Alpha Centauri 2

Community => Recreation Commons => Topic started by: Vidsek on June 29, 2025, 07:29:21 pm

Title: Volcanos
Post by: Vidsek on June 29, 2025, 07:29:21 pm
Seemed time to dedicate a thread to all things magma, lava, tephra, and hydrothermal.  Oh, ok, we'll toss in intrusions and batholiths as well.

Currently, the Kilauea volcano on the Big Island of Hawai'i is starting it's 27th episode of this eruption.
And I mean starting right now: early pre-fountaining started this morning about 07:00 island time (four and a half hours ago) and has been growing into very low fountaining.  It will keep building fairly fast and in a couple hours should be spectacular.

https://www.usgs.gov/volcanoes/kilauea

Best views will be the V 1 and V 3 streaming cameras. 

 and   
Title: Re: Volcanos
Post by: Buster's Uncle on June 29, 2025, 11:54:59 pm
 ;b; ;popcorn ;b;
Title: Re: Volcanos
Post by: Buster's Uncle on June 30, 2025, 03:34:46 am
Hey actually, if you intend this as a discussion thread, that's why I moved it into Rec Commons where it'll get more discussion.  Volcanos are cool, so keep it coming. ;b;
Title: Re: Volcanos
Post by: Lord Avalon on June 30, 2025, 06:05:49 am
Early evening there, and the orange glow in lava on the ground is visible. I think output increased compared to earlier in the day. One of the cams showed the top height of the lava spurt, where the other one's view cut it off. But recently I saw the lava occasionally exceed the view of both cams. And V2 offers a nice view of the breadth of the flow.
Title: Re: Volcanos
Post by: Lord Avalon on June 30, 2025, 02:47:40 pm
I pulled up the video late last night, and found no orange rivers, no orange fountains of lava, only some residual glowing spots. Ran back the video and found the high fountains of lava stopped just before 20:00 HST. Per report https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-06-30T00:11:56+00:00

"Episode 29 of the ongoing Halemaʻumaʻu eruption ended abruptly at 7:54 p.m. HST on June 29 after nearly 11 hours of continuous fountaining.

Waning north vent fountains stopped completely at 7:54 p.m. HST, several hours after reaching maximum heights up to 1,100 ft (340 m). Flames were visible at the south vent for a few minutes afterwards. High fountains produced approximately 1.6 billion gallons (6.2 million cubic meters) of lava covering 80% of the crater floor."
Title: Re: Volcanos
Post by: Geo on July 01, 2025, 11:42:57 am
Oh heck, that's way more active then 10 years ago.
Title: Re: Volcanos
Post by: Lord Avalon on July 04, 2025, 01:36:49 pm
Interesting contrast: during the day you can see a plume of smoke coming from the vent. At night you only see a little bit, but it's glowing orange from the lava (magma?) below.
Title: Re: Volcanos
Post by: Lord Avalon on July 06, 2025, 04:16:15 am
Probable lava fountaining July 7-11, most likely 8-10.

July 5 update excerpt: "Summit inflation continues at this time, along with persistent, low-level seismic tremor. Incandescent glow has been visible at the north vent in overnight webcam views, as well as intermittent minor lava spattering and jetting. These observations indicate that another lava fountaining episode is probable, and the current summit inflation rate suggests it will occur sometime between July 7 and 11, with July 8–10 being the most likely."

https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-07-05T18:15:27+00:00
Title: Re: Volcanos
Post by: Lord Avalon on July 08, 2025, 05:37:22 am
Some lava has flowed out of the vent and cooled, accompanied by occasional splashing. It's about 1830 local on 7/7. Best view is V3, lower right.

Title: Re: Volcanos
Post by: Geo on July 08, 2025, 10:15:30 am
 :P Every time I click on that YouTube link, its nighttime over there.
Title: Re: Volcanos
Post by: bvanevery on July 08, 2025, 12:06:40 pm
So I'm on time for watching this pot boil over?  Lucky me.
Title: Re: Volcanos
Post by: Lord Avalon on July 08, 2025, 01:07:47 pm
Quote from: Geo on July 08, 2025, 10:15:30 am
:P Every time I click on that YouTube link, its nighttime over there.

Well, they are UTC -10.
Title: Re: Volcanos
Post by: bvanevery on July 08, 2025, 01:17:10 pm
If it really blows, will night turn into day?  Sorta?
Title: Re: Volcanos
Post by: Lord Avalon on July 08, 2025, 01:39:23 pm
The nighttime view has the benefit of the smoke lit by the orange glow of the magma. Currently V1 has a nice view, 0237 local.
Title: Re: Volcanos
Post by: Lord Avalon on July 09, 2025, 03:27:10 pm
Tuned in this morning (July 8, 2318 local), to see a new flow of lava that had started earlier, running out of camera view. Only a bit of low-level jetting, more roiling of lava in the vent. After ~5 min it had stopped. Eventually the lava cooled.

Recently (0423 local) activity has picked up. Not sure when the low-level fountaining started, but there is more new flow running down from the vent, and movement can be seen of lava running downhill. V2 currently showing more of the extent of the flow.


[Edit] 0427, V3 cam view shifted to the right so see more of the flow.

Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 03:38:39 pm
I geeked SO hard for volcanos as a child - and that's never really changed.
Title: Re: Volcanos
Post by: Lord Avalon on July 09, 2025, 04:36:41 pm
Just tuned back in, ~0530 local, and there's major fountaining going on.
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 04:52:11 pm
What is "major" ?  I'm looking right now and I see stuff that would be appropriate to the Vegas strip.
Title: Re: Volcanos
Post by: Lord Avalon on July 09, 2025, 05:11:24 pm
Except Vegas doesn't use molten rock. It's major compared to the low-level height it was at earlier this morning, where they didn't have to zoom out.
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 05:45:48 pm
I think Vegas using molten lock would be a big improvement for the strip.  In fact I may have even seen that in a disaster movie.  Maybe that was LA.  Big improvement though!
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 06:02:18 pm
...The one about an eruption starting from the LaBrea tar pit, and the emergency manager guy using busses and whatever was at hand for barriers to channel to lava to the ocean, I bet.  Pretty good movie...
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 06:05:17 pm
Don't remember if it was a good movie, but it had good sfx!
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 06:07:29 pm
It did.
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 08:38:55 pm
You know, there's a game in this.  Plate tectonics is a subject I've looked at for gaming purposes in the past.  Some of my master plans for SMAC-like games, have eschewed goofy mindworm and mind powers plots, preferring hard science problems instead.  Who says you have to colonize a planet that's stable and nice?  SMAC touches on this, you've got your volcanic eruptions and thermal boreholes.  But I've thought of dialing that up to Eleven, and making it THE game.

I'm not sure how I feel about terraformers.  Scientifically, there's a lot to criticize.  But game mechanically, raising land is great stuff.  It just doesn't end up being that relevant in SMAC, because it's just one subsystem among many.  The deformable and destructable map has proven to be one of the enduring value adds of SMAC though, compared to the competition.
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 08:47:31 pm
Outpost, I think it was called, roughly contemporary w/ AC, had a demo that was all outrunning a lava flow with enough modules to establish a viable new (space) colony on higher ground.  I wish I could find it, now - it was fun.
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 09:01:46 pm
1994, not really contemporary.  Found some YouTube videos of it.  2D isometric engine, not what I'm imagining we could do now in 3D.  GOG has something called Outpost 2: Divided Destiny for a few bucks.  Came out 1997, so that might be considered contemporary.
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 09:03:52 pm
I'm sure Outpost2 is what I remember.

-There seemed to be a fair number of colonize-a-planet games in the mid-late 90s.  You can guess which one I liked best...
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 09:13:20 pm
Just to get this back on the same page...
Quote from: Lord Avalon on July 09, 2025, 03:27:10 pm
Tuned in this morning (July 8, 2318 local), to see a new flow of lava that had started earlier, running out of camera view. Only a bit of low-level jetting, more roiling of lava in the vent. After ~5 min it had stopped. Eventually the lava cooled.

Recently (0423 local) activity has picked up. Not sure when the low-level fountaining started, but there is more new flow running down from the vent, and movement can be seen of lava running downhill. V2 currently showing more of the extent of the flow.


[Edit] 0427, V3 cam view shifted to the right so see more of the flow.

Whoah - it's going a lot higher than this morning.
Title: Re: Volcanos
Post by: bvanevery on July 09, 2025, 10:03:13 pm
I guess staring at this "lava lamp" could be construed as relaxing.
Title: Re: Volcanos
Post by: Buster's Uncle on July 09, 2025, 10:05:49 pm
Sound would help that, I think - but yeah.
Title: Re: Volcanos
Post by: Lord Avalon on July 10, 2025, 09:05:06 am
From yesterday's update https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-07-09T18:27:16+00:00

"Episode 28 of the ongoing Halemaʻumaʻu eruption began just after 4 a.m. HST today, July 9, 2025. High fountaining is continuing at this time, with maximum fountain heights reaching nearly 1200 feet (365 meters)."

Vegas schmegas.
Title: Re: Volcanos
Post by: bvanevery on July 10, 2025, 03:02:33 pm
I've been informed that people may be getting testy about my comments about Vegas and may not have any idea what I'm on about.  To clear the air, these little mini video windows as appear in my browser on my laptop, don't communicate any sense of scale at all.  To me they could look like lava lamps, bird baths, Vegas fountains, something on a hillside, something on a proper mountain, something at the crest of Mt. Everest, or something on Olympus Mons.  Additionally, I misread someone's initial comment that they may have thought the plume was too small.  My reaction was waaaat, it looks big enough to dominate the Vegas strip.  But I didn't say that explicitly, because I didn't think there was some reason I should have to.

Anyways, please know that people don't react to visual stuff in front of them the same way, for a whole bunch of reasons.  It's not like there's a human up there for scale.
Title: Re: Volcanos
Post by: Buster's Uncle on July 10, 2025, 03:05:22 pm
 ;b;



-Looks like the former vid has wrapped up liveness, and the second has just smoking going on.  Oh pooh.
Title: Re: Volcanos
Post by: bvanevery on July 10, 2025, 03:10:02 pm
I'm tempted to deliver a hundred cracks about Old Faithful, another point of comparison that was initially on my mind.
Title: Re: Volcanos
Post by: Buster's Uncle on July 10, 2025, 05:48:25 pm
Upper vid live again now, and currently a better view - still mostly smoking, but you can see the lava flows downhill...
Title: Re: Volcanos
Post by: Buster's Uncle on July 12, 2025, 11:25:29 pm
Smoke ever since, and little else - but it's smoking out of adjacent cracks now in the lower vid, and there's a little looks-like-snow, too, in front of the camera - I believe pressure must be rebuilding now.
Title: Re: Volcanos
Post by: Lord Avalon on July 13, 2025, 07:08:13 am
From the Sat morning update:

"Episode 28 of the ongoing Halemaʻumaʻu eruption ended just before 1:30 p.m. HST on July 9, 2025. Summit inflation resumed immediately and continues today. Low-level degassing and seismic tremor also persist. Current inflation data indicate episode 29 is likely to start between July 16 and 19."

https://www.usgs.gov/programs/VHP/volcano-updates#hvo
Title: Re: Volcanos
Post by: Geo on July 13, 2025, 05:49:34 pm
A 3-day layover? ;-)
Spots smoking all over the crater.
Does anyone know if the track(s) around the crater are closed for hikers?
Title: Re: Volcanos
Post by: Lord Avalon on July 13, 2025, 06:52:03 pm
There's construction going on. Some closures, limited parking. https://www.nps.gov/havo/planyourvisit/construction-closures.htm
Title: Re: Volcanos
Post by: Geo on July 14, 2025, 06:20:49 pm
Quote from: Lord Avalon on July 13, 2025, 06:52:03 pm
There's construction going on. Some closures, limited parking. https://www.nps.gov/havo/planyourvisit/construction-closures.htm

Ah, more of an impact due to renovation then to 'eruptive' situation itself thus.
Title: Re: Volcanos
Post by: Buster's Uncle on July 14, 2025, 06:21:44 pm
I wouldn't want to breathe the ash, even so.
Title: Re: Volcanos
Post by: Lord Avalon on July 16, 2025, 06:33:54 pm
Iceland, Sundhnúksgígar crater

Title: Re: Volcanos
Post by: Buster's Uncle on July 16, 2025, 08:34:40 pm
Whoa.   ;popcorn
Title: Re: Volcanos
Post by: Unorthodox on July 17, 2025, 03:08:08 am
hm.  New thermal pool in yellowstone. 

https://www.usgs.gov/observatories/yvo/news/another-new-hole-ground-norris-geyser-basin

I saw something the other day about a newly discovered arm of thermal activity in an unusual area of the park or something as well, but didn't really click through to read the whole thing. 
Title: Re: Volcanos
Post by: Unorthodox on July 17, 2025, 03:11:36 am
Here it is.

https://www.usgs.gov/observatories/yvo/news/yellowstone-where-theres-always-something-new
Title: Re: Volcanos
Post by: Lord Avalon on July 17, 2025, 07:31:17 am

9:17 360-degree view, https://kuula.co/share/hnXjJ?logo=1&info=1&fs=1&autorotate=0.01&thumbs=1&alpha=0.65

12:00 discussion of Isak's vid showing steam venting, as lava to groundwater ratio drops
Title: Re: Volcanos
Post by: Lord Avalon on July 17, 2025, 06:53:30 pm
Isak Finnbogason's drone footage from earlier today:

Title: Re: Volcanos
Post by: Lord Avalon on July 18, 2025, 07:08:09 pm
Will there be an eruption soon in the Phlegrean Fields (Campi Flegrei) of Italy? There have been earthquakes and ground swell over the last year or so.

https://www.ansa.it/english/news/general_news/2025/07/18/another-quake-rocks-campi-flegrei-naples_ae605948-da38-401e-9d0b-95265cc2249e.html
Title: Re: Volcanos
Post by: Lord Avalon on July 20, 2025, 03:10:38 pm
Some splashing going on in the vent. It's 0410 local; lava is bright in the darkness.


[Edit] Lava pouring down the slope about a minute later.
Title: Re: Volcanos
Post by: Lord Avalon on July 20, 2025, 03:50:24 pm
0448 local, camera zoomed out as eruption is putting out more lava. Low level fountaining, but lava is moving fast downhill. They zoomed the camera out a bit and shifted the view.
Title: Re: Volcanos
Post by: Buster's Uncle on July 20, 2025, 03:56:53 pm
Great.  I checked late last night -still smoke- today was the last day of their prediction and all.
Title: Re: Volcanos
Post by: Lord Avalon on July 20, 2025, 05:36:14 pm
I wasn't watching when they issued the Volcano Notice for Aviation about 0529, so not sure how fountaining then compares to now.*

"Episode 29 high fountains of the ongoing Halemaʻumaʻu eruption began around 5:15 a.m. HST on July 20. Lava fountains from the north vent gradually transitioned from low dome fountains less than 100 feet (30 meters high) to vertical fountains exceeding 200 feet (60 meters) around that time, accompanied by the onset of summit deflationary tilt and heightened seismic tremor. Past episodes have produced incandescent lava fountains over 1,000 feet (300 meters) high and eruptive plumes up to 20,000 feet (6,000 meters) above ground level; similar behavior may be expected within the next couple hours."

"Episode 29 was preceded by north vent lava spattering that began around 3:55 a.m., followed shortly thereafter by dome fountains and lava overflows starting around 4:11 a.m. Fountains from the north vent are reaching 330 feet (100 meters) high and feeding multiple lava streams as of 5:25 a.m. HST. "

(Excerpts of https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-07-19T02:53:39+00:00)

*[Edit] I went back and looked. Fountaining looked higher ~0520. The night view is cool. Go back and see how things change from 0420 to 0524.

Title: Re: Volcanos
Post by: Lord Avalon on July 20, 2025, 06:13:10 pm
LOL, someone's up there, put a hand shaka sign in front of the camera. About 0709 local.
Title: Re: Volcanos
Post by: Buster's Uncle on July 21, 2025, 03:48:09 am
How many tons a minute of melty dirty glass a minute y'all suppose that is?
Title: Re: Volcanos
Post by: Geo on July 21, 2025, 06:13:32 am
Quote from: Buster's Uncle on July 21, 2025, 03:48:09 am
How many tons a minute of melty dirty glass a minute y'all suppose that is?

Depends on the size (diameter) of the fountain, and the pressure behind it.
Title: Re: Volcanos
Post by: Lord Avalon on July 21, 2025, 01:38:13 pm
Except from today's update, 20250721/0459Z:

"Episode 29 of the ongoing Halemaʻumaʻu eruption ended abruptly around 6:35 p.m. HST on July 20 after over 13 hours of continuous lava fountaining.

The north vent stopped erupting around 6:35 p.m. HST, marking the end of the episode; the weakly-active south vent had stopped erupting several hours earlier. Lava fountains did not exceed 330 feet (100 meters) during this episode, as most lava was sprayed laterally within Halemaʻumaʻu crater. An estimated 1.8 billion gallons (7 million cubic meters) of lava erupted during the episode, covering approximately 80% of the crater floor."

https://volcanoes.usgs.gov/hans-public/vona/DOI-USGS-HVO-2025-07-20T18:43:54+00:00

Title: Re: Volcanos
Post by: Buster's Uncle on July 28, 2025, 03:47:12 pm
Alas, I've barely been able to see ANYthing happening in Hawaii for several days, even at night like now...
Title: Re: Volcanos
Post by: Lord Avalon on July 28, 2025, 08:20:29 pm
So impatient. From todays' (M 28 July 0849 HST) update: "Based on current rates of inflation, the next episode may occur in approximately 3-5 days."

"Fountaining associated with Episode 29 resulted in approximately 19 microradians of deflation. At the time of this update, UWD had re-inflated by about 12.5 microradians." This magma chamber refilling seems a little slower than last time.

https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-07-28T18:37:47+00:00

You can check out Isak Finnbogason's YT channel for some previous live streams of the Iceland eruption.

https://www.youtube.com/@IcelandFPV/streams
Title: Re: Volcanos
Post by: Buster's Uncle on July 28, 2025, 08:23:23 pm
Yes; I'm not a patient man, though I mostly play one on the innerwebs.
Title: Re: Volcanos
Post by: Buster's Uncle on August 01, 2025, 07:30:47 pm
Just smoking again today - and doesn't strike me as pressure building/not so much smoke from cracks surrounding the caldera.

BUT - I think I saw a little tremor right after I started the video --- SOMEthing shook the camera a tad...
Title: Re: Volcanos
Post by: Lord Avalon on August 01, 2025, 10:34:47 pm
I saw faint incandescense last night. It wasn't much, but it's been dark the past few nights before, so it seems magma is getting close to the surface.  Per today's update:

"Current inflation data suggest that episode 30 may start between now and Sunday night. ... Fountaining associated with Episode 29 resulted in approximately 19 microradians of deflation. At the time of this update, UWD had re-inflated by about 17 microradians since the end of Episode 29."

https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-01T18:22:49+00:00
Title: Re: Volcanos
Post by: Buster's Uncle on August 01, 2025, 10:54:36 pm
Just as well have both vids on each page for ease of browsing...



Kilauea was always my fave back to circa 1971...
Title: Re: Volcanos
Post by: Lord Avalon on August 01, 2025, 11:16:47 pm
It's probably been the most active in that time.
Title: Re: Volcanos
Post by: Buster's Uncle on August 01, 2025, 11:23:39 pm
Six year-old me would have PLOTZED to see live coverage/viewing, that's for sure.
Title: Re: Volcanos
Post by: Buster's Uncle on August 02, 2025, 07:17:25 pm
There's lava showing today ABOVE the main crater, looks like...

It was just a faintish glow while it was still night there...
Title: Re: Volcanos
Post by: Lord Avalon on August 02, 2025, 08:15:14 pm
Haven't seen it myself yet. Last night V1 showed more of an orange glow lighting the smoke than the previous night. V3 was weird, looked like black & white mode. Yesterday's update said episode 30 could start "between now and Sunday night."
Title: Re: Volcanos
Post by: Buster's Uncle on August 03, 2025, 03:42:08 am
Smoke's definitely thicker/more now - and I just saw V3 shake a little again.
Title: Re: Volcanos
Post by: Lord Avalon on August 03, 2025, 10:30:17 am
From Saturday's update:

"Summit tiltmeters recorded 1 microradian of deflation since last night, which may delay the start of the next episode. Current models suggest that episode 30 may start between now and Monday."

"Strong glow was visible from the north vent overnight and continues to increase after re-appearing Thursday evening. The return of glow from the north vent indicates that the shallow blockage has been partially or completely removed.  Incandescence in other parts of the crater remains very low, with weak, intermittent glow from two areas higher up on the eruptive cone. "

https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-02T18:16:04+00:00
Title: Re: Volcanos
Post by: Lord Avalon on August 04, 2025, 07:48:42 pm
I peeked in on the cams a few times this morning/noon, but saw nothing new. So I didn't think there'd be an update yet, given the recent deflation, but there was an early Monday morning one (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-04T16:09:23+00:00). Excerpt:

"Precursory eruptive activity for episode 30 of the Halemaʻumaʻu eruption began around 5:51 a.m. HST on Monday August 4 with short flows ending at 5:59 a.m. HST. Lava overflowed from the north vent at 5:51 a.m. HST and drained back with little spattering in the vent by 5:59 a.m. HST in a typical gas-pistoning cycle that produced short overflows. This had been preceded by an earlier gas-pistoning event with lava appearing at 5:14 a.m. HST and draining back with no lava flows and little spattering at 5:18 a.m. HST. It is unclear exactly when sustained eruptive activity may start, however, high lava fountaining is likely to begin today or tomorrow if summit inflation resumes.  Tilt at the summit has been weakly deflating since 4:00 a.m. HST after rising overnight"

Title: Re: Volcanos
Post by: Buster's Uncle on August 04, 2025, 07:53:19 pm
v2 doesn't seem to be working at all in the dark lately, and v3 looks night vision or something - but I did see v3 shaking again last night, their day...
Title: Re: Volcanos
Post by: Lord Avalon on August 04, 2025, 08:05:29 pm
V2 (east rim) looks to be further away compared to the others (NW & S), so doesn't seem to pick up the smoke with orange glow at night. Probably has to be hot lava coming out to show.
Title: Re: Volcanos
Post by: Buster's Uncle on August 05, 2025, 03:38:39 pm
Still night there, v2 has almost nothing, but v3, SOMEthing more impressive is definitely going on...
Title: Re: Volcanos
Post by: Buster's Uncle on August 05, 2025, 07:04:03 pm
Morning there now, mostly smoke, but v2 has more uphill lava visible than yesterday - that I sure didn't see in the dark a few hours ago...


As a kid, I always resented boring Mona Loa for being so much bigger...
Title: Re: Volcanos
Post by: Lord Avalon on August 05, 2025, 07:28:23 pm
I did see a minute or two of splashing a couple times last night. From V1 the rim of the small cone at the vent blocks the view on the other side, so I couldn't tell if any lava actually got out.

Off topic but the USGS page (https://www.usgs.gov) also has earthquake notices from around the world. There was a small, 2.7 magnitude earthquake in New Jersey, following a 3.0 one a couple days ago. There have been a few more small ones going back to July 21.
Title: Re: Volcanos
Post by: Buster's Uncle on August 05, 2025, 07:37:03 pm
I keep hearing -not actually listening or I'd know more- about some major energetic event somewhere in the Pacific basin a few days ago that doesn't seem to have produced the expected tsunamis?
Title: Re: Volcanos
Post by: Lord Avalon on August 05, 2025, 08:03:59 pm
Earthquake in Russia. At least on our shores (don't remember exactly where, can look later) highest wave was about 4' (1.2m).
Title: Re: Volcanos
Post by: Buster's Uncle on August 05, 2025, 08:13:39 pm
Thanks.


Title: Re: Volcanos
Post by: Lord Avalon on August 05, 2025, 09:47:27 pm
"Strong glow and rare spattering were visible in the north vent overnight but there have been no additional vent overflows. This morning [Tuesday], lava is 15–30 feet (5–10 meters) below the top of the vent. Low-level seismic tremor and degassing at the summit continues. Summit tiltmeter data has fluctuated over the past several days and has recorded virtually no net inflation since Friday evening, August 1.  Models suggest that episode 30 sustained lava fountaining may start between now and Thursday if the slow inflation recorded over the past 2–3 days continues." excerpt of update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-05T18:42:44+00:00)

Re: Tsunami - Crescent City CA actually suffered USD 1M in damages (https://www.actionnewsnow.com/news/crescent-city-harbor-faces-1m-tsunami-damage-plans-rebuild/article_ebe3dded-432e-446d-9e9f-563039ac1cfc.html).
Title: Re: Volcanos
Post by: Buster's Uncle on August 05, 2025, 09:53:02 pm
This is what I get for not following the news more.

Just saw a white bird fly by on v3, a first...
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 12:16:12 am
v3 is having extended shakes as I type...
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 12:33:41 pm
Thar she blows! Don't know when it started, but lava is coming out of a couple places, not fountaining high, but spreading wide out of the bigger vent.

[Edit] Sometimes I forget you can go back. At 0054 local, looking at V1, the glow is getting brighter, but you can't tell if any lava has come out. 0055 there's lava percolating. 0056 there's lava running downhill. 0112 lava percolating at south vent*. 0118 lava flows out past the nearside of that rocky protrusion at the north vent.

*This is a new vent per report.
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 01:56:23 pm
Excerpt of new report Aug 6 0206 (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-06T11:30:06+00:00):

"Episode 30 vigorous fountaining of the ongoing Halemaʻumaʻu eruption began at approximately 1:20 a.m. HST on august 6 and is currently producing broad fountains150-300 feet (45-90 meters) high from the north vent.  Lava flows from the north vent have covered about 20% of the floor of Halemaʻumaʻu crater.  There is a line of small fountains that formed south of the old south vent area that are producing lower volume flows. This appears to be a new vent for this eruption and seems to be associated with a cluster of small earthquakes just south of Halemaʻumaʻu."

"Episode 30 was preceded by spatter fountains and vigorous overflows that began at approximately 12:56 a.m. and continued to increase in intensity until about 1:20 a.m., when sustained, energetic fountaining began."
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 02:05:39 pm
 ;excite;
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 04:18:23 pm
I 'spose none of this has been making it out of the caldera?
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 04:42:36 pm
Though the report said fountaining got up to 300 feet, which is hard to tell from the video without frame of reference, I'd say no above the rim. In previous episodes they had to zoom out much more to see that high fountaining. Should be dawn soon.

Unless there's more pressure from below to cause the high fountaining, I wonder if this episode will be pretty short.

The new vent petered out about 0440 local.
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 04:44:56 pm
Definitely dawn on v3 now.
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 04:54:46 pm
A lot of smoke obscuring V3's view. Check out the others.
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 05:02:20 pm
Impressive -and daylight- on both I have easy access to...
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 09:24:41 pm
My impression is that the fountaining out of the north vent is higher, since V1 is zoomed out. Not above the rim, but there seems to be a high volume of lava, looking at how fast it's flowing downhill and in multiple streams.
Title: Re: Volcanos
Post by: Buster's Uncle on August 06, 2025, 09:33:12 pm
Definitely gotten fountaining higher in the course of the day...
Title: Re: Volcanos
Post by: Lord Avalon on August 06, 2025, 10:17:39 pm
The Iceland eruption on the Sundhnúkur crater row has ended (https://en.vedur.is/about-imo/news/a-magma-instrusion-has-started-on-sundhnuksgigarod-crater-row), per the Iceland Met Office. So it lasted 3 weeks.

Drone footage of erupting within the cone, then pulls back to show the flow field.
Title: Re: Volcanos
Post by: Lord Avalon on August 07, 2025, 01:29:42 am
Hard to tell because of the vog, but Kilauea's episode 30 appeared to end just before 1300 local.

Ah, there was an update (excerpt) (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-06T22:13:18+00:00):

"The north vent stopped vigorous fountaining at approximately 12:55 p.m. HST marking the end of the episode. The south vent stopped erupting at approximately 12:50 p.m. HST, Lava fountains reached up to 300 ft (90 m) during this episode.  A new fissure vent that transected the south wall of Halemaʻumaʻu ceased erupting at 4:40 a.m. HST on the morning of August 6. Volcanic gas emissions have greatly decreased. Lava flows from this episode on the floor of Halemaʻumaʻu within the southern part of Kaluapele (Kīlauea caldera) may continue to exhibit slow movement or incandescence as they cool and solidify over the coming days. "
Title: Re: Volcanos
Post by: Buster's Uncle on August 07, 2025, 02:11:30 pm



Yeah; nothing much going on.  I wish I'd been in a better position to appreciate when Vidsek started this...
Title: Re: Volcanos
Post by: Buster's Uncle on August 09, 2025, 02:05:10 am
v3 has been shaking several times today, sustained, just that I've seen.
Title: Re: Volcanos
Post by: Lord Avalon on August 13, 2025, 11:08:38 pm
Excerpts from Wed's update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-13T17:57:54+00:00):

"Models show that episode 31 could start sometime this weekend or early next week."

...

" Images from an overflight on August 6th showed that episode 30 flows had covered nearly 80% the Halemaʻumaʻu crater floor, which now includes the old down dropped block.

The Uēkahuna tiltmeter (UWD) recorded about 22.5 microradians of deflationary tilt during this episode. The end of the eruption was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity. The Uēkahuna tiltmeter (UWD) has recorded about 15 microradians of inflationary tilt since the episode ended."
Title: Re: Volcanos
Post by: Lord Avalon on August 18, 2025, 05:35:51 am
From the Sunday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-17T17:48:07+00:00):

"Models now show that episode 31 fountains are likely to start between August 18 and August 22 with Tuesday August 19 to Thursday August 21 the most likely window."

Moderate to strong persistent glow was visible at both the north vent and the cracks above it overnight. There was no glow from the south vent or the southern fissure. ...  The onset and strengthening of glow within the north vent may indicate that magma is slowly getting closer to the surface. Images from an overflight on August 6th showed that episode 30 flows had covered nearly 80% the Halemaʻumaʻu crater floor, which now includes the old down dropped block.

The Uēkahuna tiltmeter (UWD) recorded about 22.5 microradians of deflationary tilt during this episode. The end of the eruption was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity. The Uēkahuna tiltmeter (UWD) has recorded just under 19 microradians of inflationary tilt since the episode ended."

...

"NOTE: The V3 camera is currently in Black and White Infrared Mode at night and is much more sensitive to heat and light than the V1 camera at this time."
Title: Re: Volcanos
Post by: Lord Avalon on August 18, 2025, 04:55:39 pm
Daylight come and there's orange visible in the vent from V1. No splashing at this time.


[Edit] And then I saw a tiny splash.
Title: Re: Volcanos
Post by: Lord Avalon on August 18, 2025, 07:15:56 pm
Well, that didn't last long. Splashing appeared to end just before 0635 local.

[Edit] Some more splashing starting at 0846.
Title: Re: Volcanos
Post by: Buster's Uncle on August 19, 2025, 02:24:56 pm
Hawaii's Kilauea volcano is on the verge of erupting again (https://alphacentauri2.info/index.php?topic=22505.0)
Title: Re: Volcanos
Post by: Buster's Uncle on August 22, 2025, 04:23:50 pm
Fountaining a little bit just since I checked in ten minutes ago...
Title: Re: Volcanos
Post by: Lord Avalon on August 22, 2025, 06:05:12 pm
I posted in the thread you linked. Where do you want updates to go?
Title: Re: Volcanos
Post by: Buster's Uncle on August 22, 2025, 06:31:39 pm
Here, I guess.  That was just sharing the article.
Title: Re: Volcanos
Post by: Lord Avalon on August 22, 2025, 09:57:51 pm
From Friday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-22T18:32:08+00:00):

"Three sporadic precursory overflows were observed last night. Over the past 24 hours rapid inflation was recorded across the summit of Kīlauea after 3 days of deflation.  Models now show that episode 31 fountains are likely to start between August 22 and August 24 as long as inflation of the summit continues."

"Precursory vent overflows occurred at 8:46 p.m., 1:03 a.m., and 1:24 a.m. overnight. Spatter bursts, strombolian jetting, and low dome fountains have been intermittently visible in the V1 cam since, 4:15 p.m. yesterday August 21.  These repeated spattering events have built an inner cone within the north vent.

Tilt inflated 2.6 microradians over the past 24 hours at the Uēkahuna tiltmeter (UWD) and there was 2.2 microradians of inflation recorded at the Sandhill tiltmeter (SDH). UWD recorded about 22.5 microradians of deflationary tilt during episode 30, with about 21.2 microradians of inflationary tilt recovered through this morning."
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 12:50:51 am
Looks like lava overflowed the vent just before noon local, then picked up ~1245. Flow is a lot more orange ~1330.
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 01:04:19 am
~1400 enough output to overflow the vent rim nearest V1.
Title: Re: Volcanos
Post by: Buster's Uncle on August 23, 2025, 01:24:49 am
It's gotten a little impressive - more so while I was off feeding the cats...

Where does all the lava go?
Title: Re: Volcanos
Post by: Buster's Uncle on August 23, 2025, 01:26:23 am
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 01:43:05 am
Quote from: Buster's Uncle on August 23, 2025, 01:24:49 am
Where does all the lava go?

Just flows down into the crater.
Title: Re: Volcanos
Post by: Buster's Uncle on August 23, 2025, 02:17:32 am
There's no outlet?  How is there all that variation in terrain w/ nowhere for all that viscous lava to go?
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 02:25:02 am
There was a collapse back in 2018.

Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 02:29:09 am
I don't know how high the fountaining is, but it's going sideways a fair distance. Nice arc seen from V3.
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 02:44:14 am
From new update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-22T22:03:31+00:00):

"Episode 31 of the ongoing Halemaʻumaʻu eruption began at 2:04 p.m. HST on August 22 and is currently fountaining from the north vent."

"Episode 31 was preceded by continuous spatter in the north vent that began at approximately 8:30 a.m. and continued to increase in intensity until 11:45 a.m., when precursory lava overflows began. Fountaining the north vent began at 2:04 p.m. and and arcuate fountain approximately 100 feet (30 meters) high is feeding multiple lava streams at 2:15 p.m. HST. "
Title: Re: Volcanos
Post by: Buster's Uncle on August 23, 2025, 02:30:14 pm
Fountaining ended at 2:51 - there's currently more going on in the uphill vent, but hard to see what isn't just glowing smoke...
Title: Re: Volcanos
Post by: Lord Avalon on August 23, 2025, 04:05:15 pm
From the new update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-08-23T10:15:31+00:00):

"Episode 31 of the ongoing Halemaʻumaʻu eruption ended abruptly at 2:52 a.m. HST on August 23 after 12.6 hours of continuous fountaining.

The north vent stopped erupting at approximately 2:52 a.m. HST marking the end of episode 31. The south and intermediate vents stopped erupting earlier at approximately 12:40 a.m. and 2:46 a.m. HST. Lava fountains from the north vent reached up to 325 ft (100 m) and sustained this height during most of this episode. Fountains from the south and intermediate vents remained small, less than 33 feet (10 meters) for most of the time, but the intermediate vent fountains increased to 60-100 ft (20-30 m) by the evening of August 22.  Approximately 10,900,000 cubic yards (8,400,000 cubic meters) of lava were erupted at an average of 240 cubic yards per second (185 cubic meters per second) during the fountaining phase. Lava flows from this episode covered more than 75% of the floor of Halemaʻumaʻu within the southern part of Kaluapele (Kīlauea caldera) and may continue to exhibit slow movement or incandescence as they cool and solidify over the coming days.

Voluminous fountaining was preceded by continuous spattering in the north vent that began at approximately 8:30 a.m. HST and continued to increase in intensity until 11:45 a.m. HST, when sustained lava overflows began. During this period, a cone was built inside the north vent sealing off part of the old vent.

Fountaining in the north vent began increasing significantly at 2:04 p.m. HST accompanied by deflationary tilt and increasing tremor.  The north vent transitioned to an arcuate fountain approximately 100 feet (30 meters) high feeding multiple lava streams at 2:18 p.m. HST corresponding with the change to steep deflation and high tremor.  Sometime around 4-5 p.m. HST, low spatter fountains began to feed a small flow from the south vent.  At 7:23 p.m. HST, a new intermediate vent opened up in the area of glowing cracks between the north and south vents."
Title: Re: Volcanos
Post by: Lord Avalon on September 02, 2025, 12:28:07 am
From Monday's update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-01T18:10:29+00:00):

"Throughout last night, intermittent spattering was visible at the northern eruptive vent. Summit reinflation is underway at this time, and forecasting models suggest the window for episode 32 is later this week, September 3–6 (Wednesday to Saturday), with September 3–5 (Wednesday to Friday) being the most likely. Episode 32 may occur even later if there are unexpected slowdowns in the summit inflation rate."

"Yesterday evening after sunset, intermittent spattering became visible in webcam views of the Halemaʻumaʻu north vent, and this activity continued overnight. By this morning, the surface of the lava pond within the vent had risen to the point of being barely visible in V1cam's live-stream view. These observations confirm that lava is very near the surface again, following several nights of brightening glow that suggested it was slowly rising from deep.

The Uēkahuna tiltmeter (UWD) recorded about 22 microradians of deflationary tilt during episode 31, and the end of the episode on Saturday, August 23 coincided with a rapid change from deflation to inflation at the summit. Since then, UWD has recorded approximately 18.5 microradians of inflationary tilt in total. "
Title: Re: Volcanos
Post by: Buster's Uncle on September 02, 2025, 03:27:52 pm
We have lava flowing...
Title: Re: Volcanos
Post by: Lord Avalon on September 02, 2025, 04:29:00 pm
"The onset of episode 32 sustained fountaining is likely in the next 24-48 hours if Kīlauea continues to inflate and overflows continue."

Tuesday 0449 local update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-02T13:46:35+00:00)
Title: Re: Volcanos
Post by: Buster's Uncle on September 02, 2025, 09:47:07 pm
I'm rootin' for the uphill vent.
Title: Re: Volcanos
Post by: Lord Avalon on September 02, 2025, 10:05:29 pm
"Episode 32 of the ongoing Halemaʻumaʻu eruption is underway. Vigorous north vent lava fountains started around 6:35 a.m. HST this morning and grew to exceed 330 feet (100 meters) in height, inclined to the northeast and feeding lava flows on the western half of the crater floor. Lava fountaining continues at this time and is likely to continue until the late afternoon or evening today"

From 1017 update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-02T18:45:21+00:00)
Title: Re: Volcanos
Post by: Lord Avalon on September 03, 2025, 03:00:24 pm
From Tues 2 Sept 2015 local update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-02T23:41:35+00:00):

"Episode 32 of the ongoing Halemaʻumaʻu eruption ended abruptly at 8:01 p.m. HST on September 2 after 13.4 hours of continuous fountaining.

The north vent stopped erupting at approximately 7:49 p.m. HST. The smaller middle and south vents stopped erupting at approximately 8:01 p.m. HST with a few minutes of jetting, marking the end of episode 32. Lava fountains reached up to 500 ft (150 m) during this episode and averaged more than 250 cubic yards per sec (>200 cubic meters per sec) and produced over 12.5 million cubic yards (9.6 million cubic meters) of lava, the highest output for a short-lived fountain episode. "

...

"Lava flows from this episode covered 40-50% of the floor of Halemaʻumaʻu within the southern part of Kaluapele (Kīlauea caldera) may continue to exhibit slow movement or incandescence as they cool and solidify over the coming days. "
Title: Re: Volcanos
Post by: Buster's Uncle on September 03, 2025, 06:40:40 pm
It DID look like it was petering out when my bedtime rolled around.  It was great while it lasted...
Title: Re: Volcanos
Post by: Buster's Uncle on September 03, 2025, 06:41:36 pm
Title: Re: Volcanos
Post by: Lord Avalon on September 16, 2025, 04:48:31 am
From Monday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-15T18:40:36+00:00):

"Models suggest episode 33 is likely to begin between September 19 and 23, but could start later if the rate of inflation decreases. Moderate glow was visible from the livestream overnight."

"The Uēkahuna tiltmeter (UWD) recorded about 25 microradians of deflationary tilt during this episode. The end of the eruption was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity. The Uēkahuna tiltmeter (UWD) has recorded approximately 18.8 microradians of inflationary tilt since the episode ended."
Title: Re: Volcanos
Post by: Buster's Uncle on September 16, 2025, 09:22:40 pm
Any word on why v1 hasn't been working?
Title: Re: Volcanos
Post by: Lord Avalon on September 17, 2025, 05:50:57 am
I think the URL changes, for some reason. So you need to find what's current.

Title: Re: Volcanos
Post by: Buster's Uncle on September 17, 2025, 06:15:17 pm
Teeny bit of lava splashing started in the night...
Title: Re: Volcanos
Post by: Lord Avalon on September 18, 2025, 02:44:22 pm
Some more splashing Wednesday evening. Some low fountaining and overflow began ~2243 local, stopped 0048, resumed 0124, stopped 0142, resumed 0239, stopped again 0252, resumed 0325. Not sure if they'll say the next episode started.
Title: Re: Volcanos
Post by: Buster's Uncle on September 18, 2025, 08:08:56 pm
Title: Re: Volcanos
Post by: Lord Avalon on September 18, 2025, 09:54:58 pm
From Thursday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-18T18:38:05+00:00):

"Episode 33 lava fountaining is most likely today or tomorrow at the latest. Precursory vent overflows and gas pistoning suggest the system is building to lava fountaining in the coming 24 hours, but could start later if conditions change."

"The Uēkahuna tiltmeter (UWD) has recorded approximately 22.5 microradians of inflationary tilt since episode 32 ended, and inflation has leveled off this morning. Overnight the magma column has been rising and falling in the vent in cycles (gas pistoning), which has been common in the build up to lava fountaining episodes. Dome fountains up to 10-20 feet (3-6 meters) accompanied filling and overflowing of the vent, drainback was marked by energetic bursts of gas that sent spatter 15-30 feet (5-10 meters) high and landed on the outside of the cone. These gas piston cycles have been occurring every ten minutes, producing small episodic lava flows covering the western crater floor. Vigorous gas pistoning continues this morning."
Title: Re: Volcanos
Post by: Lord Avalon on September 19, 2025, 01:09:17 pm
Possibly episode 33 began ~0100 local? More vigorous fountaining and more flow of lava down the side of the vent. Still going an hour later. I guess we'll see how sustained this is. The many stops and starts of the previous day differed from the recent usual pattern.
Title: Re: Volcanos
Post by: Buster's Uncle on September 19, 2025, 02:24:10 pm
It's really going ATM...
Title: Re: Volcanos
Post by: Lord Avalon on September 19, 2025, 03:02:14 pm
From  Friday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-18T03:06:53+00:00):

"Episode 33 of the ongoing Halemaʻumaʻu eruption began at 3:11 a.m. HST on September 19 and is currently fountaining within the summit caldera. Current fountain height is greater than 500 feet (150 meters) and the convective plume is about 10,000 feet AGL (3000 meters AGL). "

"Episode 33 was preceded by sporadic spattering related to gas pistoning starting on September 16 and continuing into September 19th.  Small lava flows began overflowing the vent early on September 17, with overflows becoming larger on the night of September 17-18.  Dome fountains up to 10-20 feet (3-6 meters) accompanied filling and overflowing of the vent, drainback was marked by energetic bursts of gas that sent spatter 15-30 feet (5-10 meters) high and landed on the outside of the cone.  Continuous low lava fountains began at approximately 2:44 a.m. on September 19 and continued to increase in intensity until 3:11 a.m., when tilt showed deflation and seismic tremor increased sharply, marking the start of episode 33. Fountains from the north vent are reaching 500 feet (150 meters) high and feeding multiple lava streams at 3:30 a.m. HST."
Title: Re: Volcanos
Post by: Lord Avalon on September 19, 2025, 07:11:09 pm
Woo! Above the rim fountaining!
Title: Re: Volcanos
Post by: Buster's Uncle on September 19, 2025, 07:53:39 pm
THAT is a lot of lava. ;nod
Title: Re: Volcanos
Post by: Buster's Uncle on September 19, 2025, 08:36:52 pm
Just before dawn, there was considerable flow from the uphill vent...
Title: Re: Volcanos
Post by: Buster's Uncle on September 19, 2025, 11:20:20 pm
Well.  That was over abruptly.
Title: Re: Volcanos
Post by: Buster's Uncle on September 19, 2025, 11:21:48 pm
Title: Re: Volcanos
Post by: Lord Avalon on September 19, 2025, 11:41:24 pm
So that was not quite 9 hrs.

The Friday 0921 local update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-19T18:48:22+00:00) said:

"Initial fountain heights reached 700-800 ft (210-240 meters) but have lowered to just over 330 feet (100 meters)."
...

"Recent lava fountaining episodes have often been in the range of 6-12 hours duration."
Title: Re: Volcanos
Post by: Lord Avalon on September 20, 2025, 01:25:09 pm
There was  an additional update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-19T22:14:28+00:00) from Friday 1249 local:

"Episode 33 of the ongoing Halemaʻumaʻu eruption ended abruptly at 12:08 p.m. HST on September 19 after just under 9 hours of continuous fountaining.

The north vent stopped erupting at approximately 12:08 p.m. HST. The south vent stopped erupting at approximately 6:00 a.m. HST this morning after a few intermittent outbursts. Lava fountains reached up to 700–800 feet (210–240 meters) during the early hours of the eruption, making these the highest fountains since episode 28 in July.  The north vent fountain was tilted at about 60 degrees to the east, which is less than the 30–45 degree tilts of the episode 31 and 32 fountains.  After the initial stages, the fountain height remained around 300–400 feet (90–120 meters) high during most of this episode. Approximately 8.25 million cubic yards (6.3 million cubic meters) were erupted during episode 33 and lava flows covered about 2/3 of the floor of Halemaʻumaʻu crater."

...

"The Uēkahuna tiltmeter (UWD) recorded about 16.5 microradians of deflationary tilt during this episode. The end of the episode was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity at 12:08 p.m. HST, at the same time fountaining stopped."
Title: Re: Volcanos
Post by: Lord Avalon on September 23, 2025, 09:08:33 pm
From the latest update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-23T18:57:59+00:00):

"Glow from the vents was observed overnight. The summit is reinflating, and models indicate that episode 34 is likely to start between September 28 and October 1."
Title: Re: Volcanos
Post by: Buster's Uncle on September 23, 2025, 09:15:10 pm
I've seen a little glow in the uphill vent two nights running.
Title: Re: Volcanos
Post by: Lord Avalon on September 26, 2025, 06:29:45 pm
Very voggy this morning.
Title: Re: Volcanos
Post by: Buster's Uncle on September 29, 2025, 04:13:55 pm
There was a lava flow briefly ca 2:14 Hawaiian time from the uphill vent, and looks to be one commencing now, three hours later.
Title: Re: Volcanos
Post by: Lord Avalon on September 29, 2025, 05:04:23 pm
More overflow ~0414, lasting ~11 min. Then ~0511 lasting ~15 min. Seems to be percolating again a little after 0600.
Title: Re: Volcanos
Post by: Lord Avalon on September 29, 2025, 07:51:36 pm
From the Monday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-29T17:52:38+00:00):

"Glow from both north and south vents was observed overnight, with nine overflows from the north vent. The summit is reinflating, and models indicate that episode 34 is most likely to start today or tomorrow (September 29 or 30) with small chance of October 1."

"The UWD tiltmeter shows that the summit has been reinflating since the end of the fountaining episode, with 16 microradians of inflationary tilt. Overnight, HVO webcams showed persistent glow from north vent punctuated by 9 gas piston cycles of overflow and drainback at 9:47 p.m., 2:15 a.m., 4:16 a.m., 5:12 a.m., 6:18 a.m., 6:32 a.m., 7:00 a.m., 7:40 a.m., and 8:14 a.m., each lasting 5-10 minutes.  There was intermittent strong glow from south vent. This morning, the caldera is quiet with a passive outgassing plume rising from the vents."
Title: Re: Volcanos
Post by: Buster's Uncle on September 30, 2025, 04:09:09 am
The cycle's gotten a lot shorter since - interesting viewing today.
Title: Re: Volcanos
Post by: Lord Avalon on September 30, 2025, 08:51:27 pm
From Tuesday morning update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-30T18:29:28+00:00):

"Glow from both north and south vents was observed overnight, with over 100 overflows from the north vent since September 28. The summit continues to inflate, and models indicate that episode 34 is most likely to start today, September 30, with small chance of starting tomorrow on October 1."

"The UWD tiltmeter shows that the summit has been reinflating since the end of the fountaining episode, with 17 microradians of inflationary tilt. Overnight, HVO webcams showed persistent glow from north vent punctuated by over 200 gas piston cycles of lava filling and drainback, each lasting 2-10 minutes. Over 100 overflows were produced, mostly from 1:30 p.m. HST to just before midnight on September 29.  There have only been 10 overflows since midnight with the last one occurring just before 6 a.m. HST. There was intermittent strong glow from south vent through the night and early morning. This morning, the caldera is quiet with a passive outgassing plume rising from the vents."
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 11:26:42 am
Last update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-30T18:29:28+00:00) was blank (and who knows when there'll be another update), and ~2334 local lava is being expelled upward with a little more force than before, though perhaps not very high and not yet in a continuous streem. Several minutes later, enough lava has accumulated on top of the vent to run down the side.
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 12:14:16 pm
Seemed to get more serious ~0100 local, then high fountaining a few minutes later.
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 01:58:20 pm
Extremely offline: what happened when a Pacific island was cut off from the internet

A colossal volcanic eruption in January 2022 ripped apart the underwater cables that connect Tonga to the world – and exposed the fragility of 21st-century life

Guardian link (https://www.theguardian.com/news/2025/sep/30/tonga-pacific-island-internet-underwater-cables-volcanic-eruption)
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 02:20:40 pm
Kilauea V3 cam has a good view of the fountaining out of both vents.
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 03:57:05 pm
So there actually isan October 1 update, 0113 local (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-09-29T22:26:55+00:00):

"Episode 34 of the ongoing Halemaʻumaʻu eruption began at 12:53 a.m. HST on October 1. Low lava fountains, approximately 30 feet (10 meters) high began feeding lava flows from the north vent at 11:43 p.m. HST on September 30.  Fountains began to increase in size and volume along with the onset of deflation at 12:53 a.m. HST October 1. Fountains are currently up to 330 feet or 100 meters and inclined slightly to the northeast."
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 06:06:26 pm
Looks like it's over: S vent stopped 0701 local, N vent 0703.
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 06:46:01 pm
From the new update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-01T17:16:06+00:00):

"Episode 34 of the ongoing Halemaʻumaʻu eruption ended abruptly at 7:03 a.m. HST on October 1 after just over 6 hours of continuous fountaining.

The north vent began continuous fountaining at 12:53 a.m. HST on October 1, and stopped erupting at approximately 7:03 a.m. HST, marking the end of the episode. The south vent erupted between 1:45-7:00 a.m. HST. Lava fountains from the north vent were inclined to the northeast, while lava fountains from the south vent were vertical and reached up to an estimated 1300 ft (400 m) during this episode. Approximately 8.9 million cubic yards (2.5 billion gallons) were erupted during episode 34. Volcanic gas emissions have greatly decreased. Lava flows from this episode on the floor of Halemaʻumaʻu within the southern part of Kaluapele (Kīlauea caldera) may continue to exhibit slow movement or incandescence as they cool and solidify over the coming days.

The Uēkahuna tiltmeter (UWD) recorded about 26 microradians of deflationary tilt during this episode. The end of the eruption was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity."
Title: Re: Volcanos
Post by: Lord Avalon on October 01, 2025, 09:36:49 pm
Fromanother update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-01T17:33:50+00:00):

"During the lapse in appropriations, the USGS Hawaiian Volcano Observatory (HVO) continues to maintain monitoring networks and issue updates and notifications of volcanic activity via the Hazard Notification Service (https://volcanoes.usgs.gov/hans-public/). Volcano monitoring data will continue to be available on the HVO website. Static website content will not be updated until further notice and information may become outdated over time. For more information on the shutdown, please visit the Department of the Interior website at www.doi.gov."

...

"Lava fountains within the north vent began to increase in size and volume along with the onset of deflation at 12:53 a.m. on October 1, marking the start of episode 34. Lava fountains from the north vent increased in vigor quickly, reaching up to 330 feet or 100 meters and were inclined slightly to the northeast. At 1:45 a.m. HST on October 1, the south vent began erupting and became the dominant fountain as the episode progressed, reaching vertically up to an estimated 1300 ft (400 m). Fountaining from both vents persisted for just over 6 hours but gradually declined in height.  The two vents generated lava flows that covered a large portion of the western part of Halemaʻumaʻu crater floor with channelized lava flows. The south vent stopped erupting at approximately 7:00 a.m. and the north vent followed shortly after at 7:03 a.m. HST, marking the end of episode 34. Deflationary tilt at UWD totaled approximately 26 microradians during the fountaining, with an estimated volume of approximately 12 million cubic yards (9 million cubic meters or 2.5 billion gallons) of lava erupted overnight. The dual fountains also produced a record combined effusion of 500 cubic yards per second, about twice the maximum eruptive rate measured in previous episodes."
Title: Re: Volcanos
Post by: Buster's Uncle on October 01, 2025, 09:49:02 pm
Title: Re: Volcanos
Post by: Buster's Uncle on October 02, 2025, 02:43:13 pm
Interesting.  A lot of crusted lava slumping downhill overnight - but does that account for the lump up on the rim?
Title: Re: Volcanos
Post by: Lord Avalon on October 02, 2025, 06:02:09 pm
I'd say that's from the south vent fountaining.
Title: Re: Volcanos
Post by: Buster's Uncle on October 02, 2025, 06:18:03 pm
Check ca 5:29...
Title: Re: Volcanos
Post by: Lord Avalon on October 02, 2025, 06:39:14 pm
Can you explain what you mean, because I'm not sure?
Title: Re: Volcanos
Post by: Buster's Uncle on October 02, 2025, 07:08:12 pm
There's something like four significant-looking lava flows from that peak overnight, one since dawn.
Title: Re: Volcanos
Post by: Lord Avalon on October 02, 2025, 08:32:56 pm
There's a crust on top, but still hot lava underneath. The crust wasn't solid enough to hold together, then gravity takes effect.
Title: Re: Volcanos
Post by: Lord Avalon on October 06, 2025, 09:47:03 pm
It's gonna be a minute before the next episode. (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-06T18:22:05+00:00)

"Kīlauea's summit region resumed inflation following the end of episode 34, indicating that another fountaining episode is likely to start between October 15 and 20."
Title: Re: Volcanos
Post by: Lord Avalon on October 17, 2025, 10:45:59 am
From the Th Oct 16 update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-16T21:59:37+00:00):

"Precursory low-level activity for episode 35 of the ongoing Halemaʻumaʻu eruption increased this morning, October 16, 2025, with a series of lava overflows and drainbacks occurring from the south vent.

Seven lava overflow-drainback events occurred between 7:47 AM and 1:00 PM HST. A table of event times and durations is provided below. Each overflow produced short, channelized lava flows that flowed onto the crater floor. Each overflow event ended with lava suddenly draining back into the south vent. The drainbacks were immediately preceded by a short burst of spattering or small fountaining in the vent.

Additional overflow-drainback events are expected in the coming hours and days, possibly with increased frequency and/or duration. Similar events occurred during the days leading up to the onset of previous episodes. Approximately 100 overflow-drainback events were observed prior to episode 34 fountaining. Precursory activity prior to previous fountaining episodes has lasted from a few hours to a few days and has included eruptive vent spattering, small dome fountains, lava overflows, and lava drainbacks. Current activity therefore suggests that episode 35 fountaining is likely to begin within the next few days."

Follow link for details on overflows.
Title: Re: Volcanos
Post by: Lord Avalon on October 17, 2025, 11:00:44 am
There were 6 other overflow events between ~1554-1611, and 2252-2309. Longest one was ~1816-1839. Local times.
Title: Re: Volcanos
Post by: Lord Avalon on October 18, 2025, 07:41:02 am
After multiple overflows from thhe south vent, one started from the north vent ~1935 local, then splashing became fountaining ~10 min later.
Title: Re: Volcanos
Post by: Lord Avalon on October 18, 2025, 09:25:11 am
V1 cam zoomed out ~2010, then 10 min later north vent was fountaining higher. ~2050 from V3 fountaining activity at the south vent can be seen. Eventually becomes double high fountains.
Title: Re: Volcanos
Post by: Buster's Uncle on October 18, 2025, 07:32:09 pm
Title: Re: Volcanos
Post by: Lord Avalon on October 18, 2025, 09:14:15 pm
From latest update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-18T10:16:28+00:00):

"Episode 35 of the ongoing Halemaʻumaʻu eruption ended abruptly at 3:32 a.m.. HST on October 18 after 7.5 hours of continuous fountaining.

The south vent stopped erupting at approximately 3:29 a.m. HST. followed by the north vent at 3:32 a.m. HST, marking the end of episode 35. Lava fountains reached up to nearly 1500 ft (460 m) during this episode from the south vent, and 1100 ft (330 m) from the north vent.  The episode 35 fountains lasted for 7.5 hours and produced an estimated 13 million cubic yards (10 million cubic meters) of lava. The combined average eruption rate was over 500 cubic yards per second (400 cubic meters per second) from the dual fountains. Lava flows from the fountains covered about two thirds of the floor of Halemaʻumaʻu crater."
Title: Re: Volcanos
Post by: Buster's Uncle on October 18, 2025, 10:03:41 pm
Huh.  If it's rained there since late June, this is the first time I've noticed...
Title: Re: Volcanos
Post by: Lord Avalon on October 23, 2025, 09:23:13 pm
From the latest update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-23T17:33:48+00:00):

"Vents continue to exhibit incandescence, along with a few spots on crater floor lava flows as they cool and solidify. Kīlauea summit inflation continues along with seismic tremor and vent glow indicating that another lava fountaining episode is probable. Preliminary models suggest a likely forecast window of November 2–10 for episode 36." ...

"The summit continues to inflate. The Uēkahuna tiltmeter (UWD) has recorded about 1.6 microradians of inflationary tilt over the past 24 hours and an estimated 12 microradians of inflationary tilt since the end of episode 35." ...


"South vent fountains reached heights of nearly 1,500 feet (460 meters) and north vent fountains reached heights of about 1,100 feet (330 meters). These were the highest single fountain and highest pair of fountains seen during this eruption so far." [Emphasis added.]
Title: Re: Volcanos
Post by: Lord Avalon on October 28, 2025, 06:25:44 am
From Monday's update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-10-27T17:49:28+00:00):

"Both vents continue to exhibit incandescence. Kīlauea summit inflation continues along with seismic tremor and vent glow indicating that another lava fountaining episode is probable. Models suggest a likely forecast window of November 5–11 for episode 36 with November 6-9 most probable." ...

"The summit continues to inflate. The Uēkahuna tiltmeter (UWD) has recorded 1.2 microradians of inflationary tilt over the past 24 hours and over 16.5 microradians of inflationary tilt since the end of episode 35. Tremor patterns continue with defined peaks spaced 5-10 minutes apart that correlate well with the alternating periods of glow from both vents.  This pattern indicates that strong gas pistoning is occurring within the vents and the alternating patterns indicate the vents are probably coupled."
Title: Re: Volcanos
Post by: Lord Avalon on November 02, 2025, 12:45:45 am
From the Saturday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-01T17:25:27+00:00):

"Both vents continue to exhibit incandescence and there was one short overflow from the north vent overnight. Kīlauea summit inflation continues along with seismic tremor and vent glow indicating that another lava fountaining episode is probable. Models suggest a likely forecast window of November 4–8 for episode 36 with November 5-7 most probable."

"The north vent had moderate to strong glow overnight with one gas piston overflow from 9:25-9:28 p.m. on October 31. The south vent had weak to moderate intermittent glow. (Note:  All of the cameras were zoomed in on the vents last night and the infrared filters were turned off on the V2 and V3 making them appear much brighter and white in color.)   

The summit continues to inflate. The Uēkahuna tiltmeter (UWD) has recorded just under 1 microradian of inflationary tilt over the past 24 hours and 22.3 microradians of inflationary tilt since the end of episode 35."
Title: Re: Volcanos
Post by: Lord Avalon on November 06, 2025, 05:22:32 am
Wednesday update excerpt (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-05T17:21:35+00:00):

"Overflows of degassed lava continued from the south vent last night and grew in size and duration. While the north vent glowed intermittently overnight, all of the overflows have come from the south vent since just before 3 a.m. HST on October 4. Slow inflation of Kīlauea summit continued over the last 24 hours; however, repeated overflows from the north and south vents indicate the start of episode 36 is close. Models suggest a likely forecast window of November 5–8 for episode 36 with November 5-7 most probable."

"The early morning hours were dominated by large overflows from the south vent that lasted up to 1 hour and 20 minutes.  During these events lava overflowed from all sides of the south vent cone and greatly enlarged the small channelized pāhoehoe flow field growing around the cone.  The last 3 events were the largest and longest lasting of the 14 overflows that have occurred since yesterday morningʻs update. These large overflows differed from the passive pond overflows of the previous events and instead had well developed hemispherical dome fountains 15-30 feet (5-10 meters) in diameter.  Both the passive pond overflows and the dome fountains had very little spattering until drainback, indicating that mostly degassed magma is being erupted at this time. The north vent glowed intermittently last night, but there were no standing lava or overflows since early yesterday morning, October 4."
Title: Re: Volcanos
Post by: Vidsek on November 06, 2025, 07:13:43 am
  For 24/7 live monitoring of Kilaeau on the Big Island of Hawai'i, the best site is Two Pineapples @ A community of avid lava lovers, plus helpful info and educational stuff.

The main USGS Kilaeau site is at https://www.usgs.gov/volcanoes/kilauea

As of late 5 Nov. Madam Pele is in the precursor stage leading up to episode 36 of the ongoing eruption.

Great views from the USGS webcams: night glows and lava flows ongoing right now.
Title: Re: Volcanos
Post by: Buster's Uncle on November 06, 2025, 06:02:58 pm
I do believe the north and south vents are very slowly melting their way towards each other...
Title: Re: Volcanos
Post by: Buster's Uncle on November 07, 2025, 05:26:02 pm
Interesting spout opened in the north vent wall minutes before daylight...
Title: Re: Volcanos
Post by: Lord Avalon on November 07, 2025, 07:50:13 pm
I saw that. Looked like a drinking fountain, the way it arced. Was recently a wider horizontal flow, now stopped.
Title: Re: Volcanos
Post by: Lord Avalon on November 08, 2025, 06:23:43 pm
Overflow increased ~2209 local, and really picked up several min later. There was spattering upwards, not sure if they'd say it was fountaining. But the lava gushed out as time passed. Appeared to subside before 2330. Then oozing picked up, later a steady pour ~0050. Still no hours-long fountaining yet. Back to oozing out now, ~0823.
Title: Re: Volcanos
Post by: Lord Avalon on November 08, 2025, 10:59:26 pm
From today's update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-08T18:20:34+00:00):

"Overflows of degassed lava continued from the north vent throughout the past 24 hours. Inflation of Kīlauea’s summit continued at a slow rate yesterday.. However, periods of strong glow overnight from the north and south vents and the occurrence of overflows from the north vent indicate the start of episode 36 may be close. Inflation-based models suggest a likely forecast window of November 8–11 for episode 36."

"Intermittent overflows, lasting from a few minutes to 2 hours, from the north vent continued throughout yesterday and this morning. These overflows display limited spattering until drainback, indicating that mostly degassed magma is being erupted at this time. A cone has built around the vent on the back wall of the north vent, which at times erupts vigorously and main remain pouring lava back into the main vent during drainback events. A total of 135 precursory overflow events have occurred since early morning on November 3.

Summit inflation continued yesterday, but the rate has since reduced overnight. Overall, the Uēkahuna tiltmeter (UWD) has recorded approximately 0.6 microradian of inflationary tilt over the past 24 hours yielding 26.7 microradians of inflationary tilt since the end of episode 35. After overflow activity resumed at the north vent on November 6, periods of low tremor correlating with pond filling and/or overflows is followed by 1-2 minute long tremor spikes related to drainback."
Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 03:25:59 pm
I count four burn-throughs around the north vent.  -The first doesn't seem active since daylight.

I do wonder where all that's going...

Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 09:17:25 pm
I do believe this counts - happened while I watched.
Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 09:22:19 pm
Unless I miss my guess, this'll blow out the north vent hole a lot bigger...
Title: Re: Volcanos
Post by: Lord Avalon on November 09, 2025, 09:51:50 pm
From today's update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-04T21:23:45+00:00):

"Episode 36 of the ongoing Halemaʻumaʻu eruption began at 11:15 a.m HST on November 9 and is currently fountaining from both the north and south vents."
Title: Re: Volcanos
Post by: Lord Avalon on November 09, 2025, 09:55:03 pm
Interesting double fountain out of the north vent.
Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 09:56:33 pm
I suspect that blowout happened at 11:30.
Title: Re: Volcanos
Post by: Lord Avalon on November 09, 2025, 09:59:07 pm
I wonder if the height will top the last episode. South vent really shooting high.
Title: Re: Volcanos
Post by: Lord Avalon on November 09, 2025, 10:15:34 pm
Another vent near the south vent?
Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 10:31:56 pm
Something seems to be going on at the south vent, too, yeah <- I tried to post that a half hour ago.
Title: Re: Volcanos
Post by: Buster's Uncle on November 09, 2025, 10:39:07 pm
Rain again.  Interesting.

Looks to me like the south vent had a wall collapse towards the north vent, and then on the opposite side.
Title: Re: Volcanos
Post by: Lord Avalon on November 09, 2025, 11:18:21 pm
Perhaps. There was mention a while back of other vents besides the north & south, but it wasn't clear to me exactly where those were.
Title: Re: Volcanos
Post by: Lord Avalon on November 10, 2025, 03:48:12 am
From the end of episode update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-10T01:52:38+00:00):

"Episode 36 of the ongoing Halemaʻumaʻu eruption ended abruptly at 4:16 p.m. HST on November 9 after just under 5 hours of continuous fountaining.

The north vent stopped erupting at approximately 3:38 p.m. HST. The south vent dropped from 1000 to 500 feet (300-150 meters) around 3:48 p.m. HST and held steady for a while. The south vent slowly declined and eventually stopped erupting at approximately 4:16 p.m. HST, marking the end of the episode. Lava fountains reached a maximum of 1000-1100 ft (300-330 m) during this episode. The episode 36 fountains lasted for just over 5 hours and produced an estimated 10-11 million cubic yards (8-9 million cubic meters) of lava. The combined average eruption rate was over 650 cubic yards per second (500 cubic meters per second) from the dual fountains, which is the highest effusion rate recorded during this eruption. Lava flows from the fountains covered about 60- 80% of the floor of Halemaʻumaʻu crater."

...

"The Uēkahuna tiltmeter (UWD) recorded just over 23 microradians of deflationary tilt during this episode, following the beginning of fountaining at 11:19 a.m this morning. this morning. The end of the eruption was coincident with a flattening of summit tilt and a decrease in seismic tremor intensity. Past episodes have been followed by rapid inflationary tilt, and we expect that change to occur soon."
Title: Re: Volcanos
Post by: Buster's Uncle on November 10, 2025, 04:43:19 pm
I wish they'd hurry up zooming the cameras back in.
Title: Re: Volcanos
Post by: Lord Avalon on November 10, 2025, 05:30:46 pm
Maybe they're working their side hustles.
Title: Re: Volcanos
Post by: Buster's Uncle on November 11, 2025, 04:38:44 pm
It appears the north vent hole is considerably bigger now.  Who saw that coming?
Title: Re: Volcanos
Post by: Lord Avalon on November 16, 2025, 09:13:40 pm
From the Sunday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-16T18:12:22+00:00):

"Models suggests that episode 37 could occur between November 21 to November 25."

"Glow was observed from both vents overnight. The glow varied from weak to strong, mainly visible from the south vent. Tremor spikes continue every 5–10 minutes and appear to be related to gas pistoning deeper in the vents.

UWD recorded just under 1 microradian of inflationary tilt due to a slight deflation in the past 24 hours and has recorded almost 14 microradians of inflationary tilt since episode 36 ended on November 9."
Title: Re: Volcanos
Post by: Buster's Uncle on November 17, 2025, 01:57:12 am
As before, for convenience of high up on current page...
Title: Re: Volcanos
Post by: Buster's Uncle on November 21, 2025, 01:55:32 pm
Spattering lasting a few minutes in the north vent, starting 21:45, 22:31, and 00:23.  A little random action here and there, but those are the sustained episodes I spotted...
Title: Re: Volcanos
Post by: Lord Avalon on November 21, 2025, 08:08:19 pm
Getting close to another episode. From the Friday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-21T19:05:32+00:00):

"Overnight, there was strong glow from the north and south vents with brief periods of spattering. Inflationary tilt is being recorded by summit tiltmeters. Models suggest that episode 37 will probably occur between November 22 to November 26 with November 23-25 mostly likely." ...

"Inflation continues at the summit. UWD recorded 1.2 microradian of inflationary tilt in the past 24 hours for a total of 19.8 microradians recorded since the end of episode 36 on November 9."
Title: Re: Volcanos
Post by: Buster's Uncle on November 21, 2025, 08:25:53 pm
Whoa - lava flow from both vents as I type this/
Title: Re: Volcanos
Post by: Lord Avalon on November 22, 2025, 10:17:18 pm
From the Saturday update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-22T18:53:49+00:00):

"Intermittent overflows began yesterday morning from both vents. Inflationary tilt is being recorded by summit tiltmeters. Models suggest that episode 37 will probably occur between today, November 22, and November 26 with highest probability between November 23-25."

"Overflows began yesterday just after 9:30 a.m. HST, starting from the south vent, and continued intermittently throughout the day and overnight. There have been approximately 30 overflows since then, about 2/3 from the south vent and 1/3 from the north vent. Overflows alternated between the vents during the day yesterday, but were dominated by south vent overflows after dark and continuing this morning.  One overflow event from the south vent produced a dome fountain starting at 1:30 a.m. HST, which was estimated to be 5-10 meters (15-30 feet) tall and lasted for approximately 25 minutes. This was associated with a minor increase in seismic intensity (RSAM) and brief decrease in tilt. Small tremor bursts associated with lava drain back were recorded along with low to moderate, continuous seismic tremor."
Title: Re: Volcanos
Post by: Buster's Uncle on November 23, 2025, 08:06:46 pm
Someone at USGS expects it to pop any minute...
Title: Re: Volcanos
Post by: Lord Avalon on November 24, 2025, 06:48:39 am
Anticipation/ Anticipa a tion / It's making me wait

More south vent overflows with dome fountaining, but still waiting for the next episode....
Title: Re: Volcanos
Post by: Buster's Uncle on November 24, 2025, 07:03:36 pm
I really enjoy plain ol' lava flows.
Title: Re: Volcanos
Post by: Lord Avalon on November 24, 2025, 08:34:46 pm
They're really nice at night, when the gas discharge is less obscuring.
Title: Re: Volcanos
Post by: Buster's Uncle on November 24, 2025, 08:53:25 pm
I follow the buildup around the vents - and wonder about the erosive force of all those tons of molten rock.  There's certainly -observably- non-trivial action on that front.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 12:31:01 am
Wow.
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 12:36:15 am
North vent took over, and we have a new episode.
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 01:03:36 am
I wonder if the height will be greater than last time.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 01:12:26 am
Hard to tell, pulled out so far, but I think the south vent is waking up...
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 01:27:21 am
Yep.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 01:28:25 am
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 01:39:55 am
Aaaaannnd it seems like the south vent has given up.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 01:47:51 am
Yup.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 01:54:07 am
Dust devil at the south vent - they'll go wild for that on Facebook...

-I don't think 37's gonna set a duration record.
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 02:09:30 am
If one jet has reduced output, then perhaps the other can last a bit longer.
Title: Re: Volcanos
Post by: Buster's Uncle on November 26, 2025, 02:16:39 am
Any more volcnadoes and a SyFY movie's gonna break out.  I've seen at least six.
Title: Re: Volcanos
Post by: Lord Avalon on November 26, 2025, 06:11:47 pm
From the Wed update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-11-26T06:35:56+00:00):

"Episode 37 of the ongoing Halemaʻumaʻu eruption ended abruptly at 11:39 p.m. HST on November 25 after 9.2 hours of continuous fountaining.

The north vent stopped erupting at approximately 11:39 p.m. HST marking the end of episode 37. No lava fountains or flows erupted from the south vent during episode 37. Dual lava fountains from the north vent reached maximum heights of 500-600 ft (150-180 m). Continuous fountaining lasted for 9.2 hours and produced an estimated 8.2 million cubic yards (6.3 million cubic meters) of lava. The combined average eruption rate was over 200 cubic yards per second (190 cubic meters per second). Lava flows from the fountains covered about 75% of the floor of Halemaʻumaʻu crater.

The eruptive plume reached heights of more than 14,000 ft (4,200 m) above sea level during episode 37. Volcanic gas emissions greatly decreased after lava fountaining ended.

The Uēkahuna tiltmeter (UWD) recorded about 16.5 microradians of deflationary tilt during episode 37. The end of lava fountaining was coincident with a rapid change from deflation to inflation at the summit and a decrease in seismic tremor intensity."

Without any height indicators it's hard to judge from the livecam view. I thought it was going to be higher than 600'. It did last a little longer than the last couple episodes. I guess lower fountaining also means the magma chamber isn't getting emptied as quickly.
Title: Re: Volcanos
Post by: Buster's Uncle on December 02, 2025, 04:16:45 pm
The north vent has been spattering intermittently, as recently as 20 minutes ago.
Title: Re: Volcanos
Post by: Lord Avalon on December 04, 2025, 09:14:41 pm
From the Thurs update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-04T18:06:28+00:00):

"Summit inflation resumed mid-day yesterday and continued until 5 a.m. HST this morning.  A slight deflation of the summit is occurring now. Overall inflation of the summit, glow from the vents, and intermittent spattering indicate that another fountaining episode is likely.  Models suggest the onset of episode 38 fountains will occur between December 6 and 9, based on ground deformation models."
Title: Re: Volcanos
Post by: Buster's Uncle on December 05, 2025, 08:10:20 pm
North vent is ready - it's filled inches from overflow once already.
Title: Re: Volcanos
Post by: Buster's Uncle on December 05, 2025, 11:02:26 pm
Ah.  Brief lava flow ca 12:52.
Title: Re: Volcanos
Post by: Lord Avalon on December 06, 2025, 03:33:49 pm
More gas pistoning at north vent, then overflow began ~0336 local, still going almost two hours later.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 05:41:37 pm
Lookin' like it'll work up to a fountain without a lot of foreplay...
Title: Re: Volcanos
Post by: Lord Avalon on December 06, 2025, 06:52:54 pm
Curious. The Sat 0825 update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-06T17:48:37+00:00) said that episode 38 was about to start, and I was thinking it already had? I wonder what time the next update will give as the start.

South vent is fountaining some, earlier than last time.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 07:35:09 pm
That one was about a half hour early, according to whatever standard they use.  https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-06T18:28:33+00:00

Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 07:39:22 pm
My.  South vent went into overdrive while I was posting.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 07:51:21 pm
Major wall blowout on south vent 9:46.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 07:59:04 pm
I think it just knocked out v3.
Title: Re: Volcanos
Post by: Lord Avalon on December 06, 2025, 08:29:27 pm
V2 has a good shot of the horizontal throw of one of the fountains.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 08:35:04 pm
How is there no lava flow visible from over there, I wonder?
Title: Re: Volcanos
Post by: Lord Avalon on December 06, 2025, 08:37:18 pm
There's a lot of dark smoke.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 08:37:51 pm
There's tons of glowing lava.
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 08:57:51 pm
Wild guess, V3 was about a quarter mile distant...
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 09:12:35 pm
https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-06T19:49:52+00:00

"Activity Summary:

Episode 38 fountains began at about 8:45 a.m. HST from the north vent after several north vent overflows overnight.  Low fountains and overflows were confined to the two sub vents within the north vent cone for several hours prior to the onset of Episode 38.  Fountains and flows from the south vent began at 8:49 HST.  All three vents are currently producing fountains. South vent fountains are close to 1200 feet (370 meters) high while the north vent fountains have dropped well below their maximum height of 500 feet (150 m).  Hot lava and pumice from the south vent fountained destroyed the V3 streaming camera site within the closed area just before 10:00 a.m. HST.   

Prior to the south vent becoming dominant, there were 3 roughly equal sized 500 foot (150 meter) high fountains with 2 from the north vents and 1 from the south vent.  This triple fountain is an extremely rare event, and this is the first time during this eruption it has been observed. "



-That misses a third north sub-vent, not visible since activity stepped up, and I think two extras in the south vent - hard to tell...
Title: Re: Volcanos
Post by: Buster's Uncle on December 06, 2025, 09:41:57 pm
Looks like the left north sub-vent is done, right almost...
Title: Re: Volcanos
Post by: Buster's Uncle on December 07, 2025, 01:54:27 am
...Pretty surprised the south vent has held on this long...
Title: Re: Volcanos
Post by: Lord Avalon on December 07, 2025, 04:16:04 am
9.5 hrs for this episode so far.
Title: Re: Volcanos
Post by: Lord Avalon on December 07, 2025, 01:59:22 pm
From the late Sat update (https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-HVO-2025-12-07T00:34:25+00:00):

"Episode 38 of the ongoing Halemaʻumaʻu eruption ended abruptly at 8:52 p.m. HST on December 6 after 12.1 hours of continuous lava fountaining.

The south vent stopped erupting at approximately 8:52 p.m. HST, marking the end of the episode. The dual north vents stopped erupting much earlier at approximately 11:50 a.m. Lava fountains reached heights of up to 1,000-1,200 ft (300-370 m) during episode 38. Fountains were down to about 400 feet (120 meters) high just before the abrupt end of the eruption. Lava fountaining lasted for 12.1 hours and produced an estimated 16 million cubic yards (12 million cubic meters) of lava. The combined average eruption rate was over 250 cubic yards per second (190 cubic meters per second) from the lava fountains.

Sustained lava fountains began erupting from two vents located within the north cone at 8:45 a.m. HST on December 6 after just over 5 hours of precursory lava overflows. The south vent then began fountaining at 8:49 a.m. By 9:15 a.m. a rare triple fountain event was underway with the two north vents and the south vent all erupting together at heights of about 500 feet (150 meters). By 9:40 a.m. the south vent fountain grew to about twice as high as the north vent fountains. The highest peak or instantaneous effusion rate of 1,300 cubic yards per second (1,000 cubic meters per second) occurred just before 10 a.m. when the south vent exploded. The enlarged south vent produced an inclined fountain over 1,000 feet (300 meters) tall that sprayed the south wall of Halemaʻumaʻu crater. Hot pumice and molten spatter from this fountain destroyed the HVO "V3" streaming camera site.

Lava flows from this episode's fountains covered 50-60% of the floor of Halemaʻumaʻu crater. Lava flows near the vents and on the floor of Halemaʻumaʻu within the southern part of Kaluapele (Kīlauea caldera) may continue to exhibit slow movement or incandescence as they cool and solidify over the coming days."
Title: Re: Volcanos
Post by: Lord Avalon on December 07, 2025, 02:14:25 pm
Geologist Shawn Willsey discussing latest episode:
Title: Re: Volcanos
Post by: Lord Avalon on December 07, 2025, 02:31:17 pm
"Volcano Watch - Tracking the growth of a new pu'u (hill) at Kilaueap (https://www.usgs.gov/observatories/hvo/news/volcano-watch-tracking-growth-a-new-puu-kilauea)"

"Tephra formed by lava fountains during the ongoing Kīlauea summit eruption has created a new puʻu (hill) southwest of Halemaʻumaʻu crater. The new puʻu is visible from the public viewing areas around Kīlauea summit in Hawaiʻi Volcanoes National Park. The USGS Hawaiian Volcano Observatory (HVO) has been busy tracking the continued growth of this young geologic feature."

Click through to see the diagram and the rest of the article.
Title: Re: Volcanos
Post by: Buster's Uncle on December 07, 2025, 02:52:30 pm
Early, Willsey points out that third north subvent fountaining straight up, mistaking it for the left vent.

Pity he missed the explosion on V3, which had the only good view...

Title: Re: Volcanos
Post by: Buster's Uncle on December 07, 2025, 05:24:07 pm
I sure would like a better look at the south vent than I'm likely to get soon...
Title: Re: Volcanos
Post by: Lord Avalon on December 07, 2025, 08:41:50 pm
This guy mentions the south vent "explosion" around 42s.
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