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