Volcanos

[Lord Avalon]

Yep.

[Buster's Uncle]

[Lord Avalon]

Aaaaannnd it seems like the south vent has given up.

[Buster's Uncle]

Yup.

[Buster's Uncle]

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.

[Lord Avalon]

If one jet has reduced output, then perhaps the other can last a bit longer.

[Buster's Uncle]

Any more volcnadoes and a SyFY movie's gonna break out.  I've seen at least six.

[Lord Avalon]

From the Wed update:

"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.

[Buster's Uncle]

The north vent has been spattering intermittently, as recently as 20 minutes ago.

[Lord Avalon]

From the Thurs update:

"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."

[Buster's Uncle]

North vent is ready - it's filled inches from overflow once already.

[Buster's Uncle]

Ah.  Brief lava flow ca 12:52.

[Lord Avalon]

More gas pistoning at north vent, then overflow began ~0336 local, still going almost two hours later.

[Buster's Uncle]

Lookin' like it'll work up to a fountain without a lot of foreplay...

[Lord Avalon]

Curious. The Sat 0825 update 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.