Science

catbyte

(38,881 posts) Fri Feb 13, 2026, 09:34 PM 3 hrs ago

Massive Pyroclastic Flow Descends Entire Slope of Mount Semeru Volcano (Feb 13, 2026)

I've never seen a pyroclastic flow just launch into the air like that. Usually they just hug the ground until they stop.

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Massive Pyroclastic Flow Descends Entire Slope of Mount Semeru Volcano (Feb 13, 2026) (Original Post) catbyte 3 hrs ago OP

East Java, Indonesia JoseBalow 2 hrs ago #1

wow that's pretty wild gopiscrap 2 hrs ago #2

The lift is... 2naSalit 2 hrs ago #3

JoseBalow

(9,341 posts)

1. East Java, Indonesia

Reply to catbyte (Original post)

Fri Feb 13, 2026, 10:34 PM

2 hrs ago

https://en.wikipedia.org/wiki/Semeru

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gopiscrap

(24,638 posts)

2. wow that's pretty wild

Reply to catbyte (Original post)

Fri Feb 13, 2026, 10:55 PM

2 hrs ago

I remember in May of 1980 when St Helen's blew off a 1000 feet of her top. I was in Pullman at WSU we had darkness from 130pm til the next morning

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2naSalit

(101,245 posts)

3. The lift is...

Reply to catbyte (Original post)

Fri Feb 13, 2026, 11:03 PM

2 hrs ago

Caused by the fog bank that was planted where it was and the pyrocloud interacted and then went over it.

Fantastic thing to witness, beautiful and awful all at once.

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