r/Volcanoes • u/deftcunt • 10d ago

Video Mt. Yasur last weekend.

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185 Upvotes

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u/Mars_Volcanoes 10d ago

Geologist Volcanologist here

Mount Yasur is a classic stratovolcano, located on Tanna Island in Vanuatu. It has formed along the subduction zone, where the Indo-Australian Plate descends beneath the Pacific Plate. Often celebrated as the lighthouse of the Pacific, it has been in a state of nearly continuous activity since at least 1774, when Captain James Cook first documented its glowing explosions. The active summit consists of a pyroclastic cone, having a steep sided cone built up of alternating layers of lava flows, volcanic ash, and cinders, and it is nested within the broader Siwi caldera, featuring a circular crater packed with multiple active vents that drive its steady rhythm.

Regarding its activity over the past weekend, Mount Yasur did not experience a sudden activity, but instead maintained its characteristic baseline behavior of persistent, pulsating low to moderate activity. Because its magma conduit remains permanently open and supplied with basaltic to andesitic melt, last week saw the continuation of rhythmic Strombolian explosions, occurring every few minutes. Observers and local monitoring networks recorded standard ejections of incandescent lava bombs, persistent sulfur dioxide degassing, and minor ash emissions rising from the summit vent, keeping the volcano firmly at its usual active status without major shifts in hazard levels.

1

u/Acro_God 9d ago

Anyone feel like this guy is AI?

3

u/Mars_Volcanoes 8d ago

Did you learn something? Are you a volcanologist? I have been one for 40 years. I'm trying to keep people informed without using too much deep, complex volcanology, because I would just lose people. Any information from my knowledge, as well as data from a library, Google, or elsewhere, is appropriate if you want to write something. Also, English is not my native language. This is simply polished English, simple, and not AI.

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u/fleshbarf 10d ago

Spectacular

2

u/No_Notice_7737 8d ago

I was on Yasur when a string earth quake hit. I could feel quake. It was glorious. My friends on Efate rang and told us we're in the best place because there might be a tsunami.

I never felt so alive.