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Volcano thread

A new paper that underlines my impression from reading that what goes on underground and affects us can be just as complex as what goes on over our heads/in the air around us and affects us.



From the abstract (paper is paywalled):

"...The behaviours of complex systems emerge from the connections between the parts of the system and cannot be predicted by separate investigation of the individual parts. Therefore, Earth science should follow the example of fields such as climate sciences and take advantage of tools developed in complex system science to build an integrated model to test the validity of conceptual models and advance understanding of magmatic systems."
 
Some volcanic lightning when Lewotobi, on Flores Island in Indonesia, went off again a little while ago:

 
Krasheninnikov in Kamchatka is erupting, and apparenty also has a crack through which ash is venting along multiple sites:



I don't know the source of that video, but it's probably from a military chopper. (The channel itself is not official and probably not expert, either.)

It's in the UNESCO site, but this is a pretty obscure volcano that last erupted ~400 years ago. From its GVP page, it's fairly active but goes in cycles.

It can pack a punch. Tokyo VAAC reported ash to 28,000 feet with one of today's big blasts, and the other two were respectable as well.

Gonna work up a blog post on it tonight; hope it doesn't escalate.
 
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This video is in Indonesian but it has a few more views of the volcano and (per YouTube autotranslation) they basicially are reading the official story.



Dr. Girina is quoted as saying that lava dome growth is the expected outcome, also that the sudden activity could be related ti the recent M8.8.
 
I can't get into the Russian volcano-monitoring KVERT site any more :( but Tokyo VAAC keeps issuing advisories on Krasheninnikov, and the AP reported this morning, with video, that it is still chugging away.

There's nothing dire about this eruption AFAIK, except its potential to interfere with aviation. The cracks are actually part of the volcano and its landscape, not the bad news about structural stability they sometimes can mean when a tall volcanic edifice, say, Ulawun in Papua New Guinea, is erupting. And finally, as far as I can tell, it's just a lava dome eruption in the north summit crater, not an intrinsically explosive eruption, as so many subduction-zone events are (there are ground water-lava or magma interactions, of course).

What's really cool is that this eruption very well could have been triggered by the M8.8. That's extremely rare and very :cool:
 
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