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I couldn't find how many core samples showed this event or how far away they were from each other. Maybe there was a kind of ice sheet "earthquake", where one
by swamp40 7y ago
I couldn't find how many core samples showed this event or how far away they were from each other.
Maybe there was a kind of ice sheet "earthquake", where one layer of ice slid underneath of another sheet, causing a double hit of the 1815 eruption when cored?
- intuitionist 7y agoThis doesn’t explain the contemporary South American observations, or the dendrological or viticultural data showing global cooling during that period.
- ajross 7y agoWikipedia cites cores from both Greenland and Antarctica. That would be some earthquake. No, the eruption happened for sure. We just don't know which volcano it was. In particular the southwest pacific has lots and lots of volcanism from comparatively low peaks in island regions that don't leave a lot of obvious geology around where we can see it.
- EdwardDiego 7y agoWhat about an undersea volcano also? Tonga has had a few new islands appear and then disappear, although I'm unsure as to how that would work with the gas outputs detected.