QT Yellowstone Caldera (the eruptions of which can be violent enough to send a layer of ash six feet deep as far away as Chicago and which erupts every 600,000 or so years and last erupted 640,000 years ago) update


There were 48 earthquakes reported at Yellowstone in February, down from 53 in January, as we continue the search for anything in this country that isn’t in worse shape than it was a month ago.

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