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

Yellowstone monthly earthquake counts so far this year have gone from 53 to 48 to 63 to 51 to 94 to 1,171 to 528 to 1,029 to 115 to 111.
The trend is apparent.

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