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 Park
The January count is in.
Yellowstone earthquake counts for the past six months have gone from 99 to 207 to 71 to 119 to 75 to 178 as the region continues what scientists are calling “a fascinating year of ups and downs.”

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