Waiting to Exhale

Yellowstone National Park‘s supervolcano just took a deep “breath,” causing miles of ground to rise dramatically, scientists report. …

beginning in 2004, scientists saw the ground above the caldera rise upward at rates as high as 2.8 inches (7 centimeters) a year. …

The rate slowed between 2007 and 2010 to a centimeter a year or less. Still, since the start of the swelling, ground levels over the volcano have been raised by as much as 10 inches (25 centimeters) in places.

Yellowstone Has Bulged as Magma Pocket Swells

I cannot put my hand on the book, but one of my geology texts pointed out that, if the Yellowstone supervolcano goes off again, “we will all share the experience.”



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