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Yellowstone Volcano

Caldera slowly rising

8 Nov, 2007

Science magazine reports that the volcano’s caldera has been rising at a rate of up to 3 inches per year since mid-2o04.  Scientists believe the uplift is due to an infusion of magma some 6 miles underground.  However, study co-author, Robert Smith, of the University of Utah says that there is no evidence an eruption or hydrothermal explosion is imminent.