http://www.popdecay.com/2011/01/23/ground-at-yellowstone-caldera-swells-dramatically/7854
Great for my hill workout day.
Great for my hill workout day.
I know we're overdue for the big one, but:
"Fortunately, the surge doesn't seem to herald an imminent catastrophe, Smith said. At the beginning we were concerned it could be leading up to an eruption," said Smith, who co-authored a paper on the surge published in the December 3, 2010, edition of Geophysical Research Letters. But once we saw [the magma] was at a depth of ten kilometers, we weren't so concerned. If it had been at depths of two or three kilometers [one or two miles], we'd have been a lot more concerned."
It's just Earth gas. A little bit of swelling, no biggie.
You can come out of your bunker, peeps:
"Based on geologic evidence, Yellowstone has probably seen a continuous cycle of inflation and deflation over the past 15,000 years, and the cycle will likely continue, Smith said.
Surveys show, for example, that the caldera rose some 7 inches (18 centimeters) between 1976 and 1984 before dropping back about 5.5 inches (14 centimeters) over the next decade."