BBC News - Yellowstone supervolcano fed by bigger plume: "he underground volcanic plume at Yellowstone in the US may be bigger than previously thought, according to a new study by geologists.
The volcanic hotspot below Yellowstone feeds the hot springs, mud pots and geysers that bring millions of visitors to the US national park each year.
But the Yellowstone 'supervolcano' has erupted violently in the distant past and could do so again at some point.
The new study is set to be published in Geophysical Research Letters journal."
Thursday, April 14, 2011
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