Study: Magma chamber beneath Yellowstone more than 2 times larger than previously believed

  • Article by: MATT VOLZ , Associated Press
  • Updated: December 16, 2013 - 9:58 PM

HELENA, Mont. — The hot molten rock beneath Yellowstone National Park is 2 ½ times larger than previously estimated, meaning the park's supervolcano has the potential to erupt with a force about 2,000 times the size of Mount St. Helens, according to a new study.

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