Friday, January 2, 2009
FOXNews.com - Yellowstone Quake Swarm Worries Scientists
FOXNews.com - Yellowstone Quake Swarm Worries Scientists: "CHEYENNE, Wyo. — Yellowstone National Park was jostled by a host of small earthquakes for a third straight day Monday, and scientists watched closely to see whether the more than 250 tremors were a sign of something bigger to come.
Swarms of small earthquakes happen frequently in Yellowstone, but it's very unusual for so many earthquakes to happen over several days, said Robert Smith, a professor of geophysics at the University of Utah." Read more.