Science Yellowstone earthquake: Biggest in 34 years, but not the 'big one'

Yellowstone earthquake: A magnitude 4.8 earthquake struck Yellowstone National Park Sunday. But the quake didn't appear to signal an eruption of the huge super-volcano lying beneath the park.

Yellowstone National Park, which sits atop one of the world's largest super-volcanoes, was struck on Sunday by a magnitude 4.8 earthquake, the biggest recorded there since February 1980, but no damage or injuries were immediately reported.