YELLOWSTONE NATIONAL PARK, Wyo. " A minor earthquake rattled remote northeastern Yellowstone National Park early Tuesday.
The U.S. Geological Survey's National Earthquake Information Center in Golden, Colo., said the magnitude 4.1 quake struck the park at 5:59 a.m.
The quake was centered about 15 miles north of Yellowstone's east entrance. People reported feeling the quake as far away as Thermopolis in western Wyoming and Billings in southern Montana.
USGS geophysicist John Bellini said the quake was strong enough to wake people up but it was probably not strong enough to cause much, if any, damage.
Yellowstone is a hotspot of geological activity and very small earthquakes occur in the park regularly.