A 4.8 magnitude earthquake rocked Yellowstone National Park in Montana early Sunday, but there were no immediate reports of damage.
Peter Cervelli, a spokesman for the U.S. Geological Survey's Yellowstone Volcano Observatory said the quake, which hit at 6:34 a.m. local time, was centered almost in the middle of Yellowstone National Park, near the Norris Geyser Basin. He said any damage from the temblor would likely be minor, adding that there are not many visitors in the park at the moment.
The quake was not expected to trigger any volcanic activity, Cervelli said.
Jessica Turner, a geophysicist with the U.S. Geological Service, said the quake was the most powerful to hit the park since 1985. She said residents in the town of West Yellowstone felt the quake.