Seismicity has decreased” from 30 events per hour at the peak to a few per hour as of Saturday morning, the U.S. Geological Survey said Saturday.

It’s that time of year again-- the Sunrise Corridor at Mount Rainier National Park is opening for its short season.

Mount Rainier in Washington state has been rocked by more than 300 earthquakes the largest seismic swarm in nearly two decades. While officials insist there's no need for panic, experts are watching ...

Mt. Rainier is a stunning place to hike, but one season hides serious dangers that can catch visitors off guard.

A string of earthquakes has made some wonder if this enormous West Coast volcano is about to erupt, but here's what seismologists have to say.