Mount Rainier on Tuesday experienced its largest seismic activity since 2009, with a swarm of small earthquakes detected.

Geologists are continuing to monitor Mount Rainier in Washington state days after the first earthquake swarm in more than 15 ...

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the ...

The fault has moved the curbs as much as a handspan, around 18 centimeters, since the time they were installed, up to 60 ...

A magnitude 2.3 earthquake was recorded under Mount Rainier on Wednesday, the strongest yet in a swarm of over 229 quakes this week. USGS says there's no signs of impending eruption.

A doomsday tsunami is likely to strike the US in the near future, but scientists say it's better if it hits sooner rather ...

A magnitude 2.3 earthquake was recorded under Mount Rainier on Wednesday, the strongest yet in a swarm of over 229 quakes this week. USGS says there's no signs of impending eruption.

Hundreds of earthquakes have been detected at Mount Rainier so far Tuesday morning in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey.

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...