Mount Rainier experienced its largest earthquake swarm on record this week, but seismic activity is now significantly ...

At least two people said on social media that they felt the earthquake, according to the U.S. Geological Survey.

A 4.3-magnitude earthquake jolted a lake shoreline Friday, July 11, in Southern California, the U.S. Geological Survey ...

Over 200 earthquakes have been detected around Mount Rainier, Washington, raising eyebrows during the biggest swarm of ...

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

An earthquake shook the North Carolina mountains Friday evening. According to the U.S. Geological Survey, the earthquake ...

Another 2.6-magnitude earthquake rattled Tennessee on July 9 around 8:52 p.m., according to the U.S. Geological Survey.

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Hundreds of small earthquakes were detected at Mount Rainier on Tuesday in the largest such swarm at the active stratovolcano ...

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

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

An earthquake with a preliminary magnitude of 3.6 has struck about 3 miles west of Borrego Springs in northeastern San Diego ...