SEATTLE (AP) — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

While considered an active volcano, Mount Rainier hasn’t erupted in at least a century, possibly much longer. The U.S ...

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.

Mount Rainier is considered an active volcano and has not had a significant eruption in the past 500 years. However, it is potentially the most dangerous volcano in the Cascade Range due to its height ...

A "swarm" of earthquakes began at Mount Rainier in Washington in the early morning hours on Tuesday with hundreds of quakes detected so far, making it the largest such event at the volcano since 2009.

Hundreds of small earthquakes were detected at Mount Rainier on Tuesday in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey.

The last significant earthquake at Mount Rainier occurred in 2009, and rumbled on for three days. More than 1,000 seismic events were recorded with the most substantial registering a 2.3 magnitude.

Mount Rainier experienced its largest earthquake swarm since 2009 on Tuesday. USGS reported hundreds of small quakes under the surface near the stratovolcano's summit . The agency said there was ...

Historically, swarms of earthquakes at Mount Rainier occur one to two times per year, with the last significant swarm occurring in 2009. Over 1,000 earthquakes were reported during the 2009 swarm.