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

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

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

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009 ...

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

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

A tsunami warning has been issued for south Alaska and the Alaska Peninsula after a massive 7.3-magnitude earthquake, ...

Volcano watchers said Saturday the Mount Rainier earthquake swarm rates continued to decrease. The Cascades Volcano Observatory and Pacific Northwest Seismic Network recorded 464 events since the ...

Hundreds of earthquakes are detected at or near Mount Rainier each year, with "swarms" typically occurring once or twice ...

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

The United States Geological Survey (USGS) has announced that an earthquake swarm has begun beneath Mount Rainier. According ...