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

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 ...

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

The series of earthquakes is the first major swarm of seismic events since 2009. Is it safe if you're planning on visiting?

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

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

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

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

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

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday.

Mount Rainier is considered an active volcano and has not had a significant eruption in the past 500 years. However, it is ...