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

A significant earthquake swarm was detected beneath Mount Rainier in Washington State, marking the most intense seismic activity in the area since 2009. Over 300 earthquakes have occurred since the ...

Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington’s Mount Rainier but say there is ...

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

More than 400 earthquakes rattled Washington's Mount Rainier over just 12 hours on Tuesday, sparking fears that the ...

Hundreds of small earthquakes rattled one of the most dangerous volcanos in the US Tuesday, setting off fears it could be ...

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

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

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

On Tuesday, hundreds of earthquakes were detected, with depths ranging from 1.2 to 3.7 miles below the summit.

The activity began just before 1:30 a.m. on July 8, with hundreds of earthquakes recorded at depths ranging from over a mile ...

The Pacific Northwest Seismic Network recorded hundreds of small earthquakes at Mt. Rainier on Tuesday morning. The US ...