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

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.

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

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

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

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

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

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

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

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the ...

Geologists detected hundreds of small earthquakes below the 14,400-foot active volcano in Washington state. It is the largest ...