As of July 10, 334 earthquakes had been identified over the course of two days at Washington's Mount Rainier.

Mount Rainer is rattled by more than 300 earthquakes. It's the largest swarm in years. The last large earthquake swarm at Mount Rainier occurred in 2009. During that time, more than 1,000 ...

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

As of July 10, 334 earthquakes had been identified over the course of two days at Washington's Mount Rainier.