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

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

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

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

The quakes began just before 1:30 a.m. on Tuesday, according to the Geological Survey at the Cascade Volcano Observatory.

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

Mount Rainier on Tuesday experienced its largest seismic activity since 2009, with a swarm of small earthquakes detected.

A 2.9-magnitude quake struck near Mount Vernon, Washington, early June 3. Residents reported feeling the tremor across Skagit County: U.S. Geological Survey.

“Mount Adams is one of those volcanoes that has been very quiet in its history. And so we typically see one earthquake up there every two to three years,” noted Thelen.

The May 18, 1980, eruption of Mount St. Helens in southern Washington claimed 57 lives and blasted the terrain of old-growth spruce over an area of 229 square miles. The blast and ensuing debris av… ...

9:31am The Presidency: First Ladies Abigail Adams & Betty Ford 10:35am Reel America: "The Eruption of Mount St. Helens" 11:00am Lectures in History: Ronald Reagan & the 1980s Conservative ...