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

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

Mount Rainier experienced a significant earthquake swarm, the largest since 2009, with hundreds of small quakes detected near ...

What if the most telling indications of an impending volcanic eruption are buried deep under the ocean, or in a fleeting succession of tiny quakes that no one perceives? As volcanoes of the Pacific ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...

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

BOISE, Idaho — Idaho Central Mountains had numerous earthquakes occur Friday, all in connection to the ongoing earthquake swarm in the area. Several of Friday’s quakes registered above ...

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

Early in 2016, without any fanfare, a swarm of earthquakes silently revved up in Southern California. The quakes didn’t occur every day, and most were too small for humans to feel, but month ...

Even though there has been a swarm of earthquakes, Westby said, that doesn't necessarily mean that an eruption of Mount St. Helens is coming soon. Volcanic forecasts can be tricky.

Forty-five quakes of magnitude 3.0 have struck Southern California on Wednesday, the largest of which was a magnitude 4.9.