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

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

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

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

The earthquake, with a preliminary magnitude of 7.3, struck south of Sand Point, Alaska, a community of about 600 people.

Wednesday’s magnitude 7.3 earthquake off Alaska's Aleutian Islands chain struck in a region that has experienced a handful of powerful ...

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

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

A tsunami warning issued for south Alaska and the Alaska Peninsula after a massive 7.3 magnitude earthquake Wednesday has ...

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