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 ...

A swarm of hundreds of small earthquakes have been detected rumbling deep below Mt. Rainier in Washington State early Tuesday ...

The United States Geological Survey (USGS) shows lava fountains shooting up high in the latest episode of an ongoing eruption ...

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

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

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

PANAMA CITY — An earthquake with a preliminary 6.2 magnitude struck off the Pacific coast of Panama on Monday, authorities said. No injuries or damage were immediately reported.

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

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

Hundreds of earthquakes are detected at or near Mount Rainier each year, with "swarms" typically occurring once or twice ...