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

Seismologists are closely monitoring Mount Rainier after a swarm of earthquakes struck the Pacific Northwest’s tallest ...

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

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

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

On Tuesday, hundreds of earthquakes were detected, with depths ranging from 1.2 to 3.7 miles below the summit.

WASHINGTON, USA — A "swarm" of small earthquakes near the summit of Mount Rainier Tuesday is no cause for concern, according ...

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

Scientists with the U.S. Geological Survey and the University of Washington recorded more than 400 minor earthquakes beneath ...

Mount Rainier National Park in Washington state recorded hundreds of light earthquakes early Tuesday morning, though the ...

Mount Rainier, the active volcano towering above southwestern Washington state, started rumbling — very lightly — on Tuesday.. A swarm of small earthquakes was detected under the mountain ...

Hundreds of earthquakes are detected at or near Mount Rainier each year, though typical swarms are smaller than what started ...