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

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

Hundreds of small earthquakes rattled one of the most dangerous volcanos in the US Tuesday, setting off fears it could be ...

MT. RAINIER, Wash. — A swarm of small earthquakes was detected at Mount Rainier Tuesday morning, according to the U.S. Geological Survey Cascades Volcano Observatory (CVO) and the Pacific Northwest ...

A swarm of small earthquakes was detected beneath Mount Rainier on July 8, 2025, but officials say there is no current threat of an eruption.

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

A swarm of small earthquakes began early Tuesday morning beneath Mount Rainier, with more than 400 minor tremors recorded as ...

Mount Rainier has been shaken by its largest earthquake swarm since 2009, according to the US Geological Survey. Hundreds of small tremors were recorded on July 8, sparking attention but no immediate ...

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

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 ...

Hundreds of earthquakes have been detected at Mount Rainier so far Tuesday morning in the largest such swarm at the active ...