At 2 a.m. on July 8, 2025, instruments across Washington State picked up an unusual signal from Mount Rainier. Over the following weeks, the volcano generated 10,834 small earthquakes, the largest ...

Mount Rainier has lost height and its highest point has migrated, a subtle but symbolically powerful shift atop one of the ...

A Daily Mail article told of sudden seismic activity and "unprecedented 72-hour tremor phase" at Mount Rainier. They were woefully wrong, scientists say.

Experts clarified that Mount Rainier was not at risk of eruption after widespread online speculation spread. A “technical ...

Washington's Mount Rainier has suddenly awoken and is buzzing with almost nonstop activity for days, stoking fears that an eruption could come soon. The mountain is one of America's most dangerous ...

Rime ice buildup on Mount Rainier's only analog seismic station has led to false reports of increased tremor activity, the Pacific Northwest Seismic Network said.

SEATTLE — Officials are tracking the largest swarm of earthquakes in more than 15 years on Washington's Mount Rainier but say there is no indication that the cluster of quakes is cause for concern.

Researchers detected the largest Mount Rainier earthquake swarm on record. Over 400 small quakes have been located as of Friday and many more have been detected. The temblors have shown no evidence ...