Seismometers at Mount Rainier recorded a 72-hour burst of underground vibrations starting November 15, 2025, around 5 a.m. ET ...

Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological ...

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano since 2009. As of Thursday, July 10, 334 earthquakes had been identified at ...

Washington state may not have to worry about hurricanes, but it is volcano country. The United States has 161 active volcanoes – all in the western U.S. – but only 18 are classified as a "very high ...

No, there was no “eruption threat” or sudden seismic tremor activity at Mount Rainier. But there is an eruption of backlash for an article that stoked fears with some faulty reporting. If you were ...

SEATTLE (AP) — 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 ...

Mount Rainier’s seismic sensors showed unusual activity for several days, prompting widespread attention online, but experts told KIRO 7 News the readings came from a malfunctioning instrument rather ...

Scientists have recorded the "largest" earthquake swarm at Mount Rainier in Washington state since 2009, the U.S. Geological Survey reported. The swarm at the second-most seismically active volcano in ...