A dangerous climb is renewing the focus on Mount Rainier's extreme hazards.

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

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 ...

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 ...

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 ...

The United States has a range of active volcanoes to offer in its geography, apart from other natural wonders. From Mount St Helens in Washington to the Mauna Loa in Hawaii, these structures have a ...

The younger Mount Rainier stands atop the remnants of two older volcanic stories. The Naches Peak Loop trail is popular for its views of Mount Rainier, but there are more volcanic stories to be found ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SEATTLE (AP) — Officials are tracking the ...