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

More than 800 earthquakes have rattled Washington's Mount Rainier in the last 30 days, sparking fears that one of America's most dangerous volcanoes is coming to life. More than half of the quakes, ...

OLYMPIA, Wash. (AP) -- A new report estimates that property losses from a massive mudflow at Mount Rainier could reach $6 billion in western Washington's Puyallup Valley. Major mudflows, known as ...

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 ...

This list of stories illustrates the role that volcanoes, especially Mount Rainier, play in Washington state. Stories describe Mount Rainier's shrinking peak due to melting ice, and the impact ...

“It’s now a larger swarm than anything we’ve seen since we’ve been (seismic) monitoring anything at Mount Rainier,” Alex Iezzi, a research geophysicist, said in an interview Thursday. Researchers ...

Construction is underway for a new emergency evacuation bridge in Orting — a bridge that has been 28 years in the making. According to the City of Orting’s website, construction started in January and ...