Mount Rainier’s quiet, snowcapped profile hides a restless interior that has just rattled itself with more than a thousand ...

On the flanks of Washington State Mount Rainier, a spike in seismic rumbling has revived an old, unsettling question for the ...

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 ...

Paul Kennard knew Mount Rainier was in trouble when its most-visited tourist attraction melted. “I think the real warning bell for a lot of people was — ‘have you heard of the Paradise ice caves?’” ...