The US Geological Survey has observed a series of minor quakes occurring under Mount Rainier, which is the nearest major ...

SPOKANE, Wash. – Experts are worried about the tallest mountain in the Cascade Range, according to National Geographic magazine. The article titled “This May be the Most Dangerous U.S. Volcano,” ...

Danger from Mount Rainier isn’t always born from smoke and ash. According to the United States Geological Survey, the last significant event to happen at Mount Rainier was a no-notice lahar: a ...

It seems that there have been a lot of earthquakes recently. And ever since I was in second grade, people have insisted the Pacific Northwest was due for “The Big One.” Will we be hit soon? What do we ...

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

Beneath one of the most stunning national parks in the United States lies a slumbering giant that remains unknown to many visitors. Recent monitoring indicates ongoing ground shifts and a constant ...

For decades, cyclists have gathered before dawn in the shadow of Washington’s Mount Rainier to attempt something that borders on absurd: riding 150 miles around the massive volcano in a single day.

An outpouring of magma isn’t the biggest risk to people downhill from Mount Rainier. The active volcano’s greatest danger comes from lahars — amalgams of mud, rock and water that are as dense as wet ...