A swarm of hundreds of small earthquakes has been detected rumbling deep below Mt. Rainier in Washington State early Tuesday morning, though geologists stress there is no cause for concern. The quakes ...

Add Yahoo as a preferred source to see more of our stories on Google. An active volcano, Mount Rainier has erupted thousands of times during its relatively young life. Photograph by Philip Kramer, ...

Researchers detected the largest Mount Rainier earthquake swarm on record. Over 400 small quakes have been located as of Friday and many more have been detected. The temblors have shown no evidence ...

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 quiet, snowcapped profile hides a restless interior that has just rattled itself with more than a thousand tiny earthquakes, a reminder that one of the country’s most dangerous ...

Mount Rainier has lost glaciers due to the warming climate. Glacier melt threatens rivers, salmon habitats and hydropower across Washington state. South-facing glaciers without high-elevation ...

Out of the five peaks studied in Washington — Rainier, Liberty Cap, Colfax Peak, East Fury and Eldorado Peak — only Colfax and Liberty Cap now maintain a year-round layer of ice and snow. Researchers ...