The so-called earthquake swarm at Mount Rainier dwindled Friday but has surpassed the last large event at the volcano in 2009 ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

One of the most famous mountains in Washington, Mount Rainier, has been rumbling over the last day due to the amplified ...

Mount Rainier is considered an active volcano and has not had a significant eruption in the past 500 years. However, it is ...

Mount Rainier is an active stratovolcano 45 miles southeast of Tacoma and 60 miles south-southeast of Seattle. Its last ...

The 1980 eruption cycle made Mount St. Helens one of the most famous volcanoes in the Cascades. But it is far from the only volcano in the range.

In the new study, a team from Cornell University and the USGS studied six volcanoes of various size and dormancy status within the Cascade Range in the northwestern United States—Lassen Peak ...

Washington has five major volcanoes in the Cascade Range: Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams, according to the Washington State Department of Natural ...