George and his team plan to create debris-flow models for each peak in the Cascades. Their work on Mount Rainier underscored ...

This is now the largest recorded earthquake swarm at Mount Rainier since seismic monitoring at the volcano began in 1982, the ...

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

Mount Rainier was experiencing "the most significant seismic activity" at the volcano in more than 15 years as an "earthquake ...

A string of earthquakes has made some wonder if this enormous West Coast volcano is about to erupt, but here's what seismologists have to say.

More than 300 earthquakes have erupted at Washington's Mount Rainier this week, the largest earthquake swarm at the volcano ...

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

Hawaiian volcano: 26 homes destroyed; lava spewing 200 feet in the air With their towering, snow-capped peaks, the Cascade volcanoes are very different beasts from Hawaii's low-slung, shield ...

This week marks the 100th anniversary of the eruption of California's Lassen Peak.As the anniversary slides past, it leaves Mount St. Helens as the only Cascade Range volcano that has erupted over ...

The Cascade volcanoes are driven ultimately by plate tectonics, the same force behind the impending Cascadia megaquake. MacGregor Campbell / OPB.

The activity began just before 1:30 a.m. on July 8, with hundreds of earthquakes recorded at depths ranging from over a mile ...

Despite this, only a handful of Cascade volcanoes have been studied in detail using geophysical imaging. These studies have revealed signs of partial melt beneath certain volcanoes, but results ...