Mount Rainier is central to Tacoma’s identity, so much so that it appears on the city’s logo. But as CNN recently reported, the striking mountain is also an active volcano — and no one knows when it ...

ALSO SEE | Washington state's volcanoes ranked among nation's most hazardous With researchers monitoring Mount Rainier so closely, Iezzi said if a big eruption were to occur, it’s likely "we would be ...

With researchers monitoring Mount Rainier so closely, Iezzi said if a big eruption were to occur, it’s likely "we would be able to see it for months in advance.” Such an eruption, with certain ...

When most of us think about active volcanoes in the U.S., Mount St. Helens, Mt. Rainier and a few others will first come to mind. However, one of the most active volcanoes in the region is about a ...

One of the world’s oldest national parks, Mount Rainier became part of the federal system in 1899, shortly after its last eruption. Park status was the culmination of a long campaign by John ...

Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new ...

It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

Staying safe during natural disasters takes preparation and awareness. Pierce County faces the threat of a volcanic eruption, ...

A seismic survey challenges the long-standing belief that only active volcanoes have large magma bodies sitting beneath them.

Millions of people around the world live near one of the roughly 1,500 active volcanoes on Earth—from Italy’s Campi Flegrei to Indonesia’s Merapi to the United States’ Mount Rainier.