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 ...

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 ...

Mount Rainier - one of many volcanoes found in the ... have not been active in millennia. "Regardless of eruption frequency, we see large magma bodies beneath many volcanoes," explains Guanning ...

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.

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 ...