Mount Rainier hasn't had a major eruption, with strong geologic evidence, in the past 1,000 years, Weiss-Racine said. This story has been updated to fix a typo.

Scientists monitoring an underwater volcano located 300 miles off the coast of Oregon predict that an eruption is likely ...

Hundreds of small earthquakes were detected at Mount Rainier on Tuesday in the largest such swarm at the active stratovolcano since 2009, according to the U.S. Geological Survey. The swarm began ...

Mount Rainier, despite not erupting in centuries, remains one of the most hazardous volcanoes in North America because of its massive glacial coverage.

The last time Mount Rainier saw a large swarm was over a three-day period in 2009, when 1,000 earthquakes hit, with the largest being a magnitude 2.3.