US Geological Survey scientists monitoring Washington State's Mount Rainier, one of America's most dangerous volcanoes, have detected elevated seismic activity and subtle ground deformation that ...

Researchers from the US Geological Survey observing Mount Rainier in Washington State, recognized as one of the most hazardous volcanoes in the United States, have identified increased seismic signals ...

Danger from Mount Rainier isn't always born from smoke and ash. According to the United States Geological Survey, the last significant event to happen at Mount Rainier was a no-notice lahar: a ...

After Mount St. Helens erupted in 1980, experts were faced with a precarious question: How can we best prepare for when—not if—the next volcanic eruption in the Cascade Range occurs? Triggered by a ...