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 ...

In the shadow of Washington State's Mount Rainier, about 90,000 people live in the path of a potential large lahar—a destructive, fluid and fast-moving debris flow associated with volcanic slopes. At ...

PUYALLUP, Wash. — Thousands of lives are potentially at risk if Mount Rainier were to erupt and on Thursday, students in Pierce County practiced how they would escape if lahars began pushing through ...

Want to restore the planet’s ecosystems and see your impact in monthly videos? The first 100 people to join Planet Wild with ...

Jan 29 (Reuters) - A volcanic mudslide from New Zealand's 2,800 metre Mount Ruapehu is likely to be triggered in the coming weeks as melting snow fills the summit's swollen crater lake, local media ...

Perched on the volatile slopes of Volcán de Fuego in western Guatemala, geologist Gustavo Béjar López listened to the heartbeat of one of the world's most restless mountains, as he dug holes to place ...