Mount Adams, Washington state's largest active volcano, is witnessing a surge in seismic activity. The seismic activity has alarmed scientists, who are closely monitoring the situation. The ...

This volcano is considered a 'high threat' due to its ability to trigger landslides, debris avalanches and mudflow that can ... landslides and lahars, or muddy flows of rock, ash and ice that ...

Crandell described a massive lahar, known as the Electron Mudflow, that had formed about 500 years ago near an unstable region on Mount Rainier's western flank. "It’s not for lack of looking ...

A lahar (a destructive mudflow of volcanic ash, rock, water and ice that can flow down a volcano's slopes) from the volcano would give residents as little as 40 minutes to flee. This bridge is one of ...

One of the people who would pass away in the tragedy was teenager Omayra Sánchez Garzón, who spent 60 hours trapped underneath volcanic mudflow, known as lahars. Armero after the devastating ...

California (KCAL/KCBS) — Swift Water Rescue Teams helped six people from their vehicles Thursday morning after heavy rains triggered mudflow that poured onto the roadway in San Jacinto.

When the volcano does erupt, a fast-moving lahar will give Orting residents as little as 40 minutes to evacuate. This bridge is one of two planned to help pedestrians evacuate during a lahar.

As a late-winter storm brings rain to Southern California, evacuation orders and warnings have been issued in recent wildfire burn areas in Los Angeles and Orange counties. Official interactive ...