After a fire, areas may become more prone to debris flows and flash flooding. Here's what to know about the Mountain Fire ...

Boulders and large woody debris near the outlet of the Black Hollow drainage basin in Colorado were deposited by a debris flow on July 20, 2021. Mud and sand matrix fills the intergranular areas ...

The U.S. Geological Survey is investing $1 million in a new plan to mitigate landslides tied to $1 billion in yearly economic ...

A massive debris flow has brought a long-term closure to the Valley of the Giants, a popular hike through some of Oregon’s oldest and largest trees in the Coast Range. In early December 2023 ...

The Philippine Institute of Volcanology and Seismology (PHIVOLCS) on Thursday said it has yet to receive reports of lahar ...

In April 2022, a geoscience consultant warned Lions Bay council that climate change could bring more landslides and debris flows of varying sizes, and laid out steps that could reduce risks.

Hunga-Tonga Hunga-Ha'apai: The highest eruption column ever recorded Last year's Tonga volcanic eruption produced the fastest underwater flows ever recorded, scientists say. Huge volumes of rock ...