creating an alluvial fan — one of the most visually compelling and dynamic features of geology. In the case of the San Gabriel Mountains, debris flows are a scenario that’s been explored many ...

A debris flow channel in a severely burned watershed in Idaho. Amirhossein Montazeri/Boise State University, CC BY-ND ...

While damaging debris flows are not the most likely outcome ... research hydrologist with the U.S. Geological Survey. That's because the steepness of the San Gabriel Mountains and the deep ...

With rain finally on the way this weekend, debris flows are a real concern below ... research hydrologist with the U.S. Geological Survey. That's because the steepness of the San Gabriel Mountains ...

Debris flow: When water rapidly flows downhill and ... in October 1978 that destroyed more than 20 homes. The California Geological Survey said the heavy rains between December 1977 and April ...

Rain on burned hillslopes can trigger dangerous floods and debris flows. Those debris flows can move with the speed of a freight train, picking up or destroying anything in their path. They can move ...

Though wildfires around Los Angeles are contained, foothill communities remain at risk of debris flows. Heavy rain could trigger dangerous mudslides in burn areas like Altadena and Pasadena.