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 ...

a research hydrologist with the U.S. Geological Survey. "The larger debris flows can consist of these fast-moving walls of earth, trees, boulders and other really dangerous debris that can destroy ...

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 ...

California has relatively young mountains from a geology standpoint ... rain over fire-scarred mountains unleashed a debris flow that killed 16 people who had gathered at a church facility ...

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 ...

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 ...

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 ...

In the areas scarred by the Eaton Fire, just a fifth of an inch of rain could trigger a debris flow if it falls within 15 minutes, said Jeremy Lancaster, the state geologist who heads the California ...