A powerful, atmospheric river-driven storm is hitting California today, bringing with it heavy rain, strong winds and feet of Sierra snow. The storm, which prompted a lengthy flood advisory for San ...

Rain bringing possible flooding and risks of debris flows near the burn scar of last year's Airport Fire​ led to Orange County officials announcing Wednesday that evacuation warnings for those areas ...

Scientists using seismic data tracked groundwater levels beneath the L.A. area. They found heavy rains in 2023 boosted ...

Mudslides are dangerous torrents that are usually referred to by geologists and first responders as debris flows. They have ...

NASA scientists used satellite measurements to map out local subsidence and uplift across the Golden State, which plays into ...

A new rain storm is bearing down on California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

After the Southern California wildfires burned tens of thousands of acres last month, thousands of Angelenos are returning home for the first time in weeks.

When hills are healthy, vegetation can anchor the soil in place. But when that is burned off, hillsides become vulnerable to erosion, and slopes can come crashing down.