An intense storm could cause flooding and debris flows in areas burned by wildfires. Some residents have begun to evacuate.

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

California is riddled with a number of fault lines that frequently cause earthquakes, including Arrowhead, Waterman Canyon, ...

An atmospheric river is expected to hit California later this week, bringing heavy rain and wind to much of the state.

This USGS map shows the point at which the tectonic plates ... warning that extended from Oregon to just north of Santa Cruz.

In some areas, hazards have surged. Buildings in the highest hazard zones will be subject to the strictest fire-resiliency ...

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

Several cities in Southern California are expecting heavy bouts of rain Wednesday through Friday, with the flash flood risk ...

Altadena residents and arborists are sounding the alarm about protecting the town’s trees as crews get set to begin phase two ...