A magnitude-3.5 earthquake was reported Saturday afternoon in the San Jacinto Mountains in Riverside County. Shaking was ...

An unforgiving atmospheric river passed through San Diego County this week, causing the San Diego River to overflow with several feet of water.

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

LOS ANGELES COUNTY, Calif. — The Malibu area was rattled by a second earthquake within a roughly seven-hour period, a preliminary 3.5 magnitude temblor that was reported at 6:30 a.m. Saturday, ...

One of the busiest airports in the United States, San Francisco International Airport (SFO) is also an important gateway for ...

The USGS has monitoring stations strategically scattered around the Bay Area in landslide-prone areas. The agency also has years of monitoring data to compare with real-time data, which helps ...

Southcrest residents are concerned about the city’s failure to clean up flooded streets and protect against future floods, despite the city’s efforts to address potholes and asphalt ...

A winter storm is moving out of the San Diego area Friday but brought much-needed rainfall and gusty winds that led to some flooding and downed trees.

San Diegans countywide are dealing with the aftermath of this week’s storm, which brought heavy rainfall and flooding to some areas.

Southern California took stock on Friday of the damage from an intense bout of rain. Among the most dramatic scenes: a Fire Department vehicle that was swept to the sea.