An earthquake with a preliminary magnitude of 3.5 rattled the L.A. metropolitan area early Saturday just hours after a 3.8-magnitude quake shook the Malibu area shortly before midnight Friday.

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

Friday offered a preview of what President's Holiday weekend will look like in San Francisco. Star-studded NBA All Star-related festivities, Chinese New Year Parade and Valentine's Day are expected to ...

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 ...

According to the California Earthquake Authority, there are more than 1.2 million homes built before 1980 that are in high hazard areas, vulnerable to collapse or destruction by a strong earthquake.