California has dozens of earthquakes every day. Most are below 3.0 magnitude, so small that they aren’t felt.

Investigators with San Francisco Police Department's Real Time Investigation Center demonstrate to KTVU how they used technology including drones to quickly identify and arrest suspects in a large ...

Nearly a mile deep, the Pacific Ocean volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only ...

The U.S. Geological Survey recorded three earthquakes Monday just west of Interstate 5 near Mettler. The first earthquake was ...

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To supplement the city's bare-bones emergency management team, Mayor Karen Bass turned to an Illinois-based disaster recovery ...