A decade-long California experiment has tested how reliably scientists can forecast earthquake activity over the following 24 ...

Two earthquakes struck off Northern California within 44 seconds Wednesday evening, forming what scientists call a seismic doublet. The first quake measured magnitude 3.8 and occurred about 15 miles ...

Researchers at a public university in California say they have developed a way to identify the most likely locations of some of the world’s biggest earthquakes. It comes the same day a quake shook ...

California had a busy weekend underground, with hundreds of micro-earthquakes recorded across the state, including a preliminary magnitude 3.0 quake in Contra Costa County on Monday morning. The ...

A magnitude-3.7 earthquake was reported Monday afternoon off the Southern California coast. The earthquake at 1:22 p.m. was about 18 miles southwest of Dana Point. Light shaking was reported in Laguna ...

Add Yahoo as a preferred source to see more of our stories on Google. Researchers at a public university in California say they have developed a way to identify the most likely locations of some of ...