Three huge tectonic plates meet at the Mendocino triple junction off the coast of northern California, and a new study ...

On January 19, a magnitude 4.9 earthquake struck near Indio, shaking communities across Southern California and renewing attention to regional seismic risk. Initial alerts listed the Southern ...

“I was just absolutely appalled,” Canepa told SFGATE over the phone Sunday, after writing a letter to the California Coastal ...

When it comes to emergencies and natural disasters, one of the main concerns for residents in California is earthquakes. World-renowned seismologist Dr. Lucy Jones says the San Andreas Fault is not ...

Scientists suggest a major Cascadia megathrust earthquake could trigger stress on the San Andreas Fault, increasing the risk of linked quakes and a far more devastating Pacific Coast disaster than ...

For more than a month, the San Francisco Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes — the latest in a series of seismic swarms that have rattled windows and raised ...

The other quakes in the Saturday, Dec. 21, swarm ranged from magnitude 1.3 to 3.0. Getty Images/iStockphoto A swarm of at least a dozen earthquakes reaching up to magnitude 3.9 rattled San Ramon near ...

San Ramon earlier was hit by a swarm of more than 90 quakes starting Nov. 9. Getty Images/iStockphoto A swarm of at least six earthquakes reaching up to magnitude 2.9 rattled San Ramon near San ...

Drop. Cover. Hold on. That’s the three-part jingle every Californian learns to stay safe in earthquake country. Scientists forecast a more than 99% chance that earthquakes of 6.7 magnitude or larger ...