San Andreas, Cascadia faults could combine to produce back-to-back earthquake disasters, new research suggests – Nation and ...

These are two very different fault systems, but the sediment record suggests that in the past, at least three San Andreas ...

A retired scientist with the USGS worries about the impact the government shutdown is having on the agency's earthquake ...

Supershear earthquakes are more common than previously believed, some scientists say — carrying potentially profound risk for ...

A mega-earthquake might be triggered by two volatile faults, striking in unison, with one quake nudging the other into ...

Nearly a million San Diego County residents participated Thursday in this year's Great California ShakeOut, the statewide ...

Scientists at Oregon State University say there's new evidence that two of the best-known earthquake fault lines on the West ...

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could ...

The most widespread way is through Wireless Emergency Alerts (WEA), which sends loud alerts to all cellphones. If an ...

Watch paragliders take flight at this secluded, picturesque California beach that was at the core of San Francisco's ...