Two of the biggest seismic threats on the West Coast — the Cascadia Subduction Zone and the San Andreas Fault — may be more ...

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

New research offers the theory that the San Andreas fault and the Cascadia subduction zone could produce devastating ...

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

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

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

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

Samples from the seafloor reveal evidence of several earthquakes along the West Coast’s two major fault zones happening in ...

Geologic clues reveal a hidden link between two major faults. A Cascadia quake might set the San Andreas in motion soon after ...

In the Bay Area, BART plans to automatically slow down its trains and have them come to a brief stop, as the system is ...

Scientists from Oregon State University studying sediment layers in the Pacific Ocean have discovered that two of the most ...