The annual Great California ShakeOut saw over 10 million residents across the state practise earthquake safety drills, ...

OSU researchers find Cascadia Subduction Zone and San Andreas Fault may be synchronized — with the potential for quakes on ...

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

Millions of residents, students and office workers in Los Angeles and Orange counties and across the state will "drop, cover ...

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

Nearly a million San Diego County residents will partake in the Great California ShakeOut earthquake drill at 10:16 a.m.

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

A total of 980,458 participants were registered in San Diego to stop everything for a minute to "drop, cover and hold on" at ...

With the Great ShakeOut earthquake drill approaching, new research suggests a potential link between two major fault lines ...

The West Coast of North America is a geologically tumultuous zone where tectonic plates collide, subducting under and ...

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