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

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

The relationship between the sites means an earthquake in one zone can trigger an earthquake in the other in a phenomenon ...

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 ...

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

Scientists compared sediment deposits created by underwater landslides from earthquakes within the Cascadia Subduction Zone ...

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

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 ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the ...