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

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

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

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

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

When the tectonic subduction zone beneath the Pacific Northwest moves, it does so in dramatic fashion. Not only is ground ...

A future mega-earthquake in the Pacific Northwest could lead to the “Big One” along the San Andreas fault in California—or ...

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

They are two of the West Coast's most destructive generators of huge quakes: the San Andreas fault and the Cascadia ...

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

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

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