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

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

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

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

The disaster caused by a predicted large earthquake in the Pacific Northwest could be compounded by shaking along the San Andreas fault in California, scientists warned.

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

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

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

The San Andreas Fault runs nearly the entire length of California, a sliding boundary between tectonic plates. Its history is one of violent ruptures — earthquakes that have reshaped towns, destroyed ...

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

Although Californians are relatively familiar with the San Andreas Fault, the Cascadia Subduction Zone is in many ways more dangerous. That fault, where the Juan de Fuca Plate is subsiding underneath ...

Scientists made chilling new discoveries about the link between two major fault lines which mean the devastation on the West ...