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 ...

Two fault systems on North America’s West Coast – the Cascadia subduction zone and the San Andreas fault – may be ...

A recent study suggests the Cascadia subduction zone and the San Andreas fault may be synchronized, with seismic activity on ...

Although Californians are relatively familiar with the San Andreas Fault, the Cascadia Subduction Zone is in many ways more ...

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

A Cascadia subduction zone earthquake is coming for the Pacific Northwest, and when it hits, scientists now believe, it could cause the San Andreas fault in California to go off. “It would be a very ...

A region of the infamous San Andreas Fault could produce an earthquake any day now, scientists suspect. The San Andreas Fault, which is the border section between two huge tectonic plates beneath ...

What could the next mega-earthquake on California's notorious San Andreas fault look like? Would it be a repeat of 1857, when an earthquake estimated at magnitude 7.7 to 7.9 ruptured the fault from ...

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

Monday’s magnitude 4.4 earthquake centered four miles northeast of downtown Los Angeles was modest but packed quite a jolt. Although no major damage was reported, experts say the temblor was in the ...

A new report studied a massive earthquake that ruptured in the southeast Asian country of Myanmar on March 28 — on a fault known for being eerily similar to California’s notorious San Andreas fault.