Accidental landing of a research vessel in the San Andreas zone revealed the repeating patterns tribuldite in its core.

For generations, scientists believed that the West Coast’s two great earthquake engines — the Cascadia subduction zone and ...

A section of the San Andreas fault where earthquakes occur regularly may give off a distinct signal before it trembles to life, new research finds. The signal hints at the opening and closing of ...

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

When you buy through links on our articles, Future and its syndication partners may earn a commission. Earthquakes at the San Andreas Fault may be triggered by activity at the Cascadia subduction zone ...

Remote sections along California’s massive San Andreas Fault, where large earthquakes regularly occur, may be primed to shake again any day now, according to a new study. The area around Parkfield in ...

The tiny Juan de Fuca plate is largely responsible for the volcanoes that dot the Pacific Northwest of the United States. The plates make up Earth's outer shell, called the lithosphere. (This includes ...

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

Julia Shumway / Oregon Capital Chronicle The so-called “Big One” or Cascadia Subduction Zone earthquake expected to trigger disruptive quakes throughout the West Coast could cause more damage than ...

A huge earthquake caused by the San Andreas Fault is long overdue and continues to cause concern among seismologists. The fault is the border section between two massive tectonic plates under the ...

The Parkfield section of the San Andreas fault is sending mixed messages before a time of expected increased seismic risk. When you purchase through links on our site, we may earn an affiliate ...