A 3.3-magnitude earthquake shook San Ramon late Monday night, giving residents across the East Bay a brief jolt but causing ...

This is read by an automated voice. Please report any issues or inconsistencies here. New research suggests the San Andreas fault and the Cascadia subduction zone could produce devastating ...

LOS ANGELES (KABC) -- A group of emergency managers, geologists and interested residents took part in a tour of the San Andreas Fault over the weekend. The tour was led by seismologist Dr. Lucy Jones, ...

They are two of the West Coast’s most destructive generators of huge earthquakes: The San Andreas fault in California and the Cascadia subduction zone offshore of California’s North Coast, Oregon, ...

SAN FRANCISCO -- Scientists say there's new evidence that two of the best-known earthquake fault lines on the West Coast are in sync and that has the potential for a major disaster. A new study by ...

The threat of a 9.0-magnitude earthquake along the Cascadia Subduction Zone has hung over the Pacific Northwest for decades. Seismologists and emergency managers say “The Big One” could be one of the ...

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 ...