Record stress is building on Southern California's San Andreas and San Jacinto faults, raising the risk that both could ...

Scientists say the San Andreas and San Jacinto faults are more stressed than at any time in 1,000 years, raising questions about future California quakes.

Earthquake experts have long warned of a looming "Big One" that will have devastating impacts. A study says warning signs ...

Along the remote coast where the San Andreas Fault meets the Cascadia subduction zone, earthquakes too small for humans to feel are sketching out a hidden map of danger. By tracking these tiny tremors ...

The San Andreas fault and a neighboring fault in Southern California have reached their highest levels of tectonic stress in 1,000 years, and a rupture at one fault could propagate to the other, ...

Northern California’s coast keeps you on alert, even on quiet days. Offshore, three tectonic plates meet near Humboldt County at the Mendocino Triple Junction. It is where the San Andreas fault system ...

New research finds the San Andreas and San Jacinto fault systems are in a “critically loaded” state, with stress levels that ...

California isn’t exactly where it used to be. Here’s how earthquakes have gradually reshaped the state over time.

Add Yahoo as a preferred source to see more of our stories on Google. Tectonic stress along Southern California’s San Andreas and San Jacinto fault systems has reached — and in some areas exceeded — ...