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 ...

The San Andreas fault and a neighboring fault in Southern California have reached their highest levels of tectonic stress in ...

Scientists say Southern California's major fault systems are under the highest stress levels seen in a millennium.

A new study suggests stress levels along Southern California's San Andreas and San Jacinto fault systems are at their highest point in 1,000 years, placing the region in a "critically loaded state." ...

New research finds the San Andreas and San Jacinto faults in Southern California are more stressed now than at any time in 1,000 years, raising long-term earthquake risk for millions. Scientists ...

California is gradually shifting due to tectonic movement. Here's how impacts have impacted the state.

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 ...

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 ...

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 — ...