Southern California’s San Andreas Fault is at its highest stress level in 1,000 years sparking fear among researchers (opens original article in a new tab)

Southern California's San Andreas and San Jacinto faults have reached their highest stress levels in 1,000 years, with researchers warning about potential large earthquakes and the Cajon Pass acting as an 'earthquake gate' that could enable simultaneous ruptures.

• San Andreas Fault reached highest stress level in 1,000 years
• San Jacinto Fault also in critically loaded state
• Cajon Pass may allow simultaneous rupture of both faults
• Researchers can't predict exact timing of next earthquake