The briefing
Researchers report that Southern California’s major faults are at their highest stress levels in 1,000 years. The study suggests the Cajon Pass, where the San Andreas and San Jacinto faults meet, may act as an “earthquake gate” that can govern whether ruptures jump between fault systems, a pattern seen before some of the region’s largest quakes.
Original headline
Scientists discover an earthquake gate as California faults reach their highest stress levels in 1,000 years