San Jacinto Fault

strike-slip — 210 km

VERY HIGH RISK

The San Jacinto Fault is one of the most seismically active faults in Southern California. It branches off the San Andreas Fault and has produced more M6+ earthquakes than any other fault in the region over the past century.

Type

strike slip

Length

210 km

Countries

1

Cities at Risk

3

Risk Assessment

31% chance of M6.7+ before 2043

Last Major Earthquake

M6.8 — San Jacinto, California (1918-04-21)

Affected Countries

United States

Cities Near This Fault

Riverside

Pop. 314,998

San Bernardino

Pop. 222,101

Palm Springs

Pop. 48,518

Data: USGS Earthquake Hazards Program