QuakeScout

San Jacinto Fault

strike-slip210 km

strike slip

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

Linked Cities

3

Last Major Earthquake

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

Affected Countries

Cities Near This Fault

General tectonic context only—not a site-specific hazard assessment. Live event data: USGS Earthquake Hazards Program.