The Fort Tejon earthquake occurred on January 9, 1857, with an estimated magnitude of 7.9. It ruptured the San Andreas Fault for a length of 362 kilometers (225 miles), between Parkfield and San Bernardino. Displacement along the fault was 9 meters (30 feet). The epicenter of this earthquake is thought to have been located between Parkfield and Cholame.

Only two fatalities were recorded as a result of this earthquake.

External links

• USGS Earthquake Hazards Program - 1857 Fort Tejon Earthquake (http://quake.wr.usgs.gov/research/parkfield/history/1857.html)
• Southern California Earthquake Data Center - 1857 Fort Tejon Earthquake (http://www.data.scec.org/chrono_index/forttejo.html)