Santa Barbara Arroyo Palmdale Santa Ana Flt. Parida Flt. Mesa Rincon Creek Flt. San Andreas Fault Red Mountain Flt. Holser Flt. San Gabriel Fault Zone Llano Fault San Cayetano Flt. Explanation Oak Ridge Fault 34.5o Ventura Fault Historic Fault - Big Mountain Flt. Ruptured Last Santa Susana Flt. 200 Years Ventura Oak Ridge Fault Holocene Fault Simi Fault Northridge Blind Thrust Simi Valley Northridge Hills Fault Late Quaternary Mission Hills Flt.San Fernando Fault San Gabriel Fault Zone Fault - Ruptured Last 700,000 Years Oxnard Vasquez Creek Fault (Dunsmore Seg) Los Angeles County San Bernadino County Quaternary Fault - Chatsworth Fault Northridge Ruptured Bailey Fault Thousand Oaks Verdugo Fault Last 1.6 Million Years Sycamore Canyon Fault Sierra Madre Fault Zone Santa Cruz Boney Mountain Fault Island 34.25o Pre-Quaternary Fault Santa Monica Mountains Thrust Eagle Rock Fault (Sierra Madre Seg) Ventura County Sawpit Canyon Fault Anacapa Los Angeles County Islands Santa Cruz Island Fault Pasadena Blind Thrust Fault Hollywood Fault Sierra Madre Fault Zone (Surface Projection); Malibu (Los AngelesRaymond Seg) Fault San Antonio Flt. Cucamonga Fault Open barbs represent Malibu Coast Fault (Duarte Seg) West LA Blind Thrust the upper edge of blind thrust fault ramp; barbs Los Angeles Monterey Park Indian Hills Fault point downdip Santa Monica Fault Newport Inglewood Fault Overland Flt. Baldwin Park ? Red Hills Fault Santa Monica Las Cienegas ? San Jose Fault Fault Pomona Fault locations based on; USGS (1988); Anacapa-Dume Fault (LA East LA (Puente Hills Seg) Segment) (Baldwin Hills Seg) Blind Thrust Ziony and Jones (1989); Wright (1991); Inglewood Central Ave. Fault Jennings (1994); Dolan, et al. (1995); Santa Cruz-Santa Catalina Ridge Fault Zone Puente Hills Charnock Fault Shaw and Shearer (1999) and Thrust Whittier Fault SCEC (1999). (Santa Fe Springs o (Central Seg) Segment) 34 L A County San Bernadino County (Coyote Hills Segment) Orange County Norwalk Fault Chino FaultSan Bernadino County Riverside County Los Alamitos Fault Torrance Palos Verdes Fault San Pedro Basin Fault Zone Peralta Hills Fault Anaheim Riverside County Long Beach El Modeno Fault Orange County Cabrillo Fault Elsinore Fault Zone Newport Inglewood Fault (Santa Ana Seg) Santa Ana Palos Verdes Fault Zone 33.75o San Clemente Fault Zone Huntington Beach San Joaquin Hills Thrust (?) Santa Barbara Newport Beach Island Mission Viejo Newport-Inglewood/RoseLaguna Beach Source: Bing Yen & Associates, Inc, Canyon Fault February 2000 Santa Catalina Island 33.50o Dana Point North Figure SCS-2 0 9 18 Miles Earthquake Faults Monterey Park General Plan 9 July 2001.