How often do earthquakes happen in Los Angeles?

Within 50 miles of Los Angeles County, the catalog lists 338 earthquakes of magnitude 4 or more since 1973, about 6.4 a year. The largest since 1900 is magnitude 7.5, on July 21, 1952.

Magnitude 3 or more by year

Earthquakes of magnitude 3+ within 50 miles of Los Angeles County

Earthquakes of magnitude 3+ within 50 miles of Los Angeles County 1973: 54 1974: 38 1975: 38 1976: 29 1977: 27 1978: 39 1979: 42 1980: 27 1981: 50 1982: 33 1983: 23 1984: 56 1985: 42 1986: 119 1987: 96 1988: 92 1989: 92 1990: 69 1991: 43 1992: 422 1993: 61 1994: 455 455 1995: 61 1996: 39 1997: 77 1998: 63 1999: 56 2000: 26 2001: 38 2002: 25 2003: 60 2004: 37 2005: 50 2006: 17 2007: 35 2008: 38 2009: 45 2010: 33 2011: 29 2012: 30 2013: 19 2014: 57 2015: 31 2016: 23 2017: 33 2018: 31 2019: 49 2020: 33 2021: 29 2022: 27 2023: 45 2024: 80 2025: 49 19731978198319881993199820032008201320182023

The largest

The strongest 150 of 850 listed since 1900.

Largest earthquakes within 50 miles of Los Angeles County
Jul 21, 19527.511.3The 1952 Kern County, California Earthquake
Jan 17, 19946.70.0Northridge, California, earthquake
Apr 21, 19186.747.0The 1918 San Jacinto, California Earthquake
Feb 9, 19716.60.01971 San Fernando Earthquake, California
Mar 10, 19336.410.2The 1933 Long Beach, California Earthquake
Jun 28, 19926.347.2The 1992 Big Bear, California Earthquake
Jul 22, 19236.226.13 km SE of San Bernardino, California
Oct 22, 19166.05.7Tejon Pass, California
May 15, 19106.027.8The 1910 Lake Elsinore, California Earthquake
Jan 17, 19945.90.01km ENE of Granada Hills, California
Oct 1, 19875.90.0The 1987 Whittier Narrows, California Earthquake
Jun 28, 19915.80.0The 1991 Sierra Madre, California Earthquake
Feb 9, 19715.80.010km SSW of Agua Dulce, CA
Feb 9, 19715.80.010km SSW of Agua Dulce, CA
Jul 21, 19525.814.513km WNW of Grapevine, CA
Dec 25, 19515.87.211km NNE of San Clemente Is. (SE tip), CA
Dec 23, 19055.833.5Near Bakersfield, California
Jul 11, 19925.735.012km NW of California City, California
Jul 29, 19525.737.211km N of Lamont, CA
Oct 16, 19995.634.87km ENE of Running Springs, CA
Jan 17, 19945.64.27km NNE of Simi Valley, California
Jul 31, 19525.636.014km NNW of Tehachapi, CA
Jul 25, 19525.640.119km N of Tehachapi, CA
Jun 28, 19925.546.211km SSE of Big Bear Lake, California
Feb 28, 19905.50.0The 1990 Upland, California Earthquake
Jul 13, 19865.529.7The 1986 Oceanside, California Earthquake
Sep 4, 19815.530.211km NNW of Santa Barbara Is., CA
Aug 22, 19525.537.0The 1952 Bakersfield, California Earthquake
Jul 25, 19525.541.922km N of Tehachapi, CA
Jul 23, 19525.524.26km SSE of Arvin, CA
Jul 23, 19525.512.113km ENE of Grapevine, CA
Jun 30, 19415.539.7The 1941 Santa Barbara, California Earthquake
Jun 29, 19265.540.810 km NE of Toro Canyon, California
Feb 18, 19265.532.030 km SW of Channel Islands Beach, California
Oct 22, 19165.510.1Southwest of Tejon Pass, California
Jul 29, 20085.41.05km S of Chino Hills, CA
Jun 10, 19885.410.716km NE of Lebec, CA
Jan 12, 19545.414.813km WNW of Grapevine, CA
Jul 22, 19525.441.625km SSW of Bodfish, CA
Jul 21, 19525.413.99km NW of Grapevine, CA
Apr 5, 20185.347.931km SW of Santa Cruz Is. (E end), CA
Mar 18, 19975.349.220km ENE of Barstow, California
Dec 3, 19925.343.110km SE of Lucerne Valley, California
Nov 27, 19925.342.710km NNW of Big Bear City, California
Jun 28, 19925.342.01km N of Big Bear Lake, California
Feb 21, 19735.37.6The 1973 Point Mugu, California Earthquake
Feb 9, 19715.30.010km SSW of Agua Dulce, CA
Aug 28, 19435.338.86km WNW of Big Bear Lake, CA
Mar 10, 19335.310.57km W of Newport Beach, CA
Aug 4, 19275.33.72 km SSW of Santa Monica, California
Sep 19, 19075.331.8Near San Bernardino, California
Aug 6, 20245.223.124 km SW of Lamont, CA
Mar 20, 19945.20.03km WNW of Panorama City, California
Jan 17, 19945.26.810km ESE of Piru, California
Jan 17, 19945.20.09km N of Chatsworth, California
May 27, 19935.225.821km SW of Lamont, California
Aug 17, 19925.245.27km SE of Big Bear Lake, California
Oct 4, 19875.20.02km WSW of Rosemead, CA
Jan 1, 19795.28.613km S of Malibu Beach, CA
Sep 12, 19705.26.83km W of Lytle Creek, CA
Jul 29, 19525.240.518km NNE of Lamont, CA
Jul 21, 19525.220.911km SSE of Arvin, CA
Jul 21, 19525.228.85km SW of Tehachapi, CA
Jul 21, 19525.214.012km NE of Grapevine, CA
Jul 21, 19525.213.99km NW of Grapevine, CA
Feb 24, 19485.222.842km SSW of San Clemente Is. (SE tip), CA
May 31, 19385.223.18km ENE of Trabuco Canyon, CA
Aug 30, 19305.25.71 km SW of Las Flores, California
Jan 15, 19305.243.14 km SSE of Big Bear Lake, California
Apr 18, 19285.220.69 km SW of Channel Islands Beach, California
Aug 20, 20235.127.07 km SE of Ojai, CA
Mar 28, 20145.13.62km NW of Brea, CA
Apr 26, 19975.10.012km ESE of Piru, California
Jan 29, 19945.10.06km NNE of Chatsworth, California
Jan 19, 19945.10.010km SSW of Valencia, California
Jan 19, 19945.17.48km ESE of Piru, California
Aug 13, 19785.146.7The 1978 Santa Barbara, California Earthquake
Aug 6, 19735.131.09km SSE of Santa Cruz Is. (E end), CA
Jul 23, 19525.112.56km N of Grapevine, CA
Jul 22, 19525.140.726km NE of Arvin, CA
Nov 14, 19415.10.0The 1941 Torrance-Gardena, California Earthquakes (Second Event)
Sep 21, 19415.12.62km NNE of Frazier Park, CA
Jan 15, 19305.143.14 km SSE of Big Bear Lake, California
Oct 16, 20055.027.644km SSE of San Clemente Is. (SE tip), CA
Sep 29, 20045.041.625km SSW of Bodfish, California
Jun 15, 20045.041.867km SE of San Clemente Is. (SE tip), CA
Feb 22, 20035.045.86km N of Big Bear City, CA
Jun 26, 19955.00.011km SW of Valencia, California
Jun 28, 19925.041.97km S of Big Bear Lake, CA
Jan 18, 19895.09.613km S of Las Flores, CA
Dec 3, 19885.00.01km SSE of Pasadena, CA
Jul 4, 19685.044.920km ENE of Santa Cruz Is. (NW end), CA
Oct 28, 19625.044.710km NNW of Big Bear City, CA
Nov 14, 19615.010.35km W of Grapevine, CA
May 23, 19545.012.07km WNW of Grapevine, CA
Jan 27, 19545.027.112km W of Tehachapi, CA
Aug 7, 19525.019.319km NW of Grapevine, CA
Nov 18, 19475.049.99km SSE of San Nicolas Is., CA
Mar 11, 19335.00.02 km NE of Carson, California
Mar 10, 19335.06.22km ENE of Westminster, CA
Aug 5, 19305.040.810 km NE of Toro Canyon, California
Feb 16, 19195.013.97 km SSW of Mettler, California
Jun 6, 19185.044.64 km WNW of San Jacinto, California
May 12, 19105.027.8Near Lake Elsinore, California
Apr 10, 19105.027.8Near Lake Elsinore, California
Jan 6, 19055.047.930 km ENE of Bakersfield, California
Jun 16, 20054.939.74km NE of Yucaipa, CA
Apr 27, 19974.90.011km SW of Valencia, California
Jan 17, 19944.90.03km N of Northridge, California
Jul 8, 19924.946.33km SSE of Big Bear City, California
Aug 1, 19524.98.37km SW of Grapevine, CA
Jul 25, 19524.940.421km N of Tehachapi, CA
Jul 21, 19524.930.412km WNW of Tehachapi, CA
Jul 21, 19524.917.416km S of Arvin, CA
Jul 21, 19524.913.97 km SSW of Mettler, California
Sep 27, 19464.949.81km NE of Banning, CA
Mar 11, 19334.90.00 km SW of Gardena, California
Mar 11, 19334.96.51km NNW of Huntington Beach, CA
Mar 10, 19334.94.11km WSW of Westminster, CA
Mar 10, 19334.90.82km ENE of Seal Beach, CA
Jun 21, 19204.93.7The 1920 Inglewood, California Earthquake
Sep 3, 20024.82.34km NE of Yorba Linda, CA
Oct 26, 19984.845.97km N of Big Bear City, California
Aug 16, 19984.842.714km S of Big Bear Lake, California
Jun 19, 19974.817.227km SE of San Clemente Is. (SE tip), California
Apr 6, 19944.832.22km SE of Running Springs, California
Jan 18, 19944.80.06km SW of Santa Clarita, California
Jan 17, 19944.80.06km NE of Chatsworth, California
Jan 17, 19944.80.010km SSW of Valencia, California
Jan 17, 19944.80.05km N of Granada Hills, California
Aug 5, 19924.842.011km NE of Barstow, California
Jun 12, 19894.80.01km WSW of East Los Angeles, CA
Apr 7, 19894.814.62km E of Newport Beach, CA
Nov 19, 19884.816.518km SW of Newport Beach, CA
Oct 1, 19874.80.02km E of Monterey Park, CA
Oct 23, 19814.824.314km NNE of Santa Barbara Is., CA
Jun 29, 19794.843.83km E of Big Bear Lake, CA
Jan 12, 19754.820.332km ESE of San Clemente Is. (SE tip), CA
Feb 9, 19714.80.04km NE of Pacoima, CA
Oct 24, 19694.833.618km SSW of Santa Barbara Is., CA
Mar 18, 19574.815.81km WSW of Port Hueneme, CA
Aug 26, 19544.836.318km S of Santa Cruz Is. (E end), CA
May 24, 19534.813.711km WNW of Grapevine, CA
Aug 23, 19524.80.05km NNE of Acton, CA
Jul 29, 19524.829.515km WNW of Tehachapi, CA
Jul 23, 19524.836.016km NNW of Tehachapi, CA
Jul 22, 19524.840.025km NNW of Tehachapi, CA
Jul 21, 19524.819.712km SSE of Arvin, CA
Oct 2, 19334.80.02km N of Signal Hill, CA
Mar 14, 19334.86.52km WSW of Huntington Beach, CA