List of earthquakes in California

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The San Andreas Fault system is the source of most of California's earthquakes

Earthquakes in California are common occurrences since the state is located on the San Andreas Fault, which cuts across California and forms the tectonic boundary between the Pacific and the North American Plate. There are many thousands of small earthquakes per year, most of them so small that they are not felt. California's complex landscape can be attributed to the network of faulting that runs through the state. The earliest reported earthquake in California was felt in 1769 by the Portola expedition about 30 miles southeast of Los Angeles, probably near the San Andreas Fault.[1][2]

Summary[edit]

California has over 100 active faults throughout the state which are known to produce large earthquakes. The most active of these is the San Jacinto Fault Zone in Southern California, which has produced large events on a regular basis throughout recent history. The Mendocino Triple Junction located offshore of Northern California is also very active, producing many earthquakes above M6 throughout history.[3] Northern California is also subject to megathrust earthquakes on the Cascadia subduction zone (extending north from Mendocino), such as the 1700 Cascadia earthquake, magnitude of approximately 9. The town of Parkfield in central California is located on a section of the San Andreas Fault that produces an earthquake of about M6 every 20–30 years on average in 1857, 1881, 1901, 1922, 1934, 1966 and 2004.[4]

The largest recorded earthquake in California was the 1857 Fort Tejon earthquake, with an estimated magnitude of 7.9. This earthquake ruptured the San Andreas Fault from Parkfield to Wrightwood, a distance of 225 miles (350 km). The most destructive earthquake to date was the 7.8 magnitude 1906 San Francisco earthquake, when more than 3000 people perished in the earthquake and the fires that followed. The 1906 quake ruptured the northern segment of the San Andreas Fault for 296 miles (477 km), from San Juan Bautista to near Cape Mendocino in the north.[5] More recently, the 1989 Loma Prieta earthquake, which registered 6.9 and affected the San Francisco bay area,[6] and the 1994 Northridge earthquake which registered 6.7 and hit the Greater Los Angeles area,[7] caused widespread damage and deaths in their respective regions.

Earthquakes[edit]

Note: Listed items include earthquakes with epicenters that are offshore, in an adjacent U.S. state, or in Baja California, Mexico. Stated fatalities are not limited to California.

Year Date Time (UTC) Time
local
Area Mag Deaths Coordinates Comments Refs
1769 July 28 21:00 13:00 Santa Ana River 6.0 33°54′N 117°48′W / 33.9°N 117.8°W / 33.9; -117.8 Portola Expedition earthquake. Four strong shocks felt [8]
1800 November 22 21:30 13:30 San Diego 6.5 33°00′N 117°18′W / 33.0°N 117.3°W / 33.0; -117.3 Building damage in San Diego and San Juan Capistrano [8]
1812 December 8 15:00 07:00 Wrightwood 6.9 40 34°22′N 117°39′W / 34.37°N 117.65°W / 34.37; -117.65 1812 Wrightwood earthquake [9]
1812 December 21 19:00 11:00 Santa Barbara 7.1 1 34°12′N 119°54′W / 34.2°N 119.9°W / 34.2; -119.9 1812 Santa Barbara earthquake [9]
1838 June San Francisco Peninsula 7.0 37°36′N 122°24′W / 37.6°N 122.4°W / 37.6; -122.4 1838 San Francisco earthquake [9]
1857 January 9 16:24 08:24 Parkfield-Wrightwood 7.9 1 35°42′N 120°18′W / 35.7°N 120.3°W / 35.7; -120.3 1857 Fort Tejon earthquake [9]
1865 October 8 20:46 12:46 Santa Cruz Mountains 6.3 37°12′N 121°54′W / 37.2°N 121.9°W / 37.2; -121.9 1865 San Francisco earthquake [10]
1868 October 21 15:53 07:53 Hayward 6.8 30 37°42′N 122°06′W / 37.70°N 122.10°W / 37.70; -122.10 1868 Hayward earthquake [10]
1872 March 26 10:30 02:30 Owens Valley 7.3 27 36°42′N 118°06′W / 36.7°N 118.1°W / 36.7; -118.1 1872 Lone Pine earthquake [11]
1873 November 23 05:00 Cape Mendocino 6.7 42°00′N 124°00′W / 42.0°N 124.0°W / 42.0; -124.0 [12]
1892 February 23 07:20 23:20 Imperial Valley 7.2 32°33′N 115°38′W / 32.55°N 115.63°W / 32.55; -115.63 1892 Laguna Salada earthquake [13]
1892 April 19 10:50 02:50 Vacaville 6.4 1 38°24′N 122°00′W / 38.4°N 122.0°W / 38.4; -122.0 Doublet earthquake [14]
1892 April 21 17:43 09:43 Winters 6.2 38°30′N 121°54′W / 38.5°N 121.9°W / 38.5; -121.9 [14]
1898 March 31 07:43 Mare Island 6.2 38°12′N 122°24′W / 38.2°N 122.4°W / 38.2; -122.4 [15]
1898 April 15 07:07 Greenwood 6.9 39°12′N 123°48′W / 39.2°N 123.8°W / 39.2; -123.8 [15]
1899 December 25 12:25 04:25 San Jacinto 6.7 6 33°48′N 117°00′W / 33.8°N 117.0°W / 33.8; -117.0 1899 San Jacinto earthquake [16]
1906 April 18 13:12 05:12 San Francisco 7.8 700–3000 37°42′N 122°30′W / 37.7°N 122.5°W / 37.7; -122.5 1906 San Francisco earthquake [17]
1911 July 1 22:00 Coyote 6.6 37°15′N 121°45′W / 37.25°N 121.75°W / 37.25; -121.75 1911 Calaveras earthquake [18][19]
1915 June 22 (local)
June 23 (UTC)
03:59 Imperial Valley 5.5 6 32°48′N 115°30′W / 32.8°N 115.50°W / 32.8; -115.50 Doublet earthquake [20]
1915 June 22 (local)
June 23 (UTC)
04:56 Imperial Valley 5.5 32°48′N 115°30′W / 32.8°N 115.50°W / 32.8; -115.50 [20]
1918 April 21 22:32 14:32 San Jacinto 6.7 1 33°45′N 117°00′W / 33.75°N 117.0°W / 33.75; -117.0 1918 San Jacinto earthquake [21]
1922 January 31 13:17 Cape Mendocino 7.2 40°42′N 125°33′W / 40.7°N 125.55°W / 40.7; -125.55 [22]
1923 January 22 09:04 01:04 Cape Mendocino 7.1 40°29′N 125°19′W / 40.49°N 125.32°W / 40.49; -125.32 1923 Cape Mendocino earthquake [22]
1925 June 29 14:44 06:44 Santa Barbara 6.8 13 34°18′N 119°48′W / 34.30°N 119.80°W / 34.30; -119.80 1925 Santa Barbara earthquake [23]
1927 Nov 4 13:51 Point Arguello 7.0 34°55′N 121°02′W / 34.92°N 121.03°W / 34.92; -121.03 [24]
1932 June 6 08:44 00:44 Cape Mendocino 6.4 1 40°45′N 124°30′W / 40.75°N 124.50°W / 40.75; -124.50 1932 Eureka earthquake [25]
1933 March 10 (local)
March 11 (UTC)
01:54 17:54 Long Beach 6.3 115 33°36′N 118°00′W / 33.6°N 118.0°W / 33.6; -118.0 1933 Long Beach earthquake [26]
1937 March 25 16:49 08:49 Anza, Hemet, and Palm Springs 5.6 33°24′N 116°16′W / 33.4°N 116.26°W / 33.4; -116.26 [27]
1940 May 18 (local)
May 19 (UTC)
04:36 20:36 Imperial Valley 6.9 9 32°43′59″N 115°30′00″W / 32.733°N 115.5°W / 32.733; -115.5 1940 El Centro earthquake [28]
1942 October 21 16:22 09:22 Fish Creek Mountains 6.6 32°58′N 116°00′W / 32.97°N 116.00°W / 32.97; -116.00 1942 Fish Creek Mountains earthquake [29]
1947 April 10 15:58 07:58 Newberry Springs 6.5 34°59′N 116°33′W / 34.98°N 116.55°W / 34.98; -116.55 1947 Manix earthquake [30]
1948 December 4 23:43 15:43 near Desert Hot Springs 6.5 33°56′N 116°23′W / 33.93°N 116.38°W / 33.93; -116.38 1948 Desert Hot Springs earthquake [31]
1952 July 21 11:52 04:52 Kern County 7.3 12 35°00′N 119°01′W / 35.00°N 119.02°W / 35.00; -119.02 1952 Kern County earthquake [32]
1954 March 19 09:54 01:54 west of Salton City 6.4 33°17′N 116°11′W / 33.28°N 116.18°W / 33.28; -116.18 1954 Arroyo Salada earthquake [33]
1954 December 21 19:56 11:56 Cape Mendocino 6.5 1 40°47′N 124°10′W / 40.78°N 124.17°W / 40.78; -124.17 1954 Eureka earthquake [34]
1957 March 22 19:44 11:44 Daly City 5.3 1 37°40′N 122°29′W / 37.67°N 122.48°W / 37.67; -122.48 1957 Daly City earthquake [35]
1968 April 8 (local)
April 9 (UTC)
02:28 18:28 Ocotillo Wells 6.5 33°11′N 116°08′W / 33.19°N 116.13°W / 33.19; -116.13 1968 Borrego Mountain earthquake [36]
1969 October 1 (local)
October 2 (UTC)
21:56 04:56 Santa Rosa, California 5.6 1 38°28′N 122°41′W / 38.47°N 122.69°W / 38.47; -122.69 1969 Santa Rosa earthquakes [37]
1969 October 1 (local)
October 2 (UTC)
23:19 06:19 Santa Rosa, California 5.7 38°28′N 122°41′W / 38.46°N 122.69°W / 38.46; -122.69 1969 Santa Rosa earthquakes [37]
1971 February 9 14:01 06:01 San Fernando 6.4 65 34°24′N 118°24′W / 34.4°N 118.4°W / 34.4; -118.4 1971 San Fernando earthquake [38]
1979 October 15 23:16 16:16 Imperial Valley 6.5 32°38′N 115°19′W / 32.63°N 115.32°W / 32.63; -115.32 1979 Imperial Valley earthquake [39]
1980 January 24 19:00 11:00 Livermore 5.8 37°52′N 121°49′W / 37.86°N 121.82°W / 37.86; -121.82 1980 Livermore earthquake [40]
1980 May 25-27 16:33, 16:49, 19:44, 14:40 09:33, 09:49, 12:44, 07:40 Mammoth Lakes 6.2, 5.9, 5.9, 6.0 37°35′N 118°51′W / 37.59°N 118.85°W / 37.59; -118.85, 37°29′N 118°50′W / 37.49°N 118.83°W / 37.49; -118.83 1980 Mammoth Lakes earthquake swarm [41]
1980 November 8 10:27 02:27 Cape Mendocino 7.3 41°07′N 124°18′W / 41.11°N 124.3°W / 41.11; -124.3 1980 Humboldt County earthquake [42]
1983 May 2 22:42 15:42 Coalinga 6.4 1 36°14′N 120°19′W / 36.23°N 120.31°W / 36.23; -120.31 1983 Coalinga earthquake [23]
1984 April 24 21:15 13:15 Morgan Hill 6.2 37°19′N 121°41′W / 37.31°N 121.68°W / 37.31; -121.68 1984 Morgan Hill earthquake [23]
1986 July 8 09:20 02:20 North Palm Springs 6.0 34°00′N 116°36′W / 34.0°N 116.60°W / 34.0; -116.60 1986 North Palm Springs earthquake [43]
1986 July 13 13:47 06:47 Oceanside 5.8 1 33°01′N 117°47′W / 33.02°N 117.79°W / 33.02; -117.79 1986 Oceanside earthquake [43]
1986 July 21 14:42 07:42 Chalfant Valley 6.2 37°32′N 118°27′W / 37.54°N 118.45°W / 37.54; -118.45 1986 Chalfant Valley earthquake [43]
1987 October 1 14:42 07:42 Whittier Narrows 5.9 8 34°04′N 118°05′W / 34.06°N 118.08°W / 34.06; -118.08 1987 Whittier Narrows earthquake [44]
1987 November 23 (local)
November 24 (UTC)
01:54 17:54 Elmore Desert Ranch 6.0 33°05′N 115°47′W / 33.08°N 115.78°W / 33.08; -115.78 1987 Elmore Ranch earthquake (related to the Superstition Hills earthquake) [45]
1987 November 24 14:15 06:15 Superstition Hills 6.5 33°01′N 115°50′W / 33.01°N 115.84°W / 33.01; -115.84 1987 Superstition Hills earthquake [45]
1989 August 8 08:13 01:13 Santa Cruz Mountains 5.4 1 37°08′N 121°57′W / 37.13°N 121.95°W / 37.13; -121.95 1989 Lake Elsman earthquake [46]
1989 October 17 (local)
October 18 (UTC)
00:04 17:04 Santa Cruz Mountains 6.9 63 37°00′N 121°54′W / 37.0°N 121.9°W / 37.0; -121.9 1989 Loma Prieta earthquake [47]
1991 June 28 14:43 07:43 Sierra Madre 5.6 2 34°16′N 118°00′W / 34.26°N 118.00°W / 34.26; -118.00 1991 Sierra Madre earthquake [48][49]
1992 April 22 (local)
April 23 (UTC)
04:50 21:50 Joshua Tree 6.1 33°58′N 116°19′W / 33.96°N 116.32°W / 33.96; -116.32 1992 Joshua Tree earthquake [50]
1992 April 25 18:06 11:06 Cape Mendocino 7.2 40°20′N 124°14′W / 40.33°N 124.23°W / 40.33; -124.23 1992 Cape Mendocino earthquakes [23]
1992 June 28 11:57 04:57 Landers 7.3 3 34°11′N 116°32′W / 34.18°N 116.53°W / 34.18; -116.53 1992 Landers earthquake [51]
1992 June 28 15:05 08:05 Big Bear 6.5 34°17′N 116°49′W / 34.29°N 116.82°W / 34.29; -116.82 1992 Big Bear earthquake [52]
1993 May 17 23:20 16:20 Eureka Valley 6.0 37°08′46″N 117°49′26″W / 37.146°N 117.824°W / 37.146; -117.824 1993 Eureka Valley earthquake [53]
1994 January 17 12:30 04:30 Northridge 6.7 60 34°12′N 118°30′W / 34.2°N 118.5°W / 34.2; -118.5 1994 Northridge earthquake [47]
1999 October 16 09:46 02:46 Hector Mine 7.2 34°31′N 116°26′W / 34.51°N 116.43°W / 34.51; -116.43 1999 Hector Mine earthquake [54]
2000 September 3 08:36 01:36 Yountville 5.2 38°23′N 122°25′W / 38.38°N 122.41°W / 38.38; -122.41 2000 Yountville earthquake [55][56]
2003 December 22 19:15 11:15 San Simeon 6.6 2 35°43′N 121°06′W / 35.71°N 121.10°W / 35.71; -121.10 2003 San Simeon earthquake [57]
2004 September 28 17:15 10:15 Parkfield 6.0 35°49′N 120°22′W / 35.82°N 120.37°W / 35.82; -120.37 2004 Parkfield earthquake [58]
2005 June 12 15:41 08:41 Anza 5.2 33°32′N 116°35′W / 33.53°N 116.58°W / 33.53; -116.58 2005 Anza earthquake [59]
2005 June 14 (PDT)
June 15 (UTC)
02:50 19:50 Cape Mendocino 7.2 41°17′N 125°59′W / 41.28°N 125.98°W / 41.28; -125.98 A tsunami warning and a 26 cm (10 in) wave at Crescent City. 6,000 (est) evacuated [60][61][62][63]
2007 October 30 (local)
October 31 (UTC)
03:04 20:04 Alum Rock 5.6 37°26′N 121°46′W / 37.43°N 121.77°W / 37.43; -121.77 2007 Alum Rock earthquake [64]
2008 July 29 18:42 11:42 Chino Hills 5.4 33°58′N 117°46′W / 33.96°N 117.76°W / 33.96; -117.76 2008 Chino Hills earthquake [65]
2009 May 17 (PDT)
May 18 (UTC)
03:39 20:39 Inglewood 4.7 33°56′N 118°21′W / 33.94°N 118.35°W / 33.94; -118.35 2009 Inglewood earthquake [66]
2010 January 9 (PST)
January 10 (UTC)
00:27 16:27 Cape Mendocino 6.5 40°39′N 124°46′W / 40.65°N 124.76°W / 40.65; -124.76 2010 Eureka earthquake [67]
2010 March 16 11:04 04:04 Pico Rivera 4.4 33°59′31″N 118°04′55″W / 33.992°N 118.082°W / 33.992; -118.082 2010 Pico Rivera earthquake [68]
2010 April 4 22:40 15:40 northern Baja California 7.2 3 32°07′41″N 115°18′11″W / 32.128°N 115.303°W / 32.128; -115.303 2010 El Mayor-Cucapah earthquake [69]
2010 June 14 (PDT)
June 15 (UTC)
04:26 21:26 Ocotillo 5.7 32°41′53″N 115°55′26″W / 32.698°N 115.924°W / 32.698; -115.924 2010 El Mayor-Cucapah aftershock [70]
2010 July 7 23:53 16:53 Borrego Springs 5.4 33°25′N 116°29′W / 33.42°N 116.48°W / 33.42; -116.48 2010 Borrego Springs earthquake [71]
2012 August 26 04:30 Brawley 4.9, 5.3, 5.4 2012 Brawley earthquake Swarm [72]
2012 December 14 10:36 02:36 Off the southwest coast of Catalina Island 6.3 31°12′N 119°36′W / 31.2°N 119.6°W / 31.2; -119.6 2012 Avalon earthquake [73]
2013 May 23 (PDT)
May 24 (UTC)
03:47 20:47 near Lake Almanor, Greenville 5.7 40°11′24″N 121°03′40″W / 40.190°N 121.061°W / 40.190; -121.061 (swarm) USGS
2014 March 9 (PDT)
March 10 (UTC)
05:18 21:18 Cape Mendocino 6.8 40°49′16″N 125°07′41″W / 40.821°N 125.128°W / 40.821; -125.128 [74]
2014 March 17 (PDT)
March 17 (UTC)
13:25 06:25 Westwood, Los Angeles 4.4 34°08′06″N 118°29′10″W / 34.135°N 118.486°W / 34.135; -118.486 [75]
2014 March 28 (PDT)
March 29 (UTC)
04:09 21:09 La Habra 5.1 33°55′08″N 117°56′38″W / 33.919°N 117.944°W / 33.919; -117.944 [76]
2014 August 24 10:20 03:20 6km NW of American Canyon, California 6.0 1 38°12′50″N 122°19′08″W / 38.214°N 122.319°W / 38.214; -122.319 2014 South Napa earthquake [77][78]

See also[edit]

References[edit]

  1. ^ "Earthquake History for California". Info from USGS. Retrieved 2009-03-17. 
  2. ^ "Earthquake Facts". data from USGS. Retrieved 2009-03-18. 
  3. ^ Mendocino Triple Junction Offshore Northern California
  4. ^ The Parkfield, California, Earthquake Experiment USGS
  5. ^ The Great 1906 San Francisco Earthquake USGS
  6. ^ "October 17, 1989 Loma Prieta Earthquake". data from USGS. Retrieved 2009-03-18. 
  7. ^ "January 17, 1994 Northridge, CA Earthquake". Retrieved 2009-03-18. 
  8. ^ a b Stover & Coffman 1993, pp. 72, 99
  9. ^ a b c d Stover & Coffman 1993, pp. 72, 100
  10. ^ a b Stover & Coffman 1993, pp. 73, 104
  11. ^ Stover & Coffman 1993, pp. 73, 105–107
  12. ^ Stover & Coffman 1993, pp. 73, 108
  13. ^ Stover & Coffman 1993, pp. 74, 110
  14. ^ a b Stover & Coffman 1993, pp. 74, 111, 112
  15. ^ a b Stover & Coffman 1993, pp. 74, 112
  16. ^ Stover & Coffman 1993, pp. 74, 113
  17. ^ Utsu 2002, p. 702
  18. ^ Stover & Coffman 1993, pp. 75, 120
  19. ^ Wood, H. O. (1912). "On the region of origin of the Central Californian earthquakes of July, August and September, 1911". Bulletin of the Seismological Society of America (Seismological Society of America) 2 (1): 31–39. 
  20. ^ a b Stover & Coffman 1993, pp. 76, 121
  21. ^ Stover & Coffman 1993, pp. 76, 122
  22. ^ a b Engdahl & Vallaseñor 2002, p. 674
  23. ^ a b c d Toppozada & Branum 2004, p. 511
  24. ^ Engdahl & Vallaseñor 2002, p. 675
  25. ^ Stover & Coffman 1993, pp. 78, 129, 130
  26. ^ Utsu 2002, p. 705
  27. ^ Stover & Coffman 1993, pp. 80, 134
  28. ^ Stover & Coffman 1993, pp. 81, 135, 136
  29. ^ Stover & Coffman 1993, pp. 82, 137
  30. ^ Stover & Coffman 1993, pp. 82, 138
  31. ^ Richter, C. F.; Allen, C. R.; Nordquist, J. M. (1958), "The Desert Hot Springs earthquakes and their tectonic environment", Bulletin of the Seismological Society of America (Seismological Society of America) 48: 315 
  32. ^ Bawden, G. W. (2001), "Source parameters for the 1952 Kern County earthquake, California: A joint inversion of leveling and triangulation observations", Journal of Geophysical Research (American Geophysical Union) 106 (B1): 771, doi:10.1029/2000jb900315 
  33. ^ Stover & Coffman 1993, pp. 88, 137
  34. ^ Stover & Coffman 1993, pp. 88, 148
  35. ^ Stover & Coffman 1993, pp. 88, 150
  36. ^ Stover & Coffman 1993, pp. 91, 154
  37. ^ a b Stover & Coffman 1993, pp. 91, 156
  38. ^ Utsu 2002, p. 708
  39. ^ Stover & Coffman 1993, pp. 94, 166
  40. ^ Stover & Coffman 1993, pp. 94, 166, 167
  41. ^ Stover & Coffman 1993, pp. 95, 168
  42. ^ Engdahl & Vallaseñor 2002, p. 683
  43. ^ a b c Pacheco, J.; Nabelek, J. (1988), "Source mechanisms of three moderate California earthquakes of July 1986", Bulletin of the Seismological Society of America (Seismological Society of America) 78 (6): 1908 
  44. ^ Stover & Coffman 1993, pp. 98, 178, 179
  45. ^ a b Stover & Coffman 1993, pp. 98, 179, 180
  46. ^ Stover & Coffman 1993, pp. 99, 180
  47. ^ a b Utsu 2002, p. 709
  48. ^ SCEDC - Sierra Madre Earthquake (1991)
  49. ^ Historic Earthquakes - Southern California USGS
  50. ^ SCEDC - Joshua Tree Earthquake (1992)
  51. ^ Engdahl & Vallaseñor 2002, p. 685
  52. ^ "M6.5 - Southern California (BETA)". USGS. 
  53. ^ "M6.0 - Central California (BETA) 1993-05-17 23:20:51 UTC". USGS. 
  54. ^ Engdahl & Vallaseñor 2002, p. 686
  55. ^ Miranda, E.; Aslani, H; Blume, J. A., Brief Report on the September 3, 2000 Yountville/Napa, California Earthquake, Pacific Earthquake Engineering Research Center 
  56. ^ http://earthquake.usgs.gov/earthquakes/states/events/2000_09_03.php USGS,
  57. ^ "Magnitude 6.6 - CENTRAL CALIFORNIA". USGS. 
  58. ^ Bakun, W. H.; Aagaard, B.; Dost, B.; Ellsworth, W. L.; Hardebeck, J. L.; Harris, R. A.; Ji, C.; Johnston, M. J. S.; Langbein, J.; Lienkaemper, J. J.; Michael, A. J.; Murray, J. R.; Nadeau, R. M.; Reasenberg, P. A.; Reichle, M. S.; Roeloffs, E. A.; Shakal, A.; Simpson, R. W.; Waldhauser, F. (2005), "Implications for prediction and hazard assessment from the 2004 Parkfield earthquake", Nature (Nature Publishing Group) 437: 969, doi:10.1038/nature04067 
  59. ^ CISN: M5.2 near Anza California Integrated Seismic Network
  60. ^ "Magnitude 7.2 - OFF THE COAST OF NORTHERN CALIFORNIA". USGS. 
  61. ^ Finz, Stacy; Fulbright, Leslie; Van Derbeken, Jaxon (June 15, 2005). "7.0 quake shakes up North Coast / Crescent City residents flee after tsunami warning". San Francisco Chronicle. 
  62. ^ http://neic.usgs.gov/neis/eq_depot/2005/eq_050615/neic_ziae_nr.html
  63. ^ http://soundwaves.usgs.gov/2005/07/research.html
  64. ^ "M5.6 - San Francisco Bay area, California (BETA)". USGS. 
  65. ^ Hauksson, E.; Felzer, K.; Given, D.; Giveon, M.; Hough, S.; Hutton, K.; Kanamori, H. (2008), "Preliminary report on the 29 July 2008 Mw 5.4 Chino Hills, Eastern Los Angeles Basin, California, earthquake sequence", Seismological Research Letters (Seismological Society of America) 79 (6): 857, doi:10.1785/gssrl.79.6.855 
  66. ^ "M4.7 - Greater Los Angeles area, California (BETA)". USGS. 
  67. ^ Magnitude 6.5 - OFFSHORE NORTHERN CALIFORNIA USGS
  68. ^ Magnitude 4.4 - GREATER LOS ANGELES AREA, CALIFORNIA USGS
  69. ^ "M7.2 - Baja California, Mexico (BETA)". USGS. 
  70. ^ "M5.8 - Southern California (BETA)". USGS. 
  71. ^ "Poster of the Southern California Earthquake of 07 July 2010 - Magnitude 5.4". USGS. 
  72. ^ Hauksson, E.; Stock, J.; Bilham, R.; Boese, M.; Chen, X.; Fielding, E. J.; Galetzka, J.; Hudnut, K. W.; Hutton, K.; Jones, L. M.; Kanamori, H.; Shearer, P. M.; Steidl, J.; Treiman, J.; Wei, S.; Yang, W. (2013), "Report on the August 2012 Brawley earthquake swarm in Imperial Valley, Southern California", Seismological Research Letters (Seismological Society of America) 84 (2): 177–189, doi:10.1785/0220120169 
  73. ^ "PAGER - M 6.3 - OFF THE WEST COAST OF BAJA CALIFORNIA". USGS. 
  74. ^ "M6.8 - 77km WNW of Ferndale, California". USGS. 
  75. ^ "M4.4 - 9km NNW of Westwood, California". USGS. 
  76. ^ "M5.1 - 1km S of La Habra, California". UGSS. 
  77. ^ "M6.0 - 6km NW of American Canyon, California". UGSS. 
  78. ^ "This event is being called the South Napa earthquake.". UGSS. 
Sources

External links[edit]