2019 Ridgecrest earthquakes

2032:(a notable geothermal field). These lie in a zone where stress and strike-slip movement from the OVF is transferred to various other faults to the south and east, including the Little Lake and Airport Lake faults. The Little Lake Fault has been considered a splay (branch) of the Sierra Nevada (or Sierran) Frontal Fault (SNFF) (formed by the uplift of the Sierra Nevada), but may actually accommodate a significant amount of the right-slip motion of the ECSZ, and (along with the Airport Lake fault zone) may be a major tectonic boundary. South of Little Lake the SNFF continues south along the west side of Indian Wells Valley (where Ridgecrest is situated), then curves west (roughly along California Highway 14) before connecting with the Garlock Fault. 1735: 6791: 2204: 2036:

NW trending strike-slip faults that cross the ECSZ. In particular, even though the Little Lake Fault is in general alignment with the Blackwater Fault (and its southern extension, the Calico Fault), and a connection is "strongly suspected", and though the aftershocks triggered along the entire length of these faults by the 1992 Landers earthquake suggests a structural continuity, yet the surficial geology shows that "the Blackwater fault ends a few kilometers short of the Garlock fault." How to explain this apparent lack of fault offsetting, and the larger question of how strain (dislocation) is transferred through or around the Garlock Fault, remains unanswered.

1886: 1743: 782: 32: 1945:, what is considered "light shaking" with only slight damage (such as cracked plaster). The intensity expected for Thursday's quake (on the 4th) was calculated to be less than that, so no alert was issued. While the actual shaking reached intensity 4 in some areas in the northern part of the county, in other parts the intensity reached only a level 2 or 3, not noticed by many people. The second quake, having a greater magnitude, was felt more strongly, with an intensity of 4.5 in some places, and 3.9 downtown. 730:, on a previously unnoticed NE-SW trending fault where it intersects the NW-SE trending Little Lake Fault Zone. This quake was preceded by several smaller earthquakes, and was followed by more than 1,400 detected aftershocks. The M 5.4 and M 7.1 quakes struck on Friday, July 5 at 4:08 a.m. and 8:19 p.m. PDT approximately 10 km (6 miles) to the northwest. The latter, now considered the mainshock, was the most powerful earthquake to occur in the state in 20 years (after the 774: 1992:, a zone of faulting extending into Nevada and northward, where the Sierra Nevada (Sierran) microplate that underlies most of Central California is being torn away from North American continent. Currently approximately one-quarter of the slippage between the Pacific Plate and North America is accommodated through the ECSZ and Walker Lane; it is expected that eventually the shearing will consolidate into a new transform fault that will replace the San Andreas Fault. 6779: 2190: 1957: 137: 67: 53: 95: 39: 109: 81: 123: 830:(USGS) seismologist Susan Hough stated it may have been the Little Lake Fault. Focused at a relatively shallow depth of 6.6 mi (10.7 km), the foreshock affected a large region populated by 20 million people. Residents near the epicenter reported that shaking lasted approximately 30 seconds. Shaking was felt as far north as 1897:(Cal OES) was raised to its highest level by Governor Newsom to coordinate resources. The agency distributed cots, water, and food. Due to temperatures exceeding 100 °F (38 °C), Cal OES established cooling stations in the affected areas. Newsom proclaimed a state of emergency for San Bernardino County on July 6. The 826:. The rupture occurred along a 10 mi (16 km) section of an unspecified fault. Earth on either side of the fault was deformed, with lateral shifts of 6–8 in (15–20 cm) in the immediate vicinity. The exact fault it occurred on is uncertain with many small faults encompassing the region, though 2043:

The Scodie Lineament is a zone of microseismicity extending southwest (paralleling the Garlock Fault) from near Walker Pass (due west of Ridgecrest) to align with the White Wolf Fault, scene of the 1952 Kern County earthquake south of Bakersfield. The nature of the seismicity suggests an early stage

1960:

Red marks the major fault zones. The red zone extending northeast from "LA" is the Garlock Fault. Extending northward from the Garlock Fault are (east-to-west) the Death Valley fault zone (orange), Panamint Valley Fault (red), Little Lake and Airport Lake fault zones (short bit of orange). The White

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mobile app, ShakeAlertLA, did not alert them to either of the Ridgecrest earthquakes, which many people assumed to be a failure. This app, developed by the City of Los Angeles in partnership with the USGS, and released at the beginning of 2019, is intended to give users located in Los Angeles County

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Structural damage and two building fires—one of which destroyed half of a home—occurred in Ridgecrest. One mobile home was knocked off its foundation and deemed uninhabitable. Around 20 injuries were reported, primarily from shattered glass and falling debris. Some gas lines broke, prompting utility

2035:

The easterly striking left-slip Garlock Fault south of Ridgecrest is one of California's longest active faults, and marks the boundary between different styles of tectonic deformation. It has been called "somewhat enigmatic" in that it appears to neither offset, nor be offset by, any of the active,

1937:

system being developed by the USGS that monitors earthquakes across Southern California. When that system detects an earthquake of magnitude 5.0 or greater it calculates the intensity of shaking to be expected in Los Angeles County, factoring in the calculated magnitude and distance of the source.

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Seismicity in Indian Wells Valley has been characterized by swarms of thousands of earthquakes, some lasting for more than a year. The Ridgecrest earthquake sequence of 1995 was particularly notable, having eight events M ≥ 4.0. This sequence was similar to the 2019 earthquakes in having two main

3935:".@GavinNewsom has approved an emergency proclamation for the 6.4 magnitude earthquake in Kern County & aftershocks. @Cal_OES has been fully activated since this morning & is working closely with state & local emergency managers to respond to impacts to residents & infrastructure" 1800:

Several fires broke out and five injuries were reported after the mainshock hit, most of them in Ridgecrest and Trona. 3,000 people were left without power in Ridgecrest and the rest of Kern County. In Trona, severe damage was reported, with houses knocked off their foundations and numerous gas

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system—An earthquake early warning system for the West Coast of the United States". Revised technical implementation plan for the ShakeAlert system: An earthquake early warning system for the West Coast of the United States (Report). Open-File Report 2018-1155. US Geological Survey.

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of the fault the epicenters of the 2019 earthquakes are mainly under the NWC, where the Little Lake Fault intersects the broad north–south oriented Airport Lake Fault Zone. The fault continues on to the Garlock Fault about 15 miles southeast of Ridgecrest, just past Searles Station.

865:  earthquake to have been a foreshock. All three earthquakes have been described by the United States Geological Survey as occurring via shallow strike-slip mechanisms. Subsequent seismic activity occurred along two intersecting faults in the Little Lake Fault Zone. 2052:

A large portion of the slippage between the Pacific and North American plates is accommodated in the Eastern California Shear Zone (ECSZ), resulting in many large earthquakes even within the limited span of the historical era. The most notable of these earthquakes is the

2015:

to the northern end of Rose Valley and the northwestern corner of the Naval Weapons Center (NWC), where the OVF turns slightly to the east. At the south end of Rose Valley the Little Lake Fault – scene of the 2019 Ridgecrest earthquakes – strikes southeast from near

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said there was a "1 in 20 chance" that the shock would be followed by larger earthquakes over the next few days. Jones also noted that the magnitude of additional shocks would also likely increase, with some possibly exceeding 5

5711:

Ross, Zachary E.; Idini, Benjamín; Jia, Zhe; Stephenson, Oliver L.; Zhong, Minyan; Wang, Xin; Zhan, Zhongwen; Simons, Mark; Fielding, Eric J.; Yun, Sang-Ho; Hauksson, Egill; Moore, Angelyn W.; Liu, Zhen; Jung, Jungkyo (2019),

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and residents in several apartment buildings were evacuated. Approximately 6,900 customers lost power near the epicenter: 6,000 in Ridgecrest and 900 in Searles Valley. A 4 in (10 cm) wide crack occurred along

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Geodetic measurements show that the slip-rate of Garlock Fault is currently less than half of its estimated long-term geological rate. This may indicate that the Garlock Fault is in the late stages of its earthquake cycle.

4267:"The #ShakeAlertLA app only sends alerts if shaking is 5.0+ in LA County. Epicenter was 6.4 in Kern County, @USGS confirms LA's shaking was below 4.5. We hear you and will lower the alert threshold with @USGS_ShakeAlert" 1901:

deployed 200 personnel to assist in relief operations. Power and water service was restored to Ridgecrest and roads were deemed safe by July 7; however, residents were advised to boil water for several days.

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companies to shut off service. Businesses experienced product loss, with goods falling off shelves. Emergency personnel responded to nearly two dozen incidents in the city and opened two shelters. Fifteen patients at

1844:

used social media to alert the public that they were aware of the earthquake and to only use 9-1-1 if there was dangerous conditions or injuries. Routine protocol inspections of major infrastructure, including the

900:  event, with the total number of aftershocks exceeding 3,000 by the morning of July 7. Geologists at the USGS estimate an additional 34,000 aftershocks in the six months following the earthquakes. 2175: 4.9. Another similarity with the 2019 events: the first earthquake, although occurring on a north-northwest trending fault (presumably the Little Lake fault), may have involved a northeast-striking fault. 1772:

covered multiple roads around the community, blocking off mountain roads, including the section of State Route 178 that connects Bakersfield with Lake Isabella. In Los Angeles proper, power outages affected the

2020:(a "locale" at the south end of Rose Valley) to run under the Naval Weapons Center. The surface trace of the Little Lake Fault is mapped through the northeast corner of the City of Ridgecrest, but due to the 785:

The aftershocks of the Ridgecrest earthquakes reveal two fault zones. The July 4 M 6.4 event (orange dot) occurred on the SW-NE fault where it intersects the NW-SE oriented fault. The red dot marks the M 7.1

2066:(preferred; other estimates range as high as 7.9). The Owens Valley quake is believed to be the greatest earthquake on record and not just for California, but also for the western continental United States. 2143:

5.2 earthquake in October 1961 near Brown (approximately halfway between Ridgecrest and Little Lake) that was felt in Independence and Los Angeles; it was preceded by eight minutes by an M

2131:. Following the Landers earthquake "a well-developed linear pattern of primary and triggered aftershocks" was observed that extended along the Little Lake Fault and into Owens Valley. 4311:

The ECSZ was originally limited to the area south of the Garlock Fault, which separates distinctly different modes of deformation, but now is considered to extend into Walker Lane.

3957: 6756: 3753: 2370: 5559:

Shelly, David R. (January 22, 2019). "A High-Resolution Seismic Catalog for the Initial 2019 Ridgecrest Earthquake Sequence: Foreshocks, Aftershocks, and Faulting Complexity".

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brought in additional personnel to conduct damage assessments. The USGS sent geologists to Kern County soon after the foreshock to look for a surface rupture and collect data.

2322: 777:

The July 2019 Ridgecrest earthquakes consist of three main shocks of magnitudes 6.4, 5.4, and 7.1, each followed by a flurry of aftershocks of substantially lower magnitude.

6647: 2511: 1909:

evacuated all non essential personnel and declared the base as "not mission capable until further notice" in a statement published on the base's Facebook page on July 6.

6735: 1981:, extending northeast and then east from the SAF's "Big Bend" to the Death Valley Fault near the Nevada state line, passing Ridgecrest about fifteen miles to the south. 5048: 2707: 5521:

Roquemore, G. R.; Simila, G. W. (June 1994). "Aftershocks from the 28 June 1992 Landers Earthquake: Northern Mojave Desert to the Coso Volcanic Field, California".

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leaks. Roughly 50 homes were damaged in the town. Multiple rockslides also occurred, making all roads to the city impassable. Water was also in high demand.

893:. No additional damage occurred from any of the aftershocks. The number of aftershocks within hours of the earthquake were unusually high, but not unprecedented. 2589: 4963:

Bawden, Gerald W.; Michael, Andrew J.; Kellog, Lousise M. (July 1999). "Birth of a fault: Connecting the Kern County and Walker Pass, California, earthquakes".

810:  occurred at 10:33 a.m. PDT (17:33 UTC) 7.5 mi (12.1 km) southwest of Searles Valley. The most populated area near the epicenter was 3782: 3703: 4040: 6893: 6878: 6715: 1894: 4243: 6177: 2073: 6.3 earthquake struck near Walker Pass (crest of the Sierra Nevada, due west from Ridgecest), with aftershocks continuing for nearly a year. The 2348: 1941:

At the time of the Ridgecrest earthquakes the threshold for issuing an alert was an expected shaking intensity in Los Angeles County of 4 (IV) on the

2913: 2497: 6598: 5423:

McClusky, S. C.; Bjornstad, S. C.; Hager, B. H.; King, R. W.; Meade, B. J.; Miller, M. M.; Monastero, F. C.; Souter, B. J. (September 1, 2001).

907:  aftershock was recorded 11 miles south of Searles Valley. This aftershock is tied for the strongest aftershock following the 7.1 M 6883: 3899: 718:  5.5 aftershock took place (the largest aftershock of the sequence) to the east of Ridgecrest. The first main shock (now deemed to be a 5506: 3876: 2936: 5838: 4114: 765:, Mexico. An estimated 20 million people experienced the foreshock, and approximately 30 million people experienced the mainshock. 5810: 5795: 5780: 2736: 5241:"Regional tectonics of the Coso geothermal area along the intracontinental plate boundary in central eastern California: Three-dimensional 4738: 4734: 3961: 4718: 4714: 4674: 4670: 6873: 5144:

Field Guide to Plutons, Volcanoes, Faults, Reefs, Dinosaurs, and Possible Glaciation in Selected Areas of Arizona, California, and Nevada

4194: 1995:

Along the eastern front of the Sierra Nevada strike-slip faulting happens on the Owens Valley Fault (OVF), part of which ruptured in the

2094:, occurred on the White Wolf fault south of Bakersfield, and likely connected with the Walker Pass earthquake via the Scodie Lineament. 31: 873:

A significant series of additional earthquakes followed the foreshock, with the majority of magnitudes ranging approximately 2–4 M

2477: 2171: 5.8 earthquake on September 20, located about a mile south-southwest of the first earthquake. Another shock on the 24th was M 5692: 2227: 2159: 4.3). In 1977 two small quakes that hit Ridgecrest in February were followed by another pair of small earthquakes in March. 2044:

in the formation of a strike-slip fault, before localized faulting in the shear zone has connected to form a continuous structure.

1765: 727: 4147: 4015: 3672: 2178:

An earlier study noted that successive earthquake sequences here tend to increase in number and magnitude, and migrate southward.

6804: 6170: 5004:"Source parameters for the 1952 Kern County earthquake, California: A joint inversion of leveling and triangulation observations" 532: 5614:

Unruh, Jeffry; Humphrey, James; Barron, Andrew (April 2003). "Transtensional model for the Sierra Nevada frontal fault system".

3807: 2653: 6317: 5159: 877: . By the evening of July 5, more than 1,400 earthquakes occurred, the strongest of which measured 5.4 M 737:

Relatively minor damage resulted from the initial foreshock, though some building fires were reported in Ridgecrest near the

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Harriet Ryan; Rong-Gong Lin II; Julia Wick; Louis Sahagun; Karen Kaplan & Giulia McDonnel Nieto Del Rio (July 4, 2019).

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Aerial view of a 3–5 ft (0.91–1.52 m) lateral offset on a service road within Naval Air Weapons Station China Lake

4063: 2017: 1933:

some tens of seconds of warning of possibly damaging shaking from a non-local earthquake. ShakeAlertLA is triggered by the

1906: 1858: 741:. The main quake on July 5 cut power to at least 3,000 residents in Ridgecrest. Effects were felt across much of 711: 607: 5079: 2028:

East of Rose Valley, between the nearly parallel ends of the Owens Valley and Little Lake faults, lies the Coso Range and

1920:  hitting the Owens Valley. The NW-SE fault is believed to now have increased to between 25 and 30 miles in length. 6591: 6419: 6202: 5537: 6868: 6674: 6407: 6371: 6163: 5409: 5395: 3650: 2675: 2147: 3.4 foreshock felt in China Lake (east of Ridgecrest). Additional earthquakes struck near Walker Pass in 1961 (M 192: 5102:"Kinematics of the northern Walker Lane: An incipient transform fault along the Pacific—North American plate boundary" 6186: 5831: 2222: 1942: 937: 881:  at 4:07 a.m. PDT (11:07 UTC) on July 5. Shaking from this aftershock was felt as far north as 3707: 6705: 6528: 6377: 6335: 6244: 4947: 4931: 4915: 4899: 237: 6888: 6631: 6413: 6389: 6286: 6268: 6091: 5179:

Given, D.D.; Allen, R.M.; Baltay, A.S.; et al. (2018). "Revised technical implementation plan for the Shake

827: 5627: 4984: 3983: 2323:"1st Fatality in Ridgecrest Earthquake May Be Man Found Dead Under Jeep 100 Miles From Epicenter: Investigators" 6636: 6584: 1854: 734:). Subsequent aftershocks extended approximately 50 km (~30 miles) along the Little Lake Fault Zone. 2891: 2821: 2761: 2708:"'Your house is gone.' Ridgecrest residents survey damage after powerful earthquake jolts Southern California" 1961:

Wolf Fault (yellow) parallels the western end of the Garlock Fault, with the Kern Canyon Fault striking north.

6641: 6607: 6492: 6347: 6238: 6232: 6117: 5983: 5913: 4135: 2843: 2091: 1966: 1850: 1841: 1734: 6621: 6540: 6383: 6226: 6012: 5989: 5824: 2232: 2054: 1996: 1774: 1761: 1752: 4115:"Nearly 11% chance of another earthquake of magnitude 7 or greater in Southern California, scientists say" 2447: 6853: 6558: 6522: 6510: 6498: 6431: 6425: 6401: 6341: 6329: 6323: 6280: 6256: 6214: 5853: 5850: 5847: 5425:"Present Day Kinematics of the Eastern California Shear Zone from a Geodetically Constrained Block Model" 2865: 2783: 2620: 2567: 2247: 2237: 2217: 2128: 2074: 731: 1948:

According to the City of Los Angeles's Twitter account, the threshold will be lowered after this event.

6769: 6652: 6546: 6504: 6461: 6449: 6443: 6359: 6220: 6144: 2545: 1778: 1757: 823: 803: 795: 690: 149: 2135: 2119: 2106: 2078: 2058: 698: 474: 457: 440: 423: 6843: 6552: 6516: 6365: 6064: 3856: 1929: 1898: 815: 567: 6848: 6695: 6564: 6473: 6437: 6395: 6047: 5953: 5867: 2008: 1977:, featuring multiple right-lateral strike-slip faults paralleling the SAF. It is transected by the 886: 626: 5713: 1885: 6863: 6858: 6725: 6720: 6311: 6274: 6208: 6097: 6029: 5995: 5947: 5901: 5101: 4041:"Disneyland Rides Close for Inspection After 6.4 Earthquake Jolts Southern California, Staff Say" 3830: 2448:"7.1-Magnitude Earthquake Hits Southern California; Experts Say More Strong Aftershocks Possible" 2242: 2098: 1837: 726:, approximately 18 km (11.2 mi) ENE of Ridgecrest, and 13 km (8.1 mi) WSW of 5806: 5791: 5776: 4092: 3621: 3599: 3577: 2419: 229: 218: 207: 6534: 6455: 6353: 6262: 6250: 5884: 5306:"Kinematics of the southern Walker Lane Belt and motion of the Sierra Nevada block, California" 4951: 4935: 4919: 4903: 4392:, pp. 7, 10, and see Figure 2 (p.6), "Generalizied Geologic Map of the Indian Wells Area". 4244:"ShakeAlertLA to Lower Alert Threshold After 6.4 Magnitude Quake Hits Mojave Desert, City Says" 3555: 3533: 3511: 3489: 3467: 3445: 3423: 3401: 3379: 3357: 3335: 3313: 3291: 3269: 3247: 3225: 3203: 3181: 3159: 3137: 3115: 3093: 3071: 3049: 3027: 3005: 2983: 2961: 1826: 831: 811: 754: 682: 284: 273: 262: 251: 6795: 6700: 6663: 6658: 6626: 6038: 5907: 4171:

More distant earthquakes provide more warning, but are less damaging, than local earthquakes.

2937:"Expect 34,000 aftershocks from Ridgecrest earthquakes. But seismic activity is slowing down" 2209: 2012: 5350: 5240: 3919: 5930: 5728: 5658: 5481: 5436: 5365: 5317: 5274: 5217: 5116: 5063: 5015: 4972: 4270: 3938: 2705: 2372:

M 6.4 and M 7.1 Ridgecrest, CA Earthquakes PRELIMINARY VIRTUAL RECONNAISSANCE REPORT (PVRR)

2004: 1985: 1846: 1742: 5470:"Refined kinematics of the Eastern California shear zone from GPS observations, 1993-1998" 5202: 8: 6690: 5714:"Hierarchical interlocked orthogonal faulting in the 2019 Ridgecrest earthquake sequence" 5201:

Hauksson, Egill; Hutton, Kate; Kanamori, Hiroo; Jones, Lucille (November–December 1995).

2844:"SoCal earthquake: 5.4-magnitude earthquake hits Searles Valley, 1 day after 6.4 temblor" 2029: 742: 5732: 5683: 5662: 5485: 5440: 5369: 5321: 5278: 5221: 5120: 5067: 5019: 4976: 6710: 5754: 5631: 5576: 5454: 5381: 5335: 5290: 5165: 5033: 4988: 3680: 2706:

Alexa Díaz; Alejandra Reyes-Velarde; Hannah Fry & Rong-Gong Lin II (July 5, 2019).

2114:

7.8) was also the strongest earthquake in California since 1906. It was followed by a M

2000: 1833: 1768:, several buildings sustained damage, water and gas lines broke, and power lines fell. 882: 3934: 2478:"Second, stronger quake in Ridgecrest shakes Southern California, causing more damage" 2349:"Ridgecrest Quake Damage Estimated Above $ 5 Billion at Massive China Lake Naval Base" 6783: 6751: 5758: 5746: 5635: 5580: 5458: 5339: 5203:"Preliminary Report on the 1995 Ridgecrest Earthquake Sequence in Eastern California" 5169: 5155: 5139: 5037: 4195:"Why L.A.'s early warning system didn't send an alert before the 6.4 magnitude quake" 4119: 3904: 2519: 2491: 2482: 2195: 1970: 890: 791: 781: 723: 404: 393: 382: 371: 5385: 5294: 4992: 5736: 5666: 5623: 5600: 5568: 5489: 5444: 5373: 5325: 5282: 5225: 5185: 5147: 5124: 5071: 5023: 4980: 4013: 835: 4266: 3958:"Cal OES Activates SOC in Support of Ridgecrest Earthquake in Southern California" 1916:  or above earthquake was a "1 in 10 chance", with a "50-50" chance of a 6 M 857:  earthquake occurred in the Ridgecrest area after being preceded by a 5.0 M 3857:"Fires break out after a second and stronger earthquake hits Southern California" 2476:

Kaplan, Alejandra Reyes-Velarde, Rosanna Xia, Ruben Vives, Karen (July 6, 2019).

2167: 5.4 earthquake on August 17 located 11 miles north of Ridgecrest, and an M 1785: 839: 762: 5151: 3783:"6.4 magnitude earthquake rattles Southern California; felt in Coachella Valley" 1805:

once again closed State Route 178 after new cracks and rockslides had occurred.

5468:

Miller, M. M.; Johnson, D. J.; Dixon, T. H.; Dokka, R. K. (February 10, 2001).

3877:"Clusters of Jarring Aftershocks Shake Ridgecrest With Thousands More Expected" 3808:"6.4M Quake Strikes Near Ridgecrest In Kern County; No Reports Of Damage In LA" 5146:. Geological Society of America Field Guide 11. Vol. 11. pp. 43–81. 3754:"6.4 magnitude earthquake near Ridgecrest felt throughout Southern California" 773: 6837: 6819: 6806: 5549: 5424: 2523: 2134:

Smaller earthquakes are quite common. In the Ridgecrest area these include a

2021: 1999:

near Lone Pine. The OVF runs south, largely along U.S. Highway 395, through

1978: 1974: 547: 534: 6155: 5741: 5075: 4016:"Strongest earthquake in years rattles Southern California; damage reported" 3651:"No major injuries reported in 6.4 earthquake in California's Mojave Desert" 5750: 5591: 2654:"Strong earthquake sets off fires, damages desert city east of Los Angeles" 2090: 7.3), considered the biggest earthquake to hit California since the 1829: 5816: 5508:

Active Faults and Associated Tectonic Stress in the Coso Range, California

5260:

models, spatial-temporal seismicity patterns, and seismogenic deformation"

5229: 6730: 5671: 5646: 5494: 5469: 5449: 5286: 5028: 1989: 819: 802:  foreshock occurred about 6.8 mi (10.9 km) southwest of 707: 694: 686: 6576: 5190: 5100:

Faulds, James E.; Henry, Christopher D.; Hinz, Nicholas H. (June 2005).

4558:, p. 314) showing the northern termination of the Blackwater fault. 2512:"Northern Ireland pair shaken by quake on 30th floor of Las Vegas hotel" 1969:(ECSZ), a seismically active region east of the southern segment of the 5572: 5377: 4136:"Californians' Alert Apps Didn't Sound for 2 Big Earthquakes. Why Not?" 3898:

Chabria, Anita; Reyes-Velarde, Alejandra; Vives, Ruben (July 6, 2019).

2914:"More Than 3,000 Aftershocks Follow 1st of 2 Major Quakes To Hit SoCal" 1934: 1869: 1862: 1769: 758: 577: 5330: 5305: 5691:. NNWC Technical Publication 6834. Naval Weapons Center, China Lake. 5685:

Engineering and Environmental Geology of the Indian-Wells Valley Area

5413: 5128: 5049:"Late Cenozoic Strike-slip Faulting in the Mojave Desert, California" 2250:, the last earthquake of similar intensity to strike within the state 861:  foreshock 3 minutes prior, revealing the previous day's 6.4 M 738: 719: 5304:

Hearn, Elizabeth Harding; Humphreys, Eugene D. (November 10, 1998).

5003: 3960:. California Governor's Office of Emergency Services. Archived from 3900:"Earthquake batters Trona: Rockslides cut off town; water is scarce" 2737:"Major 6.4 quake hits Mojave Desert, felt in Los Angeles, Las Vegas" 5604: 2676:"Magnitude 6.4 Earthquake Rocks Southern California on 4th of July" 1802: 843: 681:) of July 4 and 5 occurred north and northeast of the town of 5538:"Tectonics, Seismicity, and Volcanism at The Naval Weapons Center" 5399: 4282: 4148:"ShakeAlert fails to send earthquake warning for big SoCal quake" 3942: 1956: 919:  4.5 associated with the 2019 Ridgecrest earthquakes 847: 746: 585: 4380:, pp. 5, 10, and see figure 2 (p. 9) for a map of the area. 3855:

Maxouris, Christina; Moon, Sarah; Jones, Sheena (July 6, 2019).

3673:"At least 20 injured in California quake | NHK WORLD-JAPAN News" 814:, home to 28,000 people. The foreshock originated along a 750: 581: 3984:"Earthquake Rattles Southern California; No Injuries Reported" 3704:"Earthquake rattles Southern California; no injuries reported" 1928:

Many residents of Los Angeles County were not pleased when an

5138:

Frankel, K.L.; Glazner, A.F.; Kirby, E.; et al. (2008).

3728: 3701: 1912:

In addition, Dr. Lucy Jones said that the odds of another 7 M

1808:

Overall damage is estimated in excess of $ 5.3 billion.

822:, a region frequented by earthquake swarms, near the edge of 5137: 4500: 4469: 4413: 4365: 4336: 4324: 4295: 896:

Thousands more aftershocks occurred following the 7.1 M

5628:

10.1130/0091-7613(2003)031<0327:TMFTSN>2.0.CO;2

5200: 4985:

10.1130/0091-7613(1999)027<0601:BOAFCT>2.3.CO;2

4869: 4854: 4842: 4218: 4192: 3874: 2442: 2440: 1789: 1746:

Surface rupture associated with the July 4 earthquake.

677:(more commonly referred to in scientific literature as the 5422: 5351:"Revisiting the 1872 Owens Valley, California, Earthquake" 4567: 4904:"Ridgecrest 2019a: M 6.4 - 12km SW of Searles Valley, CA" 3897: 3831:"Trona, California Suffers Earthquake Damage, Rockslides" 3751: 2892:"California earthquake felt in Los Angeles and Las Vegas" 2762:"M 6.4 - 12km SW of Searles Valley, CA: Did You Feel It?" 2471: 2469: 2467: 2465: 2320: 5802: 5787: 5772: 4952:"Ridgecrest 2019d: M 5.5 - 17km S of Searles Valley, CA" 4936:"Ridgecrest 2019c: M 7.1 - 18km W of Searles Valley, CA" 4920:"Ridgecrest 2019b: M 5.4 - 16km W of Searles Valley, CA" 4230: 4133: 3780: 2437: 5467: 5140:"Active tectonics of the eastern California shear zone" 5047:

Dokka, Roy K.; Travis, Christopher J. (February 1990).

4606: 4579: 4485: 4340: 4312: 2889: 2819: 1965:

The broad context of the Ridgecrest earthquakes is the

5710: 4535: 4533: 2462: 1857:

dispatched personnel to survey the county for damage.

1699: 1675: 1651: 1627: 1603: 1579: 1555: 1531: 1507: 1483: 1459: 1435: 1411: 1387: 1363: 1339: 1315: 1291: 1267: 1243: 1219: 1195: 1171: 1147: 1123: 1099: 1075: 1051: 1027: 1003: 979: 955: 6767: 5178: 4180: 3729:

John Antczak & Olga R. Rodriguez (July 4, 2019).

3702:

John Antczak & Olga R. Rodriguez (July 4, 2019).

6134:

indicates earthquake resulting in at least 30 deaths

5593:

Seismicity of the United States, 1568-1989 (Revised)

4865: 4863: 4602: 4600: 2185: 5613: 5599:. Professional Paper 1527. U.S. Geological Survey. 4962: 4698: 4591: 4530: 4496: 4494: 4457: 4264: 3875:Christine Kim & Jonathan Lloyd (July 8, 2019). 1984:The ECSZ extends north along the east front of the 706:magnitudes 6.4, 5.4, and 7.1, and many perceptible 136: 3580:. United States Geological Survey. August 22, 2019 2378:, Structural Extreme Events Reconnaissance (StEER) 2321:Erika Martin & Eric Spillman (July 10, 2019). 2136: 1895:California Governor's Office of Emergency Services 722:) occurred on Thursday, July 4 at 10:33 a.m. 4860: 4597: 3854: 3752:Alicia Robinson & Jeong Park (July 4, 2019). 2346: 6835: 5535: 5523:Bulletin of the Seismological Society of America 5358:Bulletin of the Seismological Society of America 4946: 4930: 4914: 4898: 4881: 4491: 3781:Joseph Hong & Ricardo Lopez (July 4, 2019). 3624:. United States Geological Survey. July 14, 2022 3558:. United States Geological Survey. July 26, 2019 3536:. United States Geological Survey. July 16, 2019 3514:. United States Geological Survey. July 16, 2019 3492:. United States Geological Survey. July 12, 2019 3470:. United States Geological Survey. July 11, 2019 2807: 2546:"California shakes from 2nd big quake in 2 days" 2431: 2415: 2403: 2399: 2395: 2303: 2291: 2279: 2267: 5536:Roquemore, Gerald W.; Zellmer, John T. (1983). 5520: 5099: 4551: 4539: 4512: 4352: 3602:. United States Geological Survey. June 3, 2020 3448:. United States Geological Survey. July 7, 2019 3426:. United States Geological Survey. July 6, 2019 3404:. United States Geological Survey. July 6, 2019 3382:. United States Geological Survey. July 6, 2019 3360:. United States Geological Survey. July 6, 2019 3338:. United States Geological Survey. July 6, 2019 3316:. United States Geological Survey. July 6, 2019 3294:. United States Geological Survey. July 6, 2019 3272:. United States Geological Survey. July 6, 2019 3250:. United States Geological Survey. July 6, 2019 3228:. United States Geological Survey. July 6, 2019 3206:. United States Geological Survey. July 6, 2019 3184:. United States Geological Survey. July 6, 2019 3162:. United States Geological Survey. July 6, 2019 3140:. United States Geological Survey. July 6, 2019 3118:. United States Geological Survey. July 6, 2019 3096:. United States Geological Survey. July 6, 2019 3074:. United States Geological Survey. July 6, 2019 3052:. United States Geological Survey. July 6, 2019 3030:. United States Geological Survey. July 5, 2019 3008:. United States Geological Survey. July 4, 2019 2986:. United States Geological Survey. July 4, 2019 2964:. United States Geological Survey. July 4, 2019 2890:Jay Croft & Braden Goyette (July 4, 2019). 2868:. United States Geological Survey. July 5, 2019 2822:"California earthquake brings scattered damage" 2820:Jay Croft & Braden Goyette (July 4, 2019). 2764:. United States Geological Survey. July 4, 2019 2623:. United States Geological Survey. July 4, 2019 2570:. United States Geological Survey. July 4, 2019 1760:near Searles Valley and debris covered part of 853:At 8:19 p.m. PDT on July 5, a larger 7.1 M 693:(approximately 200 km north-northeast of 667:1 death, 25 injured (20 on July 4, 5 on July 5) 6140:indicates the deadliest earthquake of the year 5303: 4441: 1428:9.9 mi (16 km) SSW of Searles Valley 1092:8.7 mi (14 km) WSW of Searles Valley 1044:8.1 mi (13 km) SSW of Searles Valley 697:). They included three initial main shocks of 6592: 6185: 6171: 5832: 5589: 5238: 4802: 4786: 4774: 4750: 4642: 4417: 4073:. Sacramento, California: State of California 1548:9.9 mi (16 km) NNE of Coso Junction 1260:7.5 mi (12 km) SW of Searles Valley 1188:11 mi (18 km) WNW of Searles Valley 972:7.5 mi (12 km) SW of Searles Valley 903:On June 3, 2020, at 6:32 PM PST, a 5.5 M 6894:Geology of San Bernardino County, California 6879:History of San Bernardino County, California 5349:Hough, Susan E.; Hutton, Kate (April 2008). 3776: 3774: 2934: 2590:"Earthquake: 4.2 quake hits near Ridgecrest" 2496:: CS1 maint: multiple names: authors list ( 1524:9.9 mi (16 km) W of Searles Valley 1068:9.9 mi (16 km) W of Searles Valley 889:(including Los Angeles), and as far east as 5846: 5590:Stover, Carl W.; Coffman, Jerry L. (1993). 5348: 5046: 4618: 4555: 4524: 2615: 2613: 2611: 2342: 2340: 2316: 2314: 2312: 1923: 1692:11 mi (17 km) S of Searles Valley 1620:5.6 mi (9 km) NE of Coso Junction 1380:9.9 mi (16 km) ESE of Little Lake 1284:9.3 mi (15 km) ESE of Little Lake 1164:9.9 mi (16 km) ESE of Little Lake 1116:11 mi (18 km) W of Searles Valley 842:, Mexico, with evacuations taking place in 6599: 6585: 6178: 6164: 5839: 5825: 5504: 4830: 4818: 4806: 4790: 4762: 4654: 4630: 4429: 4401: 4134:Bogel-Burroughs, Nicholas (July 8, 2019). 3731:"Some injuries, 2 house fires after quake" 2784:"USGS M 5.0 Ridgecrest (foreshock to 7.1)" 2734: 1865:suspended ride operations for inspection. 1452:11 mi (17 km) ESE of Little Lake 1308:12 mi (19 km) ESE of Little Lake 1212:14 mi (23 km) ESE of Little Lake 6606: 5740: 5670: 5644: 5493: 5448: 5329: 5189: 5027: 4299: 3771: 2120: 2107: 2079: 2059: 1840:. Local emergency responders such as the 1716:8.1 mi (13 km) NE of Ridgecrest 1596:12 mi (19 km) NNE of Ridgecrest 1572:5.0 mi (8 km) ENE of Ridgecrest 1404:9.3 mi (15 km) E of Little Lake 1140:9.9 mi (16 km) E of Little Lake 1020:9.3 mi (15 km) NE of Ridgecrest 996:4.3 mi (7 km) ESE of Ridgecrest 699: 475: 458: 441: 424: 16:July 4–5, 2019, earthquakes in California 5239:Hauksson, Egill; Unruh, Jeffrey (2007). 3870: 3868: 3866: 3645: 3643: 3641: 3639: 3358:"M 4.6 - 16km SSW of Searles Valley, CA" 3138:"M 5.4 - 18km WNW of Searles Valley, CA" 3050:"M 5.0 - 14km WSW of Searles Valley, CA" 3006:"M 4.5 - 13km SSW of Searles Valley, CA" 2648: 2646: 2644: 2642: 2640: 2638: 2608: 2337: 2309: 2228:List of earthquakes in the United States 2047: 1955: 1884: 1741: 1733: 1668:11 mi (18 km) E of Little Lake 1644:11 mi (18 km) E of Little Lake 1476:11 mi (18 km) E of Little Lake 1356:12 mi (20 km) E of Little Lake 1332:3.7 mi (6 km) SE of Ridgecrest 1236:11 mi (18 km) E of Little Lake 780: 772: 5681: 4481: 4445: 4389: 4377: 4009: 4007: 4005: 3828: 3468:"M 4.5 - 16km NNE of Coso Junction, CA" 3204:"M 4.5 - 12km SW of Searles Valley, CA" 2885: 2883: 2730: 2728: 2701: 2699: 2697: 2621:"M 6.4 - 12km SW of Searles Valley, CA" 2568:"M 4.0 - 11km SW of Searles Valley, CA" 1500:14 mi (22 km) N of Ridgecrest 6836: 5558: 5002:Bawden, Gerald W. (January 10, 2001). 5001: 4845:, p. 54, and see Figure 1, p. 55. 4686: 4112: 4093:"Naval Air Weapons Station China Lake" 4064:"Proclamation of a State of Emergency" 4061: 3932: 3600:"M 5.5 - 17km S of Searles Valley, CA" 3446:"M 4.5 - 16km W of Searles Valley, CA" 3072:"M 7.1 - 18km W of Searles Valley, CA" 3028:"M 5.4 - 16km W of Searles Valley, CA" 2866:"M 5.4 - 16km W of Searles Valley, CA" 2475: 1973:(SAF) and largely coincident with the 6884:July 2019 events in the United States 6580: 6159: 5820: 4891: 4265:City of Los Angeles (July 4, 2019). 3955: 3863: 3636: 3534:"M 4.9 - 9km NE of Coso Junction, CA" 3380:"M 4.9 - 17km ESE of Little Lake, CA" 3314:"M 4.9 - 16km ESE of Little Lake, CA" 3248:"M 4.9 - 19km ESE of Little Lake, CA" 3226:"M 5.5 - 15km ESE of Little Lake, CA" 3160:"M 5.0 - 23km ESE of Little Lake, CA" 3116:"M 5.0 - 16km ESE of Little Lake, CA" 2635: 2347:Los Angeles Times (August 14, 2019). 2057:, with an estimated magnitude of 7.4 1880: 1816: 5647:"Active faulting in the Walker Lane" 4554:, p. 854. See also figure 4 in 4145: 4002: 3512:"M 4.5 - 19km NNE of Ridgecrest, CA" 2880: 2735:Cabanatuan, Michael (July 4, 2019). 2725: 2694: 2543: 2363: 2097:At the southern end of the ECSZ the 1907:Naval Air Weapons Station China Lake 1893:The State Operations Center for the 1859:Naval Air Weapons Station China Lake 806:. A foreshock registering 6.4 M 712:Naval Air Weapons Station China Lake 5698:from the original on July 25, 2019. 5505:Roquemore, Glenn R. (March 1981a). 5394: 5194:– via U.S. Geological Survey. 4730: 4710: 3622:"M 4.6 - 13km NE of Ridgecrest, CA" 3578:"M 5.0 - 18km E of Little Lake, CA" 3556:"M 4.7 - 18km E of Little Lake, CA" 3490:"M 4.9 - 9km ENE of Ridgecrest, CA" 3402:"M 4.5 - 18km E of Little Lake, CA" 3336:"M 4.6 - 15km E of Little Lake, CA" 3292:"M 5.4 - 20km E of Little Lake, CA" 3182:"M 4.7 - 18km E of Little Lake, CA" 3094:"M 4.6 - 16km E of Little Lake, CA" 2984:"M 4.6 - 15km NE of Ridgecrest, CA" 2962:"M 4.6 - 7km ESE of Ridgecrest, CA" 2935:Wigglesworth, Alex (July 9, 2019). 2450:. The Weather Company. July 6, 2019 1951: 1795: 1729: 679:2019 Ridgecrest earthquake sequence 66: 52: 13: 6874:History of Kern County, California 5803:International Seismological Centre 5788:International Seismological Centre 5773:International Seismological Centre 5704: 5682:Zellmer, John T. (November 1987). 5645:Wesnousky, Steven G. (June 2005). 5410:International Seismological Centre 5408: 5396:International Seismological Centre 4666: 4193:Lin, Rong-Gong II (July 4, 2019). 3424:"M 4.5 - 22km N of Ridgecrest, CA" 3270:"M 4.8 - 6km SE of Ridgecrest, CA" 2127:7.4) quake on a nearby fault, the 643:(including before main foreshock) 94: 38: 14: 6905: 6143:Dates for all earthquakes are in 5765: 4699:Bawden, Michael & Kellog 1999 4592:Bawden, Michael & Kellog 1999 4458:Unruh, Humphrey & Barron 2003 3829:McBride, Jessica (July 6, 2019). 2223:List of earthquakes in California 1943:Modified Mercalli Intensity Scale 948: 659:(including after main foreshock) 108: 80: 6789: 6777: 4875: 4848: 4836: 4824: 4812: 4796: 4780: 4768: 4756: 4744: 4724: 4704: 4692: 4680: 4660: 4648: 4636: 4624: 4612: 4585: 4573: 4561: 4545: 4518: 4506: 4475: 4463: 4451: 4435: 4423: 4298:, p. 45, and see Figure 1; 3956:Gudel, Jonathan (July 4, 2019). 2202: 2188: 1792:he was working under collapsed. 710:, mainly within the area of the 135: 121: 107: 93: 79: 65: 51: 37: 30: 6757:Nevada Seismological Laboratory 5474:Journal of Geophysical Research 5310:Journal of Geophysical Research 5267:Journal of Geophysical Research 5008:Journal of Geophysical Research 4407: 4395: 4383: 4371: 4358: 4346: 4330: 4318: 4305: 4289: 4258: 4236: 4224: 4219:Los Angeles Times, July 4, 2019 4212: 4186: 4174: 4165: 4127: 4106: 4085: 4071:Office of Governor Gavin Newsom 4055: 4033: 3976: 3949: 3933:Newsom, Gavin (July 4, 2019). 3926: 3912: 3891: 3848: 3822: 3800: 3745: 3722: 3695: 3665: 3614: 3592: 3570: 3548: 3526: 3504: 3482: 3460: 3438: 3416: 3394: 3372: 3350: 3328: 3306: 3284: 3262: 3240: 3218: 3196: 3174: 3152: 3130: 3108: 3086: 3064: 3042: 3020: 2998: 2976: 2954: 2928: 2906: 2858: 2836: 2813: 2801: 2776: 2754: 2668: 2582: 2560: 2537: 2504: 2425: 1097: 828:United States Geological Survey 798:) on July 4, 2019, a 4.0 M 600: 122: 5561:Seismological Research Letters 5210:Seismological Research Letters 4113:KAPLAN, KAREN (July 6, 2019). 4062:Newsom, Gavin (July 6, 2019). 2544:Byrd, Doborah (July 6, 2019). 2409: 2389: 2297: 2285: 2273: 2261: 1855:Ventura County Fire Department 1673: 1649: 1337: 1265: 1193: 1169: 1145: 1073: 1049: 953: 868: 768: 1: 4353:Faulds, Henry & Hinz 2005 3741:– via Associated Press. 3718:– via Associated Press. 2254: 2092:1906 San Francisco earthquake 1967:Eastern California Shear Zone 1851:Los Angeles metropolitan area 1842:Los Angeles Police Department 820:Eastern California Shear Zone 498:A: 10.7 km (6.6 mi) 5429:Geophysical Research Letters 4882:Roquemore & Zellmer 1983 4364:See Figure 1 (index map) in 4231:New York Times, July 8, 2019 4146:Dowd, Katie (July 4, 2019). 2233:1872 Owens Valley earthquake 2055:1872 Owens Valley earthquake 1997:1872 Owens Valley earthquake 1905:Following the shock, (NAWS) 1849:, were conducted across the 1811: 1753:Ridgecrest Regional Hospital 1738:ShakeMap for M7.1 earthquake 522:D: 6.8 km (4.2 mi) 514:C: 8.0 km (5.0 mi) 506:B: 7.0 km (4.3 mi) 7: 5418:. Thatcham, United Kingdom. 5404:. Thatcham, United Kingdom. 4552:Roquemore & Simila 1994 4540:Roquemore & Simila 1994 4513:Roquemore & Simila 1994 2248:1999 Hector Mine earthquake 2238:1952 Kern County earthquake 2218:List of earthquakes in 2019 2181: 2129:1999 Hector Mine earthquake 2075:1952 Kern County earthquake 732:1999 Hector Mine earthquake 675:2019 Ridgecrest earthquakes 22:2019 Ridgecrest earthquakes 10: 6910: 6118:Davao del Sur, Philippines 5914:Eastern Samar, Philippines 4442:Hearn & Humphreys 1998 1521:6.6 mi (10.6 km) 1257:6.9 mi (11.1 km) 1233:8.1 mi (13.0 km) 1209:7.0 mi (11.2 km) 1185:7.7 mi (12.4 km) 969:6.4 mi (10.3 km) 824:Death Valley National Park 804:Searles Valley, California 714:. Eleven months later, a M 6869:Earthquakes in California 6744: 6683: 6614: 6483: 6302: 6193: 6187:Earthquakes in California 6127: 6110: 6084: 6057: 6022: 6005: 5971:California, United States 5963: 5940: 5923: 5894: 5877: 5860: 4958:. U.S. Geological Survey. 4942:. U.S. Geological Survey. 4926:. U.S. Geological Survey. 4910:. U.S. Geological Survey. 4803:Stover & Coffman 1993 4787:Stover & Coffman 1993 4775:Stover & Coffman 1993 4751:Stover & Coffman 1993 4643:Stover & Coffman 1993 4418:Hauksson & Unruh 2007 1899:California National Guard 1834:an emergency proclamation 1724: 1713:3.9 mi (6.3 km) 1689:4.2 mi (6.8 km) 1665:1.5 mi (2.4 km) 1641:2.4 mi (3.8 km) 1617:1.6 mi (2.5 km) 1593:2.2 mi (3.6 km) 1569:6.2 mi (9.9 km) 1545:0.5 mi (0.8 km) 1497:1.9 mi (3.0 km) 1473:1.5 mi (2.4 km) 1449:2.5 mi (4.0 km) 1425:1.9 mi (3.1 km) 1401:3.2 mi (5.1 km) 1377:1.2 mi (1.9 km) 1353:4.6 mi (7.4 km) 1329:4.9 mi (7.9 km) 1305:4.1 mi (6.6 km) 1281:2.1 mi (3.4 km) 1161:5.9 mi (9.5 km) 1137:5.7 mi (9.1 km) 1113:5.0 mi (8.0 km) 1089:0.6 mi (0.9 km) 1065:4.3 mi (7.0 km) 1041:3.2 mi (5.2 km) 1017:1.2 mi (1.9 km) 993:1.7 mi (2.8 km) 947: 944: 941: 936: 929: 926: 923: 663: 647: 633: 620: 599: 591: 573: 563: 526: 518: 510: 502: 494: 486: 469: 452: 435: 418: 410: 399: 388: 377: 366: 358: 347:D: June 3, 2020 343: 332:C: July 5, 2019 328: 317:B: July 5, 2019 313: 302:A: July 4, 2019 298: 290: 279: 268: 257: 246: 235: 224: 213: 202: 191: 183: 175: 167: 159: 148: 26: 6203:1812 San Juan Capistrano 5316:(B11): 27, 033–27, 049. 4556:Dokka & Travis (1990 2810:(accessed July 6, 2019). 2155: 4.9), and 1979 (M 1930:earthquake early warning 1924:Earthquake early warning 1868:On July 4, seismologist 6675:2020 Monte Cristo Range 6420:1987 Superstition Hills 6408:1986 North Palm Springs 6372:1948 Desert Hot Springs 6013:Sunda Strait, Indonesia 5990:North Maluku, Indonesia 5742:10.1126/science.aaz0109 5152:10.1130/2008.fld011(03) 5076:10.1029/TC009i002p00311 4619:Hough & Hutton 2008 4525:Dokka & Travis 1990 4152:San Francisco Chronicle 3787:Palm Springs Desert Sun 2741:San Francisco Chronicle 2243:1992 Landers earthquake 2099:1992 Landers earthquake 1986:Sierra Nevada Mountains 1825:  6.4 foreshock, 6889:Ridgecrest, California 6684:Faults and fault zones 6318:1892 Vacaville–Winters 5813:for this event. - M7.1 5798:for this event. - M5.4 5783:for this event. - M6.4 5552:on September 13, 2020. 5542:Naval Research Reviews 4315:, pp. 2255, 2245. 3706:. WSMH. Archived from 2808:ANSS: Ridgecrest 2019c 2432:ANSS: Ridgecrest 2019c 2420:"Regional Information" 2416:ANSS: Ridgecrest 2019a 2404:ANSS: Ridgecrest 2019c 2400:ANSS: Ridgecrest 2019b 2396:ANSS: Ridgecrest 2019a 2304:ANSS: Ridgecrest 2019d 2292:ANSS: Ridgecrest 2019c 2280:ANSS: Ridgecrest 2019b 2268:ANSS: Ridgecrest 2019a 1962: 1890: 1747: 1739: 838:, and as far south as 832:Sacramento, California 787: 778: 761:, and as far south as 755:San Francisco Bay Area 753:, as far north as the 683:Ridgecrest, California 187:D: 2020-06-04 01:32:11 179:C: 2019-07-06 03:19:52 171:B: 2019-07-05 11:07:53 163:A: 2019-07-04 17:33:49 6648:1954 Churchill County 6608:Earthquakes in Nevada 6529:1987 Whittier Narrows 6378:1968 Borrego Mountain 6092:East Azerbaijan, Iran 6065:Cotabato, Philippines 5984:Cotabato, Philippines 5548:: 3–9. Archived from 5230:10.1785/gssrl.66.6.54 4956:Comprehensive Catalog 4940:Comprehensive Catalog 4924:Comprehensive Catalog 4908:Comprehensive Catalog 4102:– via Facebook. 4043:. KTLA5. July 4, 2019 3922:– via Facebook. 3920:"Caltrans District 9" 3810:. CBSLA. July 4, 2019 2916:. CBSLA. July 7, 2019 2434:. "Tectonic Summary". 2210:Earth sciences portal 2048:Historical seismicity 1959: 1888: 1745: 1737: 784: 776: 6632:1915 Pleasant Valley 6414:1986 Chalfant Valley 6390:1979 Imperial Valley 6336:1915 Imperial Valley 6287:2010 Baja California 6245:1915 Baja California 6041:(6.5, September 25) 6032:(5.6, September 24) 5996:Batanes, Philippines 5672:10.1029/2004TC001645 5495:10.1029/2000JB900328 5450:10.1029/2001GL013091 5287:10.1029/2006JB004721 5029:10.1029/2000JB900315 4870:Hauksson et al. 1995 4855:Hauksson et al. 1995 4843:Hauksson et al. 1995 4833:, p. 92, 5.2.8. 4821:, p. 90, 5.2.7. 4809:, p. 93, 5.2.9. 4793:, p. 86, 5.2.6. 4765:, p. 84, 5.2.5. 4657:, p. 77, 5.2.3. 4633:, p. 75, 5.2.1. 4594:, pp. 603, 604. 4568:McClusky et al. 2001 4246:. KTLA. July 4, 2019 3653:. KSBY. July 4, 2019 2846:. KABC. July 5, 2019 2664:– via Reuters. 2656:. CNBC. July 4, 2019 2151: 5.3), 1962 (M 1847:Los Angeles Aqueduct 915:Events at or above M 6816: / 6736:Warm Springs Valley 6706:Independence Valley 6637:1932 Cedar Mountain 6269:1992 Cape Mendocino 6100:(6.4, November 26) 6050:(5.7, September 26) 5851:Earthquakes in 2019 5733:2019Sci...366..346R 5663:2005Tecto..24.3009W 5486:2001JGR...106.2245M 5441:2001GeoRL..28.3369M 5415:Bulletin of the ISC 5370:2008BuSSA..98..931H 5322:1998JGR...10327033H 5279:2007JGRB..112.6309H 5222:1995SeiRL..66f..54H 5191:10.3133/ofr20181155 5121:2005Geo....33..505F 5068:1990Tecto...9..311D 5020:2001JGR...106..771B 4977:1999Geo....27..601B 4777:, pp. 89, 151. 4645:, pp. 83, 138. 4501:Frankel et al. 2008 4470:Frankel et al. 2008 4432:, p. 14, §2.2. 4414:Frankel et al. 2008 4366:Frankel et al. 2008 4337:Frankel et al. 2008 4325:Frankel et al. 2008 4296:Frankel et al. 2008 2788:earthquake.usgs.gov 2030:Coso Volcanic Field 1827:California Governor 1784:One person died in 920: 911:  mainshock. 790:At 10:02 a.m. 743:Southern California 653:~1,200 (≥2.5 M 544: / 23: 6854:2019 in California 6820:35.766°N 117.605°W 6642:1934 Hansel Valley 6493:1957 San Francisco 6348:1925 Santa Barbara 6239:1906 San Francisco 6233:1892 Laguna Salada 6120:(6.8, December 15) 5908:Luzon, Philippines 5811:authoritative data 5796:authoritative data 5781:authoritative data 5573:10.1785/0220190309 5378:10.1785/0120070186 4892:Scientific sources 4607:Miller et al. 2001 4580:Miller et al. 2001 4486:Miller et al. 2001 4444:, p. 27,034; 4341:Miller et al. 2001 4313:Miller et al. 2001 4140:The New York Times 2069:In March 1946 an M 1963: 1891: 1748: 1740: 914: 885:, as far south as 788: 779: 595:$ 5.3 billion 548:35.766°N 117.605°W 21: 6765: 6764: 6752:Geology of Nevada 6721:Petrified Springs 6622:1872 Owens Valley 6574: 6573: 6541:1991 Sierra Madre 6384:1971 San Fernando 6227:1872 Owens Valley 6153: 6152: 6094:(5.9, November 8) 6030:Kashmir, Pakistan 5885:Lombok, Indonesia 5870:(6.7, January 20) 5727:(6463): 346–351, 5480:(B2): 2245–2263. 5435:(17): 3369–3372. 5331:10.1029/98JB01390 5161:978-0-8137-0011-3 4404:, pp. 2, 14. 4199:Los Angeles Times 4181:Given et al. 2018 4120:Los Angeles Times 4020:Los Angeles Times 3905:Los Angeles Times 3879:. NBC Los Angeles 2941:Los Angeles Times 2712:Los Angeles Times 2594:Los Angeles Times 2516:Belfast Telegraph 2483:Los Angeles Times 2196:California portal 1971:San Andreas Fault 1821:Hours after the M 1722: 1721: 891:Las Vegas, Nevada 816:strike-slip fault 671: 670: 621:Peak acceleration 6901: 6844:2019 earthquakes 6831: 6830: 6828: 6827: 6826: 6825:35.766; -117.605 6821: 6817: 6814: 6813: 6812: 6809: 6794: 6793: 6792: 6782: 6781: 6780: 6773: 6601: 6594: 6587: 6578: 6577: 6559:2008 Chino Hills 6523:1981 Westmorland 6511:1979 Coyote Lake 6432:1992 Joshua Tree 6426:1989 Loma Prieta 6402:1984 Morgan Hill 6342:1918 San Jacinto 6330:1899 San Jacinto 6324:1898 Mare Island 6281:1999 Hector Mine 6257:1952 Kern County 6215:1838 San Andreas 6180: 6173: 6166: 6157: 6156: 6048:Istanbul, Turkey 6039:Ambon, Indonesia 5841: 5834: 5827: 5818: 5817: 5761: 5744: 5718: 5699: 5697: 5690: 5676: 5674: 5639: 5608: 5598: 5584: 5567:(4): 1971–1978. 5553: 5530: 5515: 5513: 5499: 5497: 5462: 5452: 5419: 5405: 5401:ISC-EHB Bulletin 5389: 5355: 5343: 5333: 5298: 5264: 5233: 5207: 5195: 5193: 5173: 5132: 5129:10.1130/G21274.1 5106: 5094: 5092: 5090: 5085:on July 22, 2021 5084: 5078:. 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News Channel 9 3726: 3720: 3719: 3717: 3715: 3699: 3693: 3692: 3690: 3688: 3679:. 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1701: 1677: 1653: 1629: 1605: 1581: 1557: 1533: 1509: 1485: 1461: 1437: 1413: 1389: 1365: 1341: 1317: 1293: 1269: 1245: 1221: 1197: 1173: 1149: 1125: 1101: 1077: 1053: 1029: 1005: 981: 957: 950: 921: 913: 836:Phoenix, Arizona 704: 616: 614: 602: 559: 558: 556: 555: 554: 553:35.766; -117.605 549: 545: 542: 541: 540: 537: 480: 463: 446: 429: 354: 352: 339: 337: 324: 322: 309: 307: 139: 138: 125: 124: 111: 110: 97: 96: 83: 82: 69: 68: 55: 54: 41: 40: 34: 24: 20: 6909: 6908: 6904: 6903: 6902: 6900: 6899: 6898: 6849:2019 in Arizona 6834: 6833: 6824: 6822: 6818: 6815: 6810: 6807: 6805: 6803: 6802: 6800: 6790: 6788: 6778: 6776: 6768: 6766: 6761: 6740: 6679: 6669:2019 Ridgecrest 6653:1992 St. George 6610: 6605: 6575: 6570: 6547:2000 Yountville 6505:1973 Point Mugu 6499:1969 Santa Rosa 6485: 6479: 6468:2019 Ridgecrest 6462:2014 South Napa 6450:2003 San Simeon 6444:1994 Northridge 6360:1933 Long Beach 6338:(6.3 & 6.3) 6304: 6298: 6293:2019 Ridgecrest 6221:1857 Fort Tejon 6195: 6189: 6184: 6154: 6149: 6123: 6106: 6098:Durrës, Albania 6080: 6075:6.5, October 31 6072:6.6, October 29 6069:6.4, October 16 6053: 6018: 6015:(6.9, August 2) 6001: 5959: 5954:Yamagata, Japan 5936: 5919: 5916:(6.4, April 23) 5910:(6.1, April 22) 5904:(6.1, April 18) 5902:Hualien, Taiwan 5890: 5887:(5.6, March 17) 5873: 5868:Coquimbo, Chile 5856: 5845: 5768: 5716: 5707: 5705:Further reading 5702: 5695: 5688: 5596: 5511: 5353: 5262: 5257: 5253: 5246: 5205: 5162: 5104: 5088: 5086: 5082: 5051: 5014:(B1): 771–785. 4894: 4889: 4888: 4880: 4876: 4868: 4861: 4853: 4849: 4841: 4837: 4831:Roquemore 1981a 4829: 4825: 4819:Roquemore 1981a 4817: 4813: 4807:Roquemore 1981a 4801: 4797: 4791:Roquemore 1981a 4785: 4781: 4773: 4769: 4763:Roquemore 1981a 4761: 4757: 4749: 4745: 4729: 4725: 4709: 4705: 4697: 4693: 4685: 4681: 4665: 4661: 4655:Roquemore 1981a 4653: 4649: 4641: 4637: 4631:Roquemore 1981a 4629: 4625: 4617: 4613: 4609:, p. 2245. 4605: 4598: 4590: 4586: 4582:, p. 2259. 4578: 4574: 4570:, p. 3371. 4566: 4562: 4550: 4546: 4538: 4531: 4523: 4519: 4511: 4507: 4499: 4492: 4488:, p. 2254. 4480: 4476: 4468: 4464: 4456: 4452: 4440: 4436: 4430:Roquemore 1981a 4428: 4424: 4412: 4408: 4402:Roquemore 1981a 4400: 4396: 4388: 4384: 4376: 4372: 4363: 4359: 4351: 4347: 4343:, p. 2260. 4335: 4331: 4327:, p. 1671. 4323: 4319: 4310: 4306: 4302:, p. 3369. 4294: 4290: 4276: 4274: 4263: 4259: 4249: 4247: 4242: 4241: 4237: 4229: 4225: 4217: 4213: 4203: 4201: 4191: 4187: 4179: 4175: 4170: 4166: 4156: 4154: 4132: 4128: 4111: 4107: 4097: 4095: 4091: 4090: 4086: 4076: 4074: 4066: 4060: 4056: 4046: 4044: 4039: 4038: 4034: 4024: 4022: 4012: 4003: 3993: 3991: 3982: 3981: 3977: 3967: 3965: 3964:on July 6, 2019 3954: 3950: 3931: 3927: 3918: 3917: 3913: 3896: 3892: 3882: 3880: 3873: 3864: 3853: 3849: 3839: 3837: 3827: 3823: 3813: 3811: 3806: 3805: 3801: 3791: 3789: 3779: 3772: 3762: 3760: 3750: 3746: 3736: 3734: 3727: 3723: 3713: 3711: 3710:on July 4, 2019 3700: 3696: 3686: 3684: 3683:on July 5, 2019 3671: 3670: 3666: 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California 809: 801: 771: 763:Baja California 717: 703: 658: 656: 652: 642: 640: 608: 606: 552: 550: 546: 543: 538: 535: 533: 531: 530: 479: 462: 445: 428: 359:Local time 350: 348: 335: 333: 320: 318: 305: 303: 291:Local date 144: 143: 142: 141: 140: 132: 131: 130: 126: 118: 117: 116: 112: 104: 103: 102: 98: 90: 89: 88: 84: 76: 75: 74: 70: 62: 61: 60: 56: 48: 47: 46: 42: 17: 12: 11: 5: 6907: 6897: 6896: 6891: 6886: 6881: 6876: 6871: 6866: 6864:2019 in Nevada 6861: 6859:2019 in Mexico 6856: 6851: 6846: 6799: 6798: 6796:Earth sciences 6786: 6763: 6762: 6760: 6759: 6754: 6748: 6746: 6745:Related topics 6742: 6741: 6739: 6738: 6733: 6728: 6723: 6718: 6713: 6708: 6703: 6698: 6693: 6687: 6685: 6681: 6680: 6678: 6677: 6672: 6666: 6661: 6656: 6650: 6645: 6639: 6634: 6629: 6624: 6618: 6616: 6612: 6611: 6604: 6603: 6596: 6589: 6581: 6572: 6571: 6569: 6568: 6562: 6556: 6553:2007 Alum Rock 6550: 6544: 6538: 6532: 6526: 6520: 6517:1980 Livermore 6514: 6508: 6502: 6496: 6489: 6487: 6481: 6480: 6478: 6477: 6471: 6465: 6459: 6453: 6447: 6441: 6435: 6429: 6423: 6417: 6411: 6405: 6399: 6393: 6387: 6381: 6375: 6369: 6366:1940 El Centro 6363: 6357: 6351: 6345: 6339: 6333: 6327: 6321: 6315: 6308: 6306: 6300: 6299: 6297: 6296: 6290: 6284: 6278: 6272: 6266: 6260: 6254: 6248: 6242: 6236: 6230: 6224: 6218: 6212: 6206: 6199: 6197: 6191: 6190: 6183: 6182: 6175: 6168: 6160: 6151: 6150: 6148: 6147: 6141: 6135: 6128: 6125: 6124: 6122: 6121: 6114: 6112: 6108: 6107: 6105: 6104: 6095: 6088: 6086: 6082: 6081: 6079: 6078: 6077: 6076: 6073: 6070: 6061: 6059: 6055: 6054: 6052: 6051: 6045: 6036: 6026: 6024: 6020: 6019: 6017: 6016: 6009: 6007: 6003: 6002: 6000: 5999: 5998:(5.9, July 27) 5993: 5992:(7.3, July 14) 5987: 5981: 5980: 5979: 5976: 5967: 5965: 5961: 5960: 5958: 5957: 5956:(6.4, June 18) 5951: 5950:(5.8, June 17) 5948:Sichuan, China 5944: 5942: 5938: 5937: 5935: 5934: 5927: 5925: 5921: 5920: 5918: 5917: 5911: 5905: 5898: 5896: 5892: 5891: 5889: 5888: 5881: 5879: 5875: 5874: 5872: 5871: 5864: 5862: 5858: 5857: 5844: 5843: 5836: 5829: 5821: 5815: 5814: 5799: 5784: 5767: 5766:External links 5764: 5763: 5762: 5706: 5703: 5701: 5700: 5678: 5677: 5641: 5640: 5622:(4): 327–330. 5610: 5609: 5605:10.3133/pp1527 5586: 5585: 5555: 5554: 5532: 5531: 5517: 5516: 5501: 5500: 5464: 5463: 5420: 5406: 5391: 5390: 5364:(3): 931–948. 5345: 5344: 5300: 5299: 5255: 5251: 5244: 5235: 5234: 5197: 5196: 5175: 5174: 5160: 5134: 5133: 5115:(6): 505–508. 5096: 5095: 5062:(2): 311–340. 5043: 5042: 4998: 4997: 4971:(7): 601–604. 4960: 4944: 4928: 4912: 4895: 4893: 4890: 4887: 4886: 4874: 4859: 4847: 4835: 4823: 4811: 4805:, p. 94; 4795: 4789:, p. 90; 4779: 4767: 4755: 4743: 4723: 4703: 4701:, p. 602. 4691: 4689:, p. 771. 4679: 4659: 4647: 4635: 4623: 4621:, p. 932. 4611: 4596: 4584: 4572: 4560: 4544: 4542:, p. 854. 4529: 4527:, p. 315. 4517: 4515:, p. 860. 4505: 4490: 4484:, p. 12; 4474: 4462: 4460:, p. 328. 4450: 4434: 4422: 4416:, p. 56; 4406: 4394: 4382: 4370: 4357: 4355:, p. 508. 4345: 4339:, p. 45; 4329: 4317: 4304: 4300:Wesnousky 2005 4288: 4257: 4235: 4223: 4211: 4185: 4173: 4164: 4126: 4105: 4084: 4054: 4032: 4001: 3990:. July 4, 2019 3975: 3948: 3941:) – via 3925: 3911: 3890: 3862: 3847: 3821: 3799: 3770: 3744: 3721: 3694: 3664: 3635: 3613: 3591: 3569: 3547: 3525: 3503: 3481: 3459: 3437: 3415: 3393: 3371: 3349: 3327: 3305: 3283: 3261: 3239: 3217: 3195: 3173: 3151: 3129: 3107: 3085: 3063: 3041: 3019: 2997: 2975: 2953: 2927: 2905: 2879: 2857: 2835: 2812: 2800: 2775: 2753: 2724: 2693: 2682:. July 4, 2019 2667: 2634: 2607: 2596:. July 4, 2019 2581: 2559: 2536: 2503: 2461: 2436: 2424: 2408: 2388: 2362: 2336: 2308: 2296: 2284: 2272: 2259: 2258: 2256: 2253: 2252: 2251: 2245: 2240: 2235: 2230: 2225: 2220: 2214: 2213: 2199: 2183: 2180: 2172: 2168: 2164: 2156: 2152: 2148: 2144: 2138: 2122: 2115: 2109: 2102: 2087: 2081: 2070: 2061: 2049: 2046: 1953: 1950: 1925: 1922: 1917: 1913: 1882: 1879: 1874: 1870:Dr. Lucy Jones 1822: 1818: 1815: 1813: 1810: 1797: 1794: 1762:U.S. Route 395 1731: 1728: 1726: 1723: 1720: 1719: 1717: 1714: 1711: 1708: 1705: 1702: 1696: 1695: 1693: 1690: 1687: 1684: 1681: 1678: 1672: 1671: 1669: 1666: 1663: 1660: 1657: 1654: 1652:August 22 1648: 1647: 1645: 1642: 1639: 1636: 1633: 1630: 1624: 1623: 1621: 1618: 1615: 1612: 1609: 1606: 1600: 1599: 1597: 1594: 1591: 1588: 1585: 1582: 1576: 1575: 1573: 1570: 1567: 1564: 1561: 1558: 1552: 1551: 1549: 1546: 1543: 1540: 1537: 1534: 1528: 1527: 1525: 1522: 1519: 1516: 1513: 1510: 1504: 1503: 1501: 1498: 1495: 1492: 1489: 1486: 1480: 1479: 1477: 1474: 1471: 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6448: 6445: 6442: 6439: 6438:1992 Big Bear 6436: 6433: 6430: 6427: 6424: 6421: 6418: 6415: 6412: 6409: 6406: 6403: 6400: 6397: 6396:1983 Coalinga 6394: 6391: 6388: 6385: 6382: 6379: 6376: 6373: 6370: 6367: 6364: 6361: 6358: 6355: 6352: 6349: 6346: 6343: 6340: 6337: 6334: 6331: 6328: 6325: 6322: 6319: 6316: 6313: 6310: 6309: 6307: 6301: 6294: 6291: 6288: 6285: 6282: 6279: 6276: 6273: 6270: 6267: 6264: 6261: 6258: 6255: 6252: 6249: 6246: 6243: 6240: 6237: 6234: 6231: 6228: 6225: 6222: 6219: 6216: 6213: 6210: 6207: 6204: 6201: 6200: 6198: 6192: 6188: 6181: 6176: 6174: 6169: 6167: 6162: 6161: 6158: 6146: 6142: 6139: 6136: 6133: 6130: 6129: 6126: 6119: 6116: 6115: 6113: 6109: 6103: 6099: 6096: 6093: 6090: 6089: 6087: 6083: 6074: 6071: 6068: 6067: 6066: 6063: 6062: 6060: 6056: 6049: 6046: 6044: 6040: 6037: 6035: 6031: 6028: 6027: 6025: 6021: 6014: 6011: 6010: 6008: 6004: 5997: 5994: 5991: 5988: 5986:(5.6, July 9) 5985: 5982: 5977: 5974: 5973: 5972: 5969: 5968: 5966: 5962: 5955: 5952: 5949: 5946: 5945: 5943: 5939: 5933:(8.0, May 26) 5932: 5929: 5928: 5926: 5922: 5915: 5912: 5909: 5906: 5903: 5900: 5899: 5897: 5893: 5886: 5883: 5882: 5880: 5876: 5869: 5866: 5865: 5863: 5859: 5855: 5852: 5849: 5842: 5837: 5835: 5830: 5828: 5823: 5822: 5819: 5812: 5808: 5804: 5800: 5797: 5793: 5789: 5785: 5782: 5778: 5774: 5770: 5769: 5760: 5756: 5752: 5748: 5743: 5738: 5734: 5730: 5726: 5722: 5715: 5709: 5708: 5694: 5687: 5686: 5680: 5679: 5673: 5668: 5664: 5660: 5656: 5652: 5648: 5643: 5642: 5637: 5633: 5629: 5625: 5621: 5617: 5612: 5611: 5606: 5602: 5595: 5594: 5588: 5587: 5582: 5578: 5574: 5570: 5566: 5562: 5557: 5556: 5551: 5547: 5543: 5539: 5534: 5533: 5529:(3): 854–862. 5528: 5524: 5519: 5518: 5510: 5509: 5503: 5502: 5496: 5491: 5487: 5483: 5479: 5475: 5471: 5466: 5465: 5460: 5456: 5451: 5446: 5442: 5438: 5434: 5430: 5426: 5421: 5417: 5416: 5411: 5407: 5403: 5402: 5397: 5393: 5392: 5387: 5383: 5379: 5375: 5371: 5367: 5363: 5359: 5352: 5347: 5346: 5341: 5337: 5332: 5327: 5323: 5319: 5315: 5311: 5307: 5302: 5301: 5296: 5292: 5288: 5284: 5280: 5276: 5272: 5268: 5261: 5259: 5247: 5237: 5236: 5231: 5227: 5223: 5219: 5215: 5211: 5204: 5199: 5198: 5192: 5187: 5182: 5177: 5176: 5171: 5167: 5163: 5157: 5153: 5149: 5145: 5141: 5136: 5135: 5130: 5126: 5122: 5118: 5114: 5110: 5103: 5098: 5097: 5081: 5077: 5073: 5069: 5065: 5061: 5057: 5050: 5045: 5044: 5039: 5035: 5030: 5025: 5021: 5017: 5013: 5009: 5005: 5000: 4999: 4994: 4990: 4986: 4982: 4978: 4974: 4970: 4966: 4961: 4957: 4953: 4949: 4945: 4941: 4937: 4933: 4929: 4925: 4921: 4917: 4913: 4909: 4905: 4901: 4897: 4896: 4883: 4878: 4872:, p. 58. 4871: 4866: 4864: 4857:, p. 54. 4856: 4851: 4844: 4839: 4832: 4827: 4820: 4815: 4808: 4804: 4799: 4792: 4788: 4783: 4776: 4771: 4764: 4759: 4753:, p. 89. 4752: 4747: 4740: 4736: 4732: 4727: 4720: 4716: 4712: 4707: 4700: 4695: 4688: 4683: 4676: 4672: 4668: 4663: 4656: 4651: 4644: 4639: 4632: 4627: 4620: 4615: 4608: 4603: 4601: 4593: 4588: 4581: 4576: 4569: 4564: 4557: 4553: 4548: 4541: 4536: 4534: 4526: 4521: 4514: 4509: 4503:, p. 45. 4502: 4497: 4495: 4487: 4483: 4478: 4471: 4466: 4459: 4454: 4448:, p. 10. 4447: 4443: 4438: 4431: 4426: 4419: 4415: 4410: 4403: 4398: 4391: 4386: 4379: 4374: 4368:, p. 46. 4367: 4361: 4354: 4349: 4342: 4338: 4333: 4326: 4321: 4314: 4308: 4301: 4297: 4292: 4284: 4272: 4268: 4261: 4245: 4239: 4232: 4227: 4220: 4215: 4200: 4196: 4189: 4182: 4177: 4168: 4153: 4149: 4141: 4137: 4130: 4122: 4121: 4116: 4109: 4094: 4088: 4072: 4065: 4058: 4042: 4036: 4021: 4017: 4010: 4008: 4006: 3989: 3985: 3979: 3963: 3959: 3952: 3944: 3940: 3936: 3929: 3921: 3915: 3907: 3906: 3901: 3894: 3878: 3871: 3869: 3867: 3858: 3851: 3836: 3832: 3825: 3809: 3803: 3788: 3784: 3777: 3775: 3759: 3755: 3748: 3732: 3725: 3709: 3705: 3698: 3682: 3678: 3674: 3668: 3652: 3646: 3644: 3642: 3640: 3623: 3617: 3601: 3595: 3579: 3573: 3557: 3551: 3535: 3529: 3513: 3507: 3491: 3485: 3469: 3463: 3447: 3441: 3425: 3419: 3403: 3397: 3381: 3375: 3359: 3353: 3337: 3331: 3315: 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2037: 2033: 2031: 2026: 2023: 2019: 2014: 2010: 2006: 2002: 1998: 1993: 1991: 1987: 1982: 1980: 1979:Garlock Fault 1976: 1975:Mojave Desert 1972: 1968: 1958: 1949: 1946: 1944: 1939: 1936: 1931: 1921: 1910: 1908: 1903: 1900: 1896: 1887: 1878: 1871: 1866: 1864: 1860: 1856: 1852: 1848: 1843: 1839: 1835: 1831: 1828: 1809: 1806: 1804: 1793: 1791: 1787: 1782: 1780: 1779:Granada Hills 1776: 1771: 1767: 1763: 1759: 1754: 1744: 1736: 1718: 1715: 1712: 1709: 1706: 1703: 1698: 1697: 1694: 1691: 1688: 1685: 1682: 1679: 1674: 1670: 1667: 1664: 1661: 1658: 1655: 1650: 1646: 1643: 1640: 1637: 1634: 1631: 1626: 1625: 1622: 1619: 1616: 1613: 1610: 1607: 1602: 1601: 1598: 1595: 1592: 1589: 1586: 1583: 1578: 1577: 1574: 1571: 1568: 1565: 1562: 1559: 1554: 1553: 1550: 1547: 1544: 1541: 1538: 1535: 1530: 1529: 1526: 1523: 1520: 1517: 1514: 1511: 1506: 1505: 1502: 1499: 1496: 1493: 1490: 1487: 1482: 1481: 1478: 1475: 1472: 1469: 1466: 1463: 1458: 1457: 1454: 1451: 1448: 1445: 1442: 1439: 1434: 1433: 1430: 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Retrieved 5080:the original 5059: 5055: 5011: 5007: 4968: 4964: 4955: 4939: 4923: 4907: 4884:, p. 7. 4877: 4850: 4838: 4826: 4814: 4798: 4782: 4770: 4758: 4746: 4726: 4706: 4694: 4682: 4662: 4650: 4638: 4626: 4614: 4587: 4575: 4563: 4547: 4520: 4508: 4482:Zellmer 1987 4477: 4465: 4453: 4446:Zellmer 1987 4437: 4425: 4409: 4397: 4390:Zellmer 1987 4385: 4378:Zellmer 1987 4373: 4360: 4348: 4332: 4320: 4307: 4291: 4281:– via 4275:. Retrieved 4260: 4248:. Retrieved 4238: 4226: 4214: 4202:. Retrieved 4198: 4188: 4176: 4167: 4155:. Retrieved 4151: 4139: 4129: 4118: 4108: 4096:. Retrieved 4087: 4075:. Retrieved 4070: 4057: 4045:. Retrieved 4035: 4023:. Retrieved 4019: 3992:. Retrieved 3987: 3978: 3966:. Retrieved 3962:the original 3951: 3928: 3914: 3903: 3893: 3881:. Retrieved 3850: 3838:. Retrieved 3834: 3824: 3812:. Retrieved 3802: 3790:. Retrieved 3786: 3761:. Retrieved 3757: 3747: 3735:. Retrieved 3724: 3712:. Retrieved 3708:the original 3697: 3685:. 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