623:
32:
554:'s rupture in the south (a distance of 130 km (81 mi)), the zone has been labeled the White Mountain seismic gap. The 1934 M6.3 Excelsior Mountains earthquake and the 1986 Chalfant Valley event were several smaller earthquakes that have occurred within the gap, and both generated limited surface faulting and some surface cracking in the Volcanic Tableland, which was created .7 million years ago from a major volcanic eruption that also formed the
973:
610:)) foreshock on July 20. All forty events that were recorded by the UNR and USGS stations before that event were within 2 km (1.2 mi) of its epicenter, and another 132 events that were considered aftershocks were documented in the remaining 24 hours leading up to the mainshock. One of these events, just over two hours after the primary foreshock, measured M4.7 with an intensity of IV (
151:
123:
109:
95:
53:
81:
67:
137:
39:
713:
other vertical (downslope) or extensional movement was also seen, especially on the 150 m (500 ft)-thick surface of the Bishop Tuff in the
Volcanic Tableland. There, the largest displacements were seen in the vicinity of Casa Diablo Mountain. The cracks were found primarily in loose sand, which made measurements difficult.
413:), the shock injured two people and caused property damage estimated at $ 2.7 million in the affected areas. There was a significant foreshock and aftershock sequence that included a few moderate events, and was the last in a series of three earthquakes that affected southern California and the northern
712:
Ground fractures that were deemed to be tectonic in nature were documented on about 10.5 kilometers (6.5 mi) of the White
Mountain Fault Zone from Silver Creek to Piute Creek. The cracks trended 350° and a maximum right-lateral slip of about 11 centimeters (4.3 in) was measured, though
427:
and an instrumented building in Bishop captured light to moderate readings from the event. The faulting reached the surface of the ground, but the maximum amount of measurable slip was limited to about 11 centimeters (4.3 in) of strike-slip motion along the White
Mountain Fault Zone. Other
482:
692:
were briefly trapped at the
Pleasant Valley Reservoir when a 150 ft (46 m) section of an access road was destroyed as a result of land movement. Both injuries that were reported (minor cuts and injuries from falling objects) occurred to the north in Chalfant Valley where 53
854:
had changes in the flow of water. The damage to the mobile homes in
Chalfant was also consistent with intensity VI shaking, with some of the homes moving laterally as much as 18 inches. Also in this classification was damage to pipe supports along a portion of the
490:
953:) on the Mercalli intensity scale and the second event was felt only. Ten days following the mainshock on July 31, a stronger aftershock occurred with a local magnitude of 5.8 and a maximum Mercalli intensity of VI (
440:
July 1986 was an unusually active month for moderate to strong earthquakes in
California, with three events occurring in less than two weeks, each with mild to moderate effects. The first of these shocks came on
925:
on the roof, both during the mainshock. The station at the earthen Long Valley Dam had produced many quality recordings since being put into operation in 1979 and saw mainshock accelerations of 0.09
700:
Many of the mobile homes were able to be remounted on their foundations, but 18â20 of the homes were unable to be repaired. The overall damage from the event was compared with the other events in
2346:
704:. While the Oceanside shock caused $ 200,000 in damage, the Palm Springs event caused an estimated $ 8 million in damage. Damage in from the Chalfant Valley event was estimated at $ 2.7 million.
536:
2037:
850:
In Bishop, intensity VI effects included broken windows and cracked walls in commercial and government buildings. Items fell from store shelves at grocery markets, streets were cracked, and
893:
The foreshock, mainshock, and the two largest aftershocks were recorded by strong motion stations that were operated by the
California Strong Motion Instrumentation Program (CSMIP) and the
905:, and several free field stations. The Chalfant strong motion station recorded the largest horizontal accelerations for the foreshock, mainshock, and the July 21 M5.6 aftershock of 0.28
428:
destructive and surface-rupturing earthquakes, as well as large volume volcanic eruptions, have occurred in the area. Although the series of shocks occurred within the White
Mountain
2824:
1616:
697:
were knocked off their foundations and two homes were destroyed. Nearly all the buildings in that small town were affected, with water and sewer lines broken there as well.
469:, and is a likely location for a very large earthquake. The same seismic gap theory (regarding the potential for a future large earthquake) had also been presented for the
590:(USGS) both operated seismograph networks in the region where the Chalfant Valley earthquake sequence occurred. The data that was captured was transmitted in real time to
2030:
2788:
1484:
957:). That aftershock was felt in California and western Nevada, broke windows and knocked items off shelves in Bishop, and light fixtures were damaged at the
1315:
31:
1429:
1071:
2366:
680:
at the First Sierra bank building fell onto the sidewalk. A Burger King restaurant had part of its ceiling come down. Northwest of Bishop, a portion of
2023:
664:
in the area that were operated by the UNR and the USGS. The primary foreshock's preferred fault plane solution indicated left-lateral slip on a fault
2046:
1365:
1053:
991:
1609:
2175:
1756:
1433:
1235:
2316:
2090:
252:
2707:
668:
N25°E, but neither the mainshock nor the largest aftershock conformed with their right-lateral slip striking N25°W and N15°W respectively.
1456:
2491:
2095:
1858:
1641:
2814:
2727:
2476:
2331:
1846:
1810:
1602:
1522:
1022:
645:
442:
174:
570:
mounds and hundreds of north-south oriented fault scarps, many of which are visible on topographic maps, via aerial photography, and
2351:
2120:
1625:
1477:
986:
812:
788:
764:
740:
321:
1567:
2672:
2486:
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2321:
2231:
2216:
2060:
1967:
1816:
1774:
1683:
188:
2778:
2637:
2516:
2441:
2236:
1828:
1725:
1707:
1386:
894:
606:). Activity increased on July 18 with several doublets then reduced again in the hours prior to the primary M5.7 (intensity V (
587:
528:
2717:
2692:
2602:
2541:
2311:
2281:
2150:
562:) produced in the event covers the northern Owens Valley as a rocky landform. The surface of the layered plateau is known as
547:
532:
2722:
2662:
2356:
2291:
2261:
2251:
2211:
2170:
2065:
1931:
1786:
1677:
1671:
1316:"Fault fractures formed in association with the 1986 Chalfant Valley, California, earthquake sequence: Preliminary report"
2536:
2506:
2421:
2411:
2376:
2221:
2155:
2145:
1979:
1822:
1665:
1549:
1470:
1407:
622:
470:
2140:
1401:
2793:
2712:
2617:
2561:
2511:
2496:
2471:
2451:
2436:
2406:
2391:
2386:
2371:
2341:
2246:
2190:
2185:
2105:
1997:
1961:
1949:
1937:
1906:
1870:
1864:
1840:
1780:
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1695:
1653:
1499:
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1493:
868:
2752:
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2607:
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2556:
2546:
2531:
2461:
2416:
2301:
2286:
2180:
2160:
2135:
2110:
2085:
2070:
1985:
1943:
1900:
1888:
1882:
1798:
1659:
583:
163:
2819:
2702:
2677:
2582:
2326:
2306:
2271:
2206:
1991:
1955:
1804:
602:
activity was found to have begun eighteen days prior to the main event on July 3, with the onset of a 3.5 event (
551:
949:
The day of the main event two aftershocks occurred (5.6 at 14:51 and 5.4 at 22:07) but the initial shock was V (
2742:
2687:
2667:
2657:
2652:
2647:
2612:
2551:
2526:
2456:
2401:
2241:
2080:
2075:
2003:
1912:
1876:
1834:
1543:
958:
729:
500:
454:
446:
406:
352:
340:
227:
652:
of the three largest events (the July 20 foreshock, the mainshock, and the largest aftershock) were primarily
917:. The instruments at the building on North Main street in Bishop recorded all four shocks and indicated 0.25
2737:
2642:
2592:
2521:
2336:
2256:
2130:
2115:
2100:
1750:
1713:
1647:
1561:
1534:
1516:
1187:
Smith, K.D.; Priestley, K.F. (1988), "The foreshock sequence of the 1986 Chalfant, California, earthquake",
603:
2768:
2732:
2697:
2632:
2587:
2501:
2466:
2446:
2431:
2426:
2381:
2361:
2296:
2276:
2266:
2165:
2125:
1973:
1894:
1792:
1701:
1689:
1204:
824:
804:
676:
In Bishop, windows were shattered and ceiling tiles fell in several buildings, and a portion of the brick
595:
402:
1294:
1273:
2773:
2747:
2627:
2622:
2226:
832:
653:
631:
520:
450:
1423:
1072:"Faulting in the 1986 Chalfant, California, Sequence: Local tectonics and earthquake source parameters"
2783:
1510:
1330:
1247:
1196:
1146:
1086:
888:
856:
776:
756:
524:
515:
over the last 2â4 million years, and was the scene of a very large earthquake in 1872 that generated
420:
387:
1274:"6.1 Quake Jars Eastern Sierra : State's 4th Temblor in Two Weeks Damages Homes, Traps Campers"
1209:
527:, a distance of approximately 100 kilometers (62 mi). Other large, surface rupturing events in
876:
701:
555:
481:
1438:
1170:
1162:
752:
383:
297:
193:
1299:
1278:
978:
571:
462:
398:
1452:
1112:
180:
1338:
1255:
1214:
1154:
1094:
657:
649:
516:
424:
287:
640:
on July 21 and caused the most damage in the sequence of events. The shock measured 6.2 M
1334:
1251:
1200:
1150:
1090:
867:) effects (including cracked windows and broken underground pipes) were present in the
800:
681:
665:
508:
2808:
1442:
1236:"The July 1986 Chalfant Valley, California, earthquake sequence: Preliminary results"
1174:
504:
2015:
1137:
Pinter, N. (1995), "Faulting on the
Volcanic Tableland, Owens Valley, California",
902:
872:
860:
780:
591:
496:
414:
1047:
1380:
901:
were captured from 11 stations, including a two-story steel frame building, the
694:
661:
563:
540:
466:
429:
379:
1430:
Processed strong-motion data from the
Chalfant Valley earthquakes of July 1986
968:
898:
851:
648:
and originated at a depth of approximately 10.8 kilometers (6.7 mi). The
391:
267:
254:
1594:
1403:
CSMIP strong-motion records from the Chalfant Valley, California earthquakes
1356:
828:
685:
599:
512:
1382:
The Intensity of the July 21, 1986, Chalfant Valley, California, Earthquake
1342:
1259:
1218:
677:
1462:
1113:"Source mechanisms of three moderate California earthquakes of July 1986"
938:
567:
461:, the earthquake near Palm Springs occurred on a portion of the southern
1166:
1016:
1406:, Report OSMS 86-06, California Strong Motion Instrumentation Program,
1098:
930:
859:
between the Upper, Middle, and Control Gorge Power Plants southeast of
689:
546:
As no large earthquake has occurred between the southern extent of the
491:
List of large volume volcanic eruptions in the Basin and Range Province
458:
432:, the region continues to have potential for a very large earthquake.
1314:
Lienkaemper, J.J.; Pezzopane, S.K.; Clark, M.M.; Rymer, M.J. (1987),
559:
558:
northwest of Bishop. An estimated 500 cubic kilometers of material (
1158:
621:
480:
1400:
Sherburne, R.W.; Parke, D.L.; Huang, M.J.; Shakal, A.F. (1988),
2019:
1598:
1466:
660:
and were especially well-constrained due to the dense array of
1018:
ISC-GEM Global Instrumental Earthquake Catalogue (1900â2009)
457:
occurred in an area thought to be capable of generating a
453:
as a M5.8 shock on July 13. While the earthquake off the
1448:
150:
1295:"More Big Temblors Could Rock Sierra in Next Few Days"
1582:
indicates earthquake resulting in at least 30 deaths
1049:
Seismicity of the United States, 1568â1989 (Revised)
511:
to the east. The valley was brought about by active
2761:
2575:
2199:
2053:
1922:
1741:
1632:
1439:
Eastern California Shear Zone Puzzles Seismologists
364:
347:
334:
313:
305:
293:
283:
246:
238:
222:
214:
199:
186:
173:
162:
1052:, U.S. Geological Survey Professional Paper 1527,
353:
1434:California Strong Motion Instrumentation Program
1323:Bulletin of the Seismological Society of America
1240:Bulletin of the Seismological Society of America
1189:Bulletin of the Seismological Society of America
1117:Bulletin of the Seismological Society of America
1079:Bulletin of the Seismological Society of America
1065:
1063:
1293:Ramos, George; Reich, Kenneth (July 23, 1986).
1272:Ramos, George; Reich, Kenneth (July 22, 1986).
449:and the second event occurred off the coast of
1587:indicates the deadliest earthquake of the year
541:Eastern CaliforniaâCentral Nevada seismic zone
2031:
1610:
1478:
1424:M 6.4 - 17km N of Dixon Lane-Meadow Creek, CA
598:and was digitized for later examination. The
8:
840:
21:
2825:1986 natural disasters in the United States
1229:
1227:
2038:
2024:
2016:
1617:
1603:
1595:
1485:
1471:
1463:
550:'s rupture and the northern extent of the
20:
1208:
1010:
1008:
1006:
507:mountain range to the west and the White-
499:, located at the western boundary of the
228:
1408:California Division of Mines and Geology
1366:United States Government Printing Office
1364:, U.S. Geological Survey Bulletin 2089,
1132:
1130:
1054:United States Government Printing Office
1041:
1039:
1037:
1035:
1033:
1031:
992:List of earthquakes in the United States
720:
548:1932 Cedar Mountains (Nevada) earthquake
1234:Cockerham, R.S.; Corbett, E.J. (1987),
1002:
1355:Stover, C. W.; Brewer, L. R. (1994),
1070:Smith, K.D.; Priestley, K.F. (2000),
7:
1046:Stover, C.W.; Coffman, J.L. (1993),
637:
395:
122:
108:
1449:International Seismological Centre
1023:International Seismological Centre
646:International Seismological Centre
465:system that has been designated a
94:
52:
14:
1426:â United States Geological Survey
1111:Pacheco, J.; Nabelek, J. (1988),
987:List of earthquakes in California
80:
66:
2047:Earthquakes in the United States
971:
724:Main shock Mercalli intensities
523:in the south to as far north as
149:
136:
135:
121:
107:
93:
79:
65:
51:
37:
30:
1387:United States Geological Survey
1358:United States earthquakes, 1986
588:United States Geological Survey
376:1986 Chalfant Valley earthquake
314:
22:1986 Chalfant Valley earthquake
38:
1:
684:was blocked temporarily by a
1385:, Open-File Report 89-135,
644: as measured by the
626:USGS ShakeMap for the event
2841:
886:
636:The mainshock occurred at
629:
584:University of Nevada, Reno
488:
445:on the Banning fault near
2815:Earthquakes in California
2708:2018 Southern Appalachian
1626:Earthquakes in California
1577:
1506:
1329:(1): 297, 298, 301, 302,
838:
723:
552:1872 Lone Pine earthquake
455:southern California coast
242:10 km (6.2 mi)
26:
2096:1812 San Juan Capistrano
1642:1812 San Juan Capistrano
959:National Weather Service
921:at ground level and 0.4
841:Stover & Brewer 1994
501:Basin and Range Province
443:July 8 with a M6.0 event
2728:2020 Monte Cristo Range
2477:1986 North Palm Springs
2332:1948 Desert Hot Springs
1859:1987 Superstition Hills
1847:1986 North Palm Springs
1811:1948 Desert Hot Springs
656:with a minor amount of
485:The Owens Valley region
203:July 21, 1986
2779:2010â11 Guy-Greenbrier
2352:1957 Andreanof Islands
2176:1892 VacavilleâWinters
2121:1867 Manhattan, Kansas
1757:1892 VacavilleâWinters
1343:10.1785/BSSA0770010297
1260:10.1785/BSSA0770010280
1219:10.1785/BSSA0780010172
1139:The Journal of Geology
627:
596:Menlo Park, California
486:
2789:2009âpresent Oklahoma
2678:2014 Southeast Alaska
2673:2014 Aleutian Islands
2487:1987 Whittier Narrows
2397:1968 Borrego Mountain
2347:1954 Churchill County
2322:1946 Aleutian Islands
2317:1944 CornwallâMassena
2217:1906 Aleutian Islands
2061:1585 Aleutian Islands
1968:1987 Whittier Narrows
1817:1968 Borrego Mountain
632:Strike-slip tectonics
625:
503:, is confined by the
484:
405:of 6.2 and a maximum
399:Pacific Daylight Time
2638:2010 Baja California
2492:1987 Imperial Valley
2482:1986 Chalfant Valley
2442:1979 Imperial Valley
2237:1915 Pleasant Valley
2232:1915 Imperial Valley
1853:1986 Chalfant Valley
1829:1979 Imperial Valley
1775:1915 Imperial Valley
1726:2010 Baja California
1684:1915 Baja California
889:Strong ground motion
857:Los Angeles Aqueduct
473:area near Chalfant.
2718:2020 Salt Lake City
2663:2013 Port Alexander
2603:2006 Gulf of Mexico
2517:1992 Cape Mendocino
2282:1932 Cedar Mountain
2151:1872 North Cascades
1708:1992 Cape Mendocino
1546:(6.0, September 13)
1497:Earthquakes in 1986
1379:Brewer, L. (1989),
1335:1987BuSSA..77..297L
1252:1987BuSSA..77..280C
1201:1988BuSSA..78..172S
1151:1995JG....103...73P
1091:2000BuSSA..90..813S
877:Carson City, Nevada
702:southern California
556:Long Valley Caldera
401:on July 21. With a
264: /
169:1986-07-21 14:42:28
23:
2723:2020 Central Idaho
2542:1993 Klamath Falls
2357:1957 San Francisco
2312:1940 New Hampshire
2292:1934 Hansel Valley
2262:1925 Santa Barbara
2252:1921 Sevier Valley
2212:1906 San Francisco
2171:1892 Laguna Salada
2101:1812 Santa Barbara
2091:1811â12 New Madrid
2066:1638 New Hampshire
1932:1957 San Francisco
1787:1925 Santa Barbara
1678:1906 San Francisco
1672:1892 Laguna Salada
1570:(5.1, November 30)
1564:(7.4, November 14)
1552:(5.7, October 10)
1523:North Palm Springs
1457:authoritative data
1389:, pp. 4â7, 10
1099:10.1785/0119990129
1056:, pp. 97, 177
628:
487:
407:Mercalli intensity
360:July 20 at 14:29
298:Eastern California
2802:
2801:
2537:1993 Scotts Mills
2507:1991 Sierra Madre
2422:1975 Near Islands
2412:1971 San Fernando
2377:1962 Cache Valley
2222:1909 Wabash River
2156:1882 Fort Collins
2146:1872 Owens Valley
2013:
2012:
1980:1991 Sierra Madre
1823:1971 San Fernando
1666:1872 Owens Valley
1592:
1591:
1537:(7.1, August 30)
1513:(5.0, January 31)
1300:Los Angeles Times
1279:Los Angeles Times
979:California portal
848:
847:
844:
572:satellite imagery
463:San Andreas Fault
372:
371:
335:Peak acceleration
2832:
2820:1986 earthquakes
2618:2008 Chino Hills
2562:1999 Hector Mine
2512:1992 Joshua Tree
2497:1989 Loma Prieta
2472:1984 Morgan Hill
2452:1981 Westmorland
2437:1979 Coyote Lake
2392:1965 Puget Sound
2387:1965 Rat Islands
2372:1959 Hebgen Lake
2342:1952 Kern County
2247:1918 San Jacinto
2191:1899 San Jacinto
2186:1898 Mare Island
2106:1838 San Andreas
2040:
2033:
2026:
2017:
1998:2008 Chino Hills
1962:1981 Westmorland
1950:1979 Coyote Lake
1871:1992 Joshua Tree
1865:1989 Loma Prieta
1841:1984 Morgan Hill
1781:1918 San Jacinto
1769:1899 San Jacinto
1763:1898 Mare Island
1720:1999 Hector Mine
1696:1952 Kern County
1654:1838 San Andreas
1619:
1612:
1605:
1596:
1487:
1480:
1473:
1464:
1412:
1411:
1397:
1391:
1390:
1376:
1370:
1369:
1368:, pp. 47â50
1363:
1352:
1346:
1345:
1320:
1311:
1305:
1304:
1290:
1284:
1283:
1269:
1263:
1262:
1231:
1222:
1221:
1212:
1184:
1178:
1177:
1134:
1125:
1124:
1108:
1102:
1101:
1076:
1067:
1058:
1057:
1043:
1026:
1025:
1012:
981:
976:
975:
974:
897:. A total of 36
843:, pp. 47â50
839:
821:
819:
797:
795:
773:
771:
749:
747:
721:
708:Surface faulting
650:focal mechanisms
639:
477:Tectonic setting
423:stations at the
403:moment magnitude
397:
378:struck southern
358:
330:
328:
316:
309:US$ 2.7 million
279:
278:
276:
275:
274:
269:
268:37.54°N 118.42°W
265:
262:
261:
260:
257:
233:
210:
208:
153:
152:
139:
138:
125:
124:
111:
110:
97:
96:
83:
82:
69:
68:
55:
54:
41:
40:
34:
24:
2840:
2839:
2835:
2834:
2833:
2831:
2830:
2829:
2805:
2804:
2803:
2798:
2794:2019 Ridgecrest
2757:
2753:2024 New Jersey
2713:2019 Ridgecrest
2683:2014 South Napa
2608:2006 Kiholo Bay
2598:2003 San Simeon
2571:
2567:2000 Yountville
2557:1998 Pymatuning
2547:1994 Northridge
2532:1992 St. George
2462:1983 Borah Peak
2417:1973 Point Mugu
2407:1969 Santa Rosa
2367:1958 Lituya Bay
2302:1936 State Line
2287:1933 Long Beach
2195:
2181:1895 Charleston
2161:1886 Charleston
2136:1870 Charlevoix
2111:1857 Fort Tejon
2086:1783 New Jersey
2071:1663 Charlevoix
2049:
2044:
2014:
2009:
1986:2000 Yountville
1944:1973 Point Mugu
1938:1969 Santa Rosa
1924:
1918:
1907:2019 Ridgecrest
1901:2014 South Napa
1889:2003 San Simeon
1883:1994 Northridge
1799:1933 Long Beach
1777:(6.3 & 6.3)
1743:
1737:
1732:2019 Ridgecrest
1660:1857 Fort Tejon
1634:
1628:
1623:
1593:
1588:
1583:
1573:
1529:Chalfant Valley
1502:
1491:
1459:for this event.
1420:
1415:
1399:
1398:
1394:
1378:
1377:
1373:
1361:
1354:
1353:
1349:
1318:
1313:
1312:
1308:
1292:
1291:
1287:
1271:
1270:
1266:
1233:
1232:
1225:
1210:10.1.1.919.4371
1195:(1): 173, 177,
1186:
1185:
1181:
1136:
1135:
1128:
1110:
1109:
1105:
1085:(4): 816, 824,
1074:
1069:
1068:
1061:
1045:
1044:
1029:
1021:, Version 2.0,
1014:
1013:
1004:
1000:
977:
972:
970:
967:
947:
903:Long Valley Dam
891:
885:
863:. Intensity V (
813:
811:
789:
787:
765:
763:
741:
739:
719:
710:
674:
643:
634:
620:
604:local magnitude
580:
517:surface rupture
493:
479:
471:White Mountains
438:
425:Long Valley Dam
357:
322:
320:
300:
272:
270:
266:
263:
258:
255:
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250:
232:
215:Local time
206:
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200:Local date
158:
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140:
132:
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130:
126:
118:
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102:
98:
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84:
76:
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70:
62:
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60:
56:
48:
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42:
17:
12:
11:
5:
2838:
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2807:
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2800:
2799:
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2755:
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2745:
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2720:
2715:
2710:
2705:
2703:2018 Anchorage
2700:
2695:
2690:
2685:
2680:
2675:
2670:
2665:
2660:
2655:
2650:
2645:
2640:
2635:
2630:
2625:
2620:
2615:
2610:
2605:
2600:
2595:
2590:
2585:
2583:2001 Nisqually
2579:
2577:
2573:
2572:
2570:
2569:
2564:
2559:
2554:
2549:
2544:
2539:
2534:
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2509:
2504:
2499:
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2454:
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2444:
2439:
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2429:
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2414:
2409:
2404:
2399:
2394:
2389:
2384:
2379:
2374:
2369:
2364:
2359:
2354:
2349:
2344:
2339:
2334:
2329:
2327:1947 Wisconsin
2324:
2319:
2314:
2309:
2307:1940 El Centro
2304:
2299:
2294:
2289:
2284:
2279:
2274:
2272:1931 Valentine
2269:
2264:
2259:
2254:
2249:
2244:
2239:
2234:
2229:
2224:
2219:
2214:
2209:
2207:1901 Richfield
2203:
2201:
2197:
2196:
2194:
2193:
2188:
2183:
2178:
2173:
2168:
2163:
2158:
2153:
2148:
2143:
2138:
2133:
2128:
2123:
2118:
2113:
2108:
2103:
2098:
2093:
2088:
2083:
2078:
2073:
2068:
2063:
2057:
2055:
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2050:
2045:
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2042:
2035:
2028:
2020:
2011:
2010:
2008:
2007:
2001:
1995:
1992:2007 Alum Rock
1989:
1983:
1977:
1971:
1965:
1959:
1956:1980 Livermore
1953:
1947:
1941:
1935:
1928:
1926:
1920:
1919:
1917:
1916:
1910:
1904:
1898:
1892:
1886:
1880:
1874:
1868:
1862:
1856:
1850:
1844:
1838:
1832:
1826:
1820:
1814:
1808:
1805:1940 El Centro
1802:
1796:
1790:
1784:
1778:
1772:
1766:
1760:
1754:
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1589:
1578:
1575:
1574:
1572:
1571:
1565:
1559:
1547:
1541:
1532:
1531:(6.2, July 21)
1526:
1520:
1514:
1507:
1504:
1503:
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1419:
1418:External links
1416:
1414:
1413:
1410:, pp. 1â3
1392:
1371:
1347:
1306:
1285:
1264:
1246:(1): 280â285,
1223:
1179:
1159:10.1086/629723
1126:
1123:(6): 1907â1909
1103:
1059:
1027:
1001:
999:
996:
995:
994:
989:
983:
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966:
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946:
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887:Main article:
884:
881:
869:Central Valley
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682:U.S. Route 395
673:
670:
641:
630:Main article:
619:
616:
586:(UNR) and the
579:
576:
539:delineate the
509:Inyo Mountains
478:
475:
437:
434:
417:in July 1986.
370:
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294:Areas affected
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273:37.54; -118.42
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2744:
2743:2022 Ferndale
2741:
2739:
2736:
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2726:
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2721:
2719:
2716:
2714:
2711:
2709:
2706:
2704:
2701:
2699:
2696:
2694:
2691:
2689:
2688:2016 Oklahoma
2686:
2684:
2681:
2679:
2676:
2674:
2671:
2669:
2668:2014 La Habra
2666:
2664:
2661:
2659:
2658:2011 Oklahoma
2656:
2654:
2653:2011 Virginia
2651:
2649:
2648:2011 Colorado
2646:
2644:
2641:
2639:
2636:
2634:
2631:
2629:
2626:
2624:
2621:
2619:
2616:
2614:
2613:2008 Illinois
2611:
2609:
2606:
2604:
2601:
2599:
2596:
2594:
2591:
2589:
2586:
2584:
2581:
2580:
2578:
2574:
2568:
2565:
2563:
2560:
2558:
2555:
2553:
2552:1995 Marathon
2550:
2548:
2545:
2543:
2540:
2538:
2535:
2533:
2530:
2528:
2527:1992 Big Bear
2525:
2523:
2520:
2518:
2515:
2513:
2510:
2508:
2505:
2503:
2500:
2498:
2495:
2493:
2490:
2488:
2485:
2483:
2480:
2478:
2475:
2473:
2470:
2468:
2465:
2463:
2460:
2458:
2457:1983 Coalinga
2455:
2453:
2450:
2448:
2445:
2443:
2440:
2438:
2435:
2433:
2430:
2428:
2425:
2423:
2420:
2418:
2415:
2413:
2410:
2408:
2405:
2403:
2402:1968 Illinois
2400:
2398:
2395:
2393:
2390:
2388:
2385:
2383:
2380:
2378:
2375:
2373:
2370:
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2255:
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2242:1916 Irondale
2240:
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2107:
2104:
2102:
2099:
2097:
2094:
2092:
2089:
2087:
2084:
2082:
2081:1755 Cape Ann
2079:
2077:
2076:1700 Cascadia
2074:
2072:
2069:
2067:
2064:
2062:
2059:
2058:
2056:
2052:
2048:
2041:
2036:
2034:
2029:
2027:
2022:
2021:
2018:
2005:
2004:2014 La Habra
2002:
1999:
1996:
1993:
1990:
1987:
1984:
1981:
1978:
1975:
1972:
1969:
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1963:
1960:
1957:
1954:
1951:
1948:
1945:
1942:
1939:
1936:
1933:
1930:
1929:
1927:
1921:
1914:
1913:2022 Ferndale
1911:
1908:
1905:
1902:
1899:
1896:
1893:
1890:
1887:
1884:
1881:
1878:
1877:1992 Big Bear
1875:
1872:
1869:
1866:
1863:
1860:
1857:
1854:
1851:
1848:
1845:
1842:
1839:
1836:
1835:1983 Coalinga
1833:
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1558:
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1536:
1533:
1530:
1527:
1525:(6.0, July 8)
1524:
1521:
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1512:
1509:
1508:
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1501:
1498:
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1443:Science Daily
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1080:
1073:
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1038:
1036:
1034:
1032:
1028:
1024:
1020:
1019:
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997:
993:
990:
988:
985:
984:
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969:
964:
962:
960:
956:
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944:
942:
940:
936:
932:
928:
924:
920:
916:
912:
908:
904:
900:
896:
890:
883:Strong motion
882:
880:
878:
874:
870:
866:
862:
858:
853:
842:
837:
834:
830:
826:
823:
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802:
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785:
782:
778:
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769:
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738:
737:
733:
731:
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714:
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703:
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683:
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671:
669:
667:
663:
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633:
624:
617:
615:
613:
609:
605:
601:
597:
593:
589:
585:
577:
575:
573:
569:
566:and features
565:
561:
557:
553:
549:
544:
542:
538:
534:
530:
526:
522:
518:
514:
510:
506:
505:Sierra Nevada
502:
498:
492:
483:
476:
474:
472:
468:
464:
460:
456:
452:
448:
444:
435:
433:
431:
426:
422:
421:Strong motion
418:
416:
412:
408:
404:
400:
393:
389:
385:
381:
377:
367:
363:
359:
350:
346:
343:
342:
337:
333:
329:
326:
319:
312:
308:
304:
301:United States
299:
296:
292:
289:
286:
282:
277:
249:
245:
241:
237:
234:
225:
221:
217:
213:
202:
198:
195:
192:
190:
185:
182:
179:
176:
172:
168:
165:
161:
33:
25:
19:
2784:2012 Brawley
2738:2021 Chignik
2643:2010 Indiana
2593:2003 Alabama
2576:21st century
2522:1992 Landers
2481:
2337:1949 Olympia
2257:1925 Montana
2200:20th century
2131:1868 Hayward
2116:1865 Memphis
1852:
1751:1868 Hayward
1714:1992 Landers
1648:1812 Ventura
1584:
1579:
1556:
1553:
1550:San Salvador
1538:
1528:
1519:(6.1, May 5)
1453:bibliography
1402:
1395:
1381:
1374:
1357:
1350:
1326:
1322:
1309:
1298:
1288:
1277:
1267:
1243:
1239:
1192:
1188:
1182:
1145:(1): 73â76,
1142:
1138:
1120:
1116:
1106:
1082:
1078:
1048:
1017:
1015:ISC (2015),
954:
950:
948:
937:on an upper
934:
926:
922:
918:
914:
910:
906:
892:
873:Death Valley
864:
861:Crowley Lake
849:
815:
791:
781:Death Valley
767:
743:
711:
699:
695:mobile homes
675:
662:seismometers
635:
611:
607:
592:Reno, Nevada
581:
545:
497:Owens Valley
494:
447:Palm Springs
439:
419:
415:Owens Valley
410:
375:
373:
339:
324:
306:Total damage
218:07:42:28 PDT
129:Death Valley
115:Palm Springs
18:
2733:2020 Sparta
2698:2018 Hawaii
2693:2018 Alaska
2633:2010 Eureka
2588:2002 Denali
2502:1990 Upland
2467:1983 Kaoiki
2447:1980 Eureka
2432:1975 Hawaii
2427:1975 Morris
2382:1964 Alaska
2362:1958 Huslia
2297:1935 Helena
2277:1932 Eureka
2267:1927 Lompoc
2166:1887 Sonora
2141:1871 LÄnaĘťi
2126:1868 Hawaii
1974:1990 Upland
1895:2010 Eureka
1793:1932 Eureka
1702:1980 Eureka
1690:1927 Lompoc
1568:João Câmara
945:Aftershocks
933:, and 0.24
913:, and 0.17
899:seismograms
658:normal-slip
654:strike-slip
564:Bishop Tuff
467:seismic gap
430:seismic gap
380:Mono County
288:Strike-slip
271: /
177: event
2809:Categories
2769:2001 Enola
2748:2023 Texas
2628:2008 Wells
2054:Historical
1940:(5.6, 5.7)
1861:(6.2, 6.6)
1759:(6.4, 6.2)
1633:Very Large
998:References
825:Santa Cruz
805:Sacramento
734:Locations
618:Earthquake
578:Foreshocks
489:See also:
392:California
368:2 injured
365:Casualties
348:Foreshocks
207:1986-07-21
166: time
101:Santa Cruz
59:Sacramento
16:Earthquake
2774:2008 Reno
2623:2008 Reno
2227:1914 Reno
1925:(5.0â5.9)
1825:(6.5â6.7)
1765:(5.8â6.4)
1753:(6.3â6.7)
1744:(6.0â6.9)
1674:(7.1â7.2)
1668:(7.4â7.9)
1656:(6.8â7.2)
1650:(7.1â7.5)
1644:(6.9â7.5)
1635:(7.0â7.9)
1205:CiteSeerX
1175:128689320
833:Oceanside
829:Las Vegas
814:MMI III (
717:Intensity
686:landslide
600:foreshock
521:Lone Pine
513:tectonics
451:Oceanside
317:intensity
247:Epicenter
223:Magnitude
87:Las Vegas
73:Oceanside
1923:Moderate
1544:Kalamata
1167:30071137
965:See also
961:office.
951:Moderate
939:abutment
865:Moderate
790:MMI IV (
777:Coalinga
768:Moderate
757:Chalfant
742:MMI VI (
666:striking
638:07:42:26
608:Moderate
568:fumarole
525:Big Pine
396:07:42:28
388:Chalfant
323:MMI VI (
259:118°25â˛W
143:Coalinga
1562:Hualien
1535:Vrancea
1517:Malatya
1455:and/or
1331:Bibcode
1248:Bibcode
1197:Bibcode
1147:Bibcode
1087:Bibcode
931:bedrock
909:, 0.46
766:MMI V (
690:Campers
459:tsunami
436:Preface
409:of VI (
256:37°32â˛N
205: (
2762:Swarms
1451:has a
1207:
1173:
1165:
955:Strong
875:, and
801:Fallon
753:Bishop
744:Strong
678:façade
672:Damage
560:tephra
535:, and
411:Strong
384:Bishop
325:Strong
194:ComCat
181:491308
45:Fallon
2006:(5.1)
2000:(5.4)
1994:(5.6)
1988:(5.0)
1982:(5.6)
1976:(5.7)
1970:(5.9)
1964:(5.9)
1958:(5.8)
1952:(5.7)
1946:(5.8)
1934:(5.7)
1915:(6.4)
1909:(6.4)
1903:(6.0)
1897:(6.5)
1891:(6.6)
1885:(6.7)
1879:(6.5)
1873:(6.2)
1867:(6.9)
1855:(6.2)
1849:(6.0)
1843:(6.2)
1837:(6.2)
1831:(6.4)
1819:(6.6)
1813:(6.4)
1807:(6.9)
1801:(6.4)
1795:(6.4)
1789:(6.8)
1783:(6.7)
1771:(6.7)
1742:Large
1734:(7.1)
1728:(7.2)
1722:(7.1)
1716:(7.3)
1710:(7.2)
1704:(7.3)
1698:(7.3)
1692:(7.3)
1686:(7.0)
1680:(7.8)
1662:(7.9)
1362:(PDF)
1319:(PDF)
1171:S2CID
1163:JSTOR
1075:(PDF)
852:wells
792:Light
612:Light
519:from
382:near
338:0.46
239:Depth
187:USGS-
1511:Ohio
1447:The
895:USGS
816:Weak
594:and
582:The
537:1954
533:1932
529:1915
495:The
386:and
374:The
351:5.7
315:Max.
284:Type
226:6.2
189:ANSS
1339:doi
1256:doi
1215:doi
1155:doi
1143:103
1095:doi
929:on
730:MMI
614:).
394:at
175:ISC
164:UTC
2811::
1441:â
1432:â
1337:,
1327:77
1325:,
1321:,
1297:.
1276:.
1254:,
1244:77
1242:,
1238:,
1226:^
1213:,
1203:,
1193:78
1191:,
1169:,
1161:,
1153:,
1141:,
1129:^
1121:78
1119:,
1115:,
1093:,
1083:90
1081:,
1077:,
1062:^
1030:^
1005:^
941:.
879:.
871:,
831:,
827:,
803:,
779:,
755:,
688:.
574:.
543:.
531:,
390:,
2039:e
2032:t
2025:v
1618:e
1611:t
1604:v
1585:âĄ
1580:â
1557:âĄ
1554:â
1539:â
1500:â
1494:â
1486:e
1479:t
1472:v
1341::
1333::
1303:.
1282:.
1258::
1250::
1217::
1199::
1157::
1149::
1097::
1089::
935:g
927:g
923:g
919:g
915:g
911:g
907:g
818:)
794:)
770:)
746:)
642:w
356:L
354:M
341:g
327:)
231:w
229:M
209:)
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