Knowledge (XXG)

1986 North Palm Springs earthquake

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492: 39: 670: 603:) and filing cabinets that were knocked over at city hall. At the Devers substation near North Palm Springs, 75 percent of the ceramic lightning arrestors and circuit breakers were damaged, and a 650,000 lb. transformer was dislocated 10 inches. A building collapsed at a drug and alcohol recovery facility and the White Water overpass was damaged due to lateral movement at its south 144: 88: 46: 102: 74: 130: 60: 116: 502:
Early research indicated that the Banning Fault comprises three segments and that the nearly-parallel Garnet Hill Fault lies just to the south. The epicenter of the July 8 earthquake was located in this convoluted area of faults between two segments of the Banning Fault and the Mission Creek strand
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and Kinemetrics Inc., a private company. Altogether, the networks comprised about 75 stations, mainly including ground response stations, but also included 17 buildings, nine dams, a power plant, and a freeway interchange. The stations were triggered at distances of up to 110 miles (180 km),
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to the north at 45°. As many of the aftershocks and previous events in the area showed oblique-reverse motion, researchers did not exclude the possibility that the rupture started as horizontal motion, then transitioned into movement that included some vertical motion.
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In North Palm Springs, four homes and 16 businesses were destroyed, and an additional 100 mobile homes and 100 businesses were damaged. In Whitewater Canyon, chimneys fell and three homes were destroyed; ceramic columns were broken and a
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in July 1986. Numerous strong motion instruments recorded the event, one of which showed relatively high accelerations. Between 29 and 40 people were injured, and financial losses were estimated to be in the range of $ 4.5–6 million.
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July 1986 was an unusually active month for moderate to strong earthquakes in California, with three events occurring in less than two weeks. Each had mild to moderate effects and began on July 8 with the event near
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was the dominant type of fault displacement at the pass). There are no great earthquakes that are known to have occurred at the pass, where the main trace of the SAF is marked by numerous
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in the Los Angeles area that were deemed to qualify. The effects at this level included cracked walls and windows and small landslides, and were more prevalent in the
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The San Andreas Fault (SAF) spans nearly the length of California, where much it is clearly identifiable for much of its length, especially from San Francisco to near
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was damaged at several locations and water had to be diverted into a lake bed, and up to 80,000 people lost power for a portion of the day. Two fires in
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of the San Andreas Fault, about 16 miles (25 km) northwest of where these two faults converge to form the Coachella Valley segment of the SAF. The
1664: 998: 1687: 1033: 794: 1250: 1070: 1816: 1397: 989:"Strong Quake in Desert Rolls Across Southland : 6.0 Temblor Awakens Residents in Wide Area; Damage Limited by Remote Site of Epicenter" 1957: 1731: 2348: 463:. There, the fault splays into several branches. Several unusual characteristics are displayed further to the southeast in the area of the 1097: 2132: 1736: 1499: 1282: 2455: 2368: 1972: 1451: 1243: 897: 720: 167: 1992: 1761: 1266: 1118: 688: 577: 320: 1208: 2313: 2127: 2037: 1962: 1872: 1857: 1701: 1608: 1457: 1415: 1324: 938: 181: 2419: 2278: 2157: 2122: 2082: 1877: 1493: 1469: 1366: 1348: 1169: 1083: 1074: 831: 755: 581:
with a strong motion duration of greater than three seconds at five of the closest stations. The strongest acceleration (0.778
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caused serious damage, including a glass company that sustained $ 45,000 in damage, and several other brush fires.
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in Palm Springs. Broken glass and cracks in walls and concrete columns (some severe) were also widespread there.
549: 541: 552:, which crosses the Banning and Mission Creek faults, was not immediately reopened due to buckled pavement. The 2383: 2328: 2308: 2298: 2293: 2288: 2253: 2192: 2167: 2097: 2042: 1882: 1721: 1716: 1644: 1553: 1517: 1475: 1184: 1079: 619: 583: 424: 411: 407: 369: 339: 220: 599:). At Desert Hot Springs, effects aligned with this rating were broken underground pipes (including a 5-inch 2378: 2283: 2233: 2162: 1977: 1897: 1771: 1756: 1741: 1391: 1354: 1288: 1202: 1175: 1157: 507:(as defined by first motions) showed pure right-lateral strike-slip on a fault trending west-northwest that 2409: 2373: 2338: 2273: 2228: 2142: 2107: 2087: 2072: 2067: 2022: 2002: 1937: 1917: 1907: 1806: 1766: 1614: 1535: 1433: 1342: 1330: 647: 643: 627: 365: 988: 2414: 2388: 2268: 2263: 1867: 526: 420: 377: 2424: 1151: 950: 790:
Seismicity of the United States, 1568–1989 (Revised) – U.S. Geological Survey Professional Paper 1527
600: 495: 553: 389: 294: 639: 448: 186: 993: 675: 464: 432: 385: 1093: 865: 376:). The shock occurred in a complex setting along the San Andreas Fault Zone where it bisects 173: 958: 901: 835: 635: 381: 471:
faulting) near the pass like there are along other segments (one researcher indicated that
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Strong motion data from the July 8, 1986 North Palm Springs earthquake and its aftershocks
504: 468: 280: 1064: 954: 824:"Strong-motion data from the July 8, 1986 North Palm Springs earthquake and aftershocks" 508: 966: 638:
areas. The area of perceptibility for the mainshock was large (130,500 km), from
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The shock was captured by strong motion stations that were operated by the
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northwest of Palm Springs, causing a separation of the deck and abutment.
866:"Source mechanisms of three moderate California earthquakes of July 1986" 615: 604: 483:. The Banning Fault lies about two miles to the south of these features. 476: 431:, the earthquake near Palm Springs occurred on a portion of the southern 822:
Porcella, R. L.; Etheredge, E. C.; Maley, R. P.; Switzer, J. C. (1987),
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and is a likely location for a very large future earthquake. The
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and was the first in a series of three earthquakes that affected
467:. There are no lateral stream offsets (that are associated with 1660: 1239: 1107: 716:
ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009)
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The San Andreas Fault Zone in San Gorgonio Pass, California
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occurred in an area thought to be capable of generating a
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indicates earthquake resulting in at least 30 deaths
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Historic Earthquakes: North Palm Springs, California
540:, which was closed until the following evening, and 2402: 2216: 1840: 1694: 1563: 1382: 1273: 346: 333: 312: 304: 286: 276: 239: 231: 215: 207: 192: 179: 166: 155: 937:; Given, D. D.; Allen, C. R. (December 1, 1986), 943:Bulletin of the Seismological Society of America 870:Bulletin of the Seismological Society of America 1228:indicates the deadliest earthquake of the year 1672: 1251: 1119: 987:Arnold, Roxane; Malnic, Eric (July 9, 1986). 864:Pacheco, J.; Nabelek, J. (December 1, 1988), 830:, Geological Survey Open File Report 87-155, 595:The maximum intensity for the event was VII ( 8: 1067:– Southern California Earthquake Data Center 28: 1018: 1016: 743: 741: 1679: 1665: 1657: 1258: 1244: 1236: 1126: 1112: 1104: 817: 815: 536:Other temporary roadway closures included 529:. The Windy Point Bridge was displaced on 27: 708: 706: 704: 423:on July 13. While the earthquake off the 419:5.8 shock that occurred off the coast of 412: 221: 1034:United States Government Printing Office 1032:, U.S. Geological Survey Bulletin 2089, 795:United States Government Printing Office 782: 780: 778: 776: 574:California Division of Mines and Geology 700: 787:Stover, C. W.; Coffman, J. L. (1993), 727:from the original on November 25, 2016 1080:M 6.0 – 6km SSW of Morongo Valley, CA 1023:Stover, C. W.; Brewer, L. R. (1994), 548:that were reopened later in the day. 87: 7: 912:from the original on August 15, 2020 801:from the original on April 13, 2019 1090:International Seismological Centre 1001:from the original on June 16, 2015 898:California Institute of Technology 846:from the original on June 16, 2015 721:International Seismological Centre 435:system that has been designated a 358:1986 North Palm Springs earthquake 45: 29:1986 North Palm Springs earthquake 14: 689:List of earthquakes in California 578:University of Southern California 101: 73: 18:Earthquake in Southern California 1688:Earthquakes in the United States 1043:from the original on May 1, 2017 900:, pp. 1, 4, 7, 92, 93, 96, 668: 614:) effects were widespread, from 142: 128: 114: 100: 86: 72: 58: 44: 37: 1084:United States Geological Survey 1075:United States Geological Survey 1026:United States earthquakes, 1986 832:United States Geological Survey 756:United States Geological Survey 570:United States Geological Survey 313: 23:1986 Chalfant Valley earthquake 443:occurred on July 21 along the 129: 59: 1: 1065:North Palm Springs Earthquake 896:(phd), Dissertation (Ph.D.), 751:PAGER-CAT Earthquake Catalog 525:was displaced at the Devers 115: 684:List of earthquakes in 1986 2482: 748:USGS (September 4, 2009), 441:Chalfant Valley earthquake 20: 2456:Earthquakes in California 2349:2018 Southern Appalachian 1267:Earthquakes in California 1218: 1147: 425:southern California coast 410:. The second event was a 235:10 km (6.2 mi) 33: 1737:1812 San Juan Capistrano 1283:1812 San Juan Capistrano 713:ISC (January 19, 2015), 21:Not to be confused with 2369:2020 Monte Cristo Range 2118:1986 North Palm Springs 1973:1948 Desert Hot Springs 1500:1987 Superstition Hills 1488:1986 North Palm Springs 1452:1948 Desert Hot Springs 2420:2010–11 Guy-Greenbrier 1993:1957 Andreanof Islands 1817:1892 Vacaville–Winters 1762:1867 Manhattan, Kansas 1398:1892 Vacaville–Winters 963:10.1785/BSSA0760061830 499: 360:occurred on July 8 at 196:July 8, 1986 2430:2009–present Oklahoma 2319:2014 Southeast Alaska 2314:2014 Aleutian Islands 2128:1987 Whittier Narrows 2038:1968 Borrego Mountain 1988:1954 Churchill County 1963:1946 Aleutian Islands 1958:1944 Cornwall–Massena 1858:1906 Aleutian Islands 1702:1585 Aleutian Islands 1609:1987 Whittier Narrows 1458:1968 Borrego Mountain 969:on September 23, 2015 754:, Version 2008_06.1, 527:electrical substation 494: 378:San Gorgonio Mountain 368:of 6.0 and a maximum 2279:2010 Baja California 2133:1987 Imperial Valley 2123:1986 Chalfant Valley 2083:1979 Imperial Valley 1878:1915 Pleasant Valley 1873:1915 Imperial Valley 1494:1986 Chalfant Valley 1470:1979 Imperial Valley 1416:1915 Imperial Valley 1367:2010 Baja California 1325:1915 Baja California 834:, pp. 1–5, 28, 797:, pp. 97, 177, 658:in southern Nevada. 496:Strong ground motion 2359:2020 Salt Lake City 2304:2013 Port Alexander 2244:2006 Gulf of Mexico 2158:1992 Cape Mendocino 1923:1932 Cedar Mountain 1792:1872 North Cascades 1349:1992 Cape Mendocino 1187:(6.0, September 13) 1138:Earthquakes in 1986 955:1986BuSSA..76.1830J 554:California Aqueduct 390:southern California 362:02:20:44 local time 295:Southern California 257: /  162:1986-07-08 09:20:44 30: 2466:1986 in California 2364:2020 Central Idaho 2183:1993 Klamath Falls 1998:1957 San Francisco 1953:1940 New Hampshire 1933:1934 Hansel Valley 1903:1925 Santa Barbara 1893:1921 Sevier Valley 1853:1906 San Francisco 1812:1892 Laguna Salada 1742:1812 Santa Barbara 1732:1811–12 New Madrid 1707:1638 New Hampshire 1573:1957 San Francisco 1428:1925 Santa Barbara 1319:1906 San Francisco 1313:1892 Laguna Salada 1211:(5.1, November 30) 1205:(7.4, November 14) 1193:(5.7, October 10) 1164:North Palm Springs 1098:authoritative data 1036:, pp. 32–41, 762:on October 4, 2016 646:in California, to 500: 370:Mercalli Intensity 2443: 2442: 2178:1993 Scotts Mills 2148:1991 Sierra Madre 2063:1975 Near Islands 2053:1971 San Fernando 2018:1962 Cache Valley 1863:1909 Wabash River 1797:1882 Fort Collins 1787:1872 Owens Valley 1654: 1653: 1621:1991 Sierra Madre 1464:1971 San Fernando 1307:1872 Owens Valley 1233: 1232: 1178:(7.1, August 30) 1154:(5.0, January 31) 994:Los Angeles Times 906:10.7907/54GN-M254 676:California portal 636:Palm Springs Area 498:map for the event 479:and north-facing 465:San Gorgonio Pass 433:San Andreas Fault 392:and the northern 386:San Gorgonio Pass 354: 353: 334:Peak acceleration 2473: 2461:1986 earthquakes 2259:2008 Chino Hills 2203:1999 Hector Mine 2153:1992 Joshua Tree 2138:1989 Loma Prieta 2113:1984 Morgan Hill 2093:1981 Westmorland 2078:1979 Coyote Lake 2033:1965 Puget Sound 2028:1965 Rat Islands 2013:1959 Hebgen Lake 1983:1952 Kern County 1888:1918 San Jacinto 1832:1899 San Jacinto 1827:1898 Mare Island 1747:1838 San Andreas 1681: 1674: 1667: 1658: 1639:2008 Chino Hills 1603:1981 Westmorland 1591:1979 Coyote Lake 1512:1992 Joshua Tree 1506:1989 Loma Prieta 1482:1984 Morgan Hill 1422:1918 San Jacinto 1410:1899 San Jacinto 1404:1898 Mare Island 1361:1999 Hector Mine 1337:1952 Kern County 1295:1838 San Andreas 1260: 1253: 1246: 1237: 1128: 1121: 1114: 1105: 1052: 1051: 1050: 1048: 1042: 1031: 1020: 1011: 1010: 1008: 1006: 984: 978: 977: 976: 974: 965:, archived from 949:(6): 1830–1833, 927: 921: 920: 919: 917: 884: 878: 877: 861: 855: 854: 853: 851: 840:10.3133/ofr87155 819: 810: 809: 808: 806: 784: 771: 770: 769: 767: 758:, archived from 745: 736: 735: 734: 732: 710: 678: 673: 672: 671: 654:in Arizona, and 558:Riverside County 455:Tectonic setting 447:Fault Zone near 417: 382:San Jacinto Peak 366:moment magnitude 363: 329: 327: 315: 308:$ 4.5–6 million 272: 271: 269: 268: 267: 262: 261:34.02°N 116.76°W 258: 255: 254: 253: 250: 226: 203: 201: 146: 145: 132: 131: 118: 117: 104: 103: 90: 89: 76: 75: 62: 61: 48: 47: 41: 31: 2481: 2480: 2476: 2475: 2474: 2472: 2471: 2470: 2446: 2445: 2444: 2439: 2435:2019 Ridgecrest 2398: 2394:2024 New Jersey 2354:2019 Ridgecrest 2324:2014 South Napa 2249:2006 Kiholo Bay 2239:2003 San Simeon 2212: 2208:2000 Yountville 2198:1998 Pymatuning 2188:1994 Northridge 2173:1992 St. George 2103:1983 Borah Peak 2058:1973 Point Mugu 2048:1969 Santa Rosa 2008:1958 Lituya Bay 1943:1936 State Line 1928:1933 Long Beach 1836: 1822:1895 Charleston 1802:1886 Charleston 1777:1870 Charlevoix 1752:1857 Fort Tejon 1727:1783 New Jersey 1712:1663 Charlevoix 1690: 1685: 1655: 1650: 1627:2000 Yountville 1585:1973 Point Mugu 1579:1969 Santa Rosa 1565: 1559: 1548:2019 Ridgecrest 1542:2014 South Napa 1530:2003 San Simeon 1524:1994 Northridge 1440:1933 Long Beach 1418:(6.3 & 6.3) 1384: 1378: 1373:2019 Ridgecrest 1301:1857 Fort Tejon 1275: 1269: 1264: 1234: 1229: 1224: 1214: 1170:Chalfant Valley 1143: 1132: 1100:for this event. 1061: 1056: 1055: 1046: 1044: 1040: 1029: 1022: 1021: 1014: 1004: 1002: 986: 985: 981: 972: 970: 929: 928: 924: 915: 913: 886: 885: 881: 863: 862: 858: 849: 847: 821: 820: 813: 804: 802: 786: 785: 774: 765: 763: 747: 746: 739: 730: 728: 719:, Version 2.0, 712: 711: 702: 697: 674: 669: 667: 664: 593: 566: 546:State Route 243 538:State Route 111 518: 505:focal mechanism 489: 473:thrust faulting 457: 445:White Mountains 416: 403: 321: 319: 297: 293: 265: 263: 259: 256: 251: 248: 246: 244: 243: 225: 208:Local time 199: 197: 193:Local date 151: 150: 149: 148: 147: 139: 138: 137: 133: 125: 124: 123: 119: 111: 110: 109: 105: 97: 96: 95: 91: 83: 82: 81: 77: 69: 68: 67: 63: 55: 54: 53: 49: 26: 19: 12: 11: 5: 2479: 2477: 2469: 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737: 699: 698: 696: 693: 692: 691: 686: 680: 679: 663: 660: 610:Intensity VI ( 592: 589: 565: 562: 550:State Route 62 542:State Route 74 517: 514: 488: 485: 456: 453: 414: 402: 399: 352: 351: 350:29–40 injured 348: 344: 343: 335: 331: 330: 317: 310: 309: 306: 302: 301: 288: 287:Areas affected 284: 283: 278: 274: 273: 266:34.02; -116.76 241: 237: 236: 233: 229: 228: 223: 217: 213: 212: 209: 205: 204: 194: 190: 189: 184: 177: 176: 171: 164: 163: 160: 153: 152: 141: 140: 135: 134: 127: 126: 121: 120: 113: 112: 107: 106: 99: 98: 93: 92: 85: 84: 79: 78: 71: 70: 65: 64: 57: 56: 51: 50: 43: 42: 36: 35: 34: 17: 13: 10: 9: 6: 4: 3: 2: 2478: 2467: 2464: 2462: 2459: 2457: 2454: 2453: 2451: 2436: 2433: 2431: 2428: 2426: 2423: 2421: 2418: 2416: 2413: 2411: 2408: 2407: 2405: 2401: 2395: 2392: 2390: 2387: 2385: 2384:2022 Ferndale 2382: 2380: 2377: 2375: 2372: 2370: 2367: 2365: 2362: 2360: 2357: 2355: 2352: 2350: 2347: 2345: 2342: 2340: 2337: 2335: 2332: 2330: 2329:2016 Oklahoma 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2310: 2309:2014 La Habra 2307: 2305: 2302: 2300: 2299:2011 Oklahoma 2297: 2295: 2294:2011 Virginia 2292: 2290: 2289:2011 Colorado 2287: 2285: 2282: 2280: 2277: 2275: 2272: 2270: 2267: 2265: 2262: 2260: 2257: 2255: 2254:2008 Illinois 2252: 2250: 2247: 2245: 2242: 2240: 2237: 2235: 2232: 2230: 2227: 2225: 2222: 2221: 2219: 2215: 2209: 2206: 2204: 2201: 2199: 2196: 2194: 2193:1995 Marathon 2191: 2189: 2186: 2184: 2181: 2179: 2176: 2174: 2171: 2169: 2168:1992 Big Bear 2166: 2164: 2161: 2159: 2156: 2154: 2151: 2149: 2146: 2144: 2141: 2139: 2136: 2134: 2131: 2129: 2126: 2124: 2121: 2119: 2116: 2114: 2111: 2109: 2106: 2104: 2101: 2099: 2098:1983 Coalinga 2096: 2094: 2091: 2089: 2086: 2084: 2081: 2079: 2076: 2074: 2071: 2069: 2066: 2064: 2061: 2059: 2056: 2054: 2051: 2049: 2046: 2044: 2043:1968 Illinois 2041: 2039: 2036: 2034: 2031: 2029: 2026: 2024: 2021: 2019: 2016: 2014: 2011: 2009: 2006: 2004: 2001: 1999: 1996: 1994: 1991: 1989: 1986: 1984: 1981: 1979: 1976: 1974: 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1549: 1546: 1543: 1540: 1537: 1534: 1531: 1528: 1525: 1522: 1519: 1518:1992 Big Bear 1516: 1513: 1510: 1507: 1504: 1501: 1498: 1495: 1492: 1489: 1486: 1483: 1480: 1477: 1476:1983 Coalinga 1474: 1471: 1468: 1465: 1462: 1459: 1456: 1453: 1450: 1447: 1444: 1441: 1438: 1435: 1432: 1429: 1426: 1423: 1420: 1417: 1414: 1411: 1408: 1405: 1402: 1399: 1396: 1393: 1390: 1389: 1387: 1381: 1374: 1371: 1368: 1365: 1362: 1359: 1356: 1353: 1350: 1347: 1344: 1341: 1338: 1335: 1332: 1329: 1326: 1323: 1320: 1317: 1314: 1311: 1308: 1305: 1302: 1299: 1296: 1293: 1290: 1287: 1284: 1281: 1280: 1278: 1272: 1268: 1261: 1256: 1254: 1249: 1247: 1242: 1241: 1238: 1227: 1222: 1217: 1210: 1207: 1204: 1201: 1199: 1196: 1192: 1189: 1186: 1183: 1181: 1177: 1174: 1171: 1168: 1166:(6.0, July 8) 1165: 1162: 1159: 1156: 1153: 1150: 1149: 1146: 1142: 1139: 1136: 1129: 1124: 1122: 1117: 1115: 1110: 1109: 1106: 1099: 1095: 1091: 1087: 1085: 1081: 1078: 1076: 1072: 1069: 1066: 1063: 1062: 1058: 1039: 1035: 1028: 1027: 1019: 1017: 1013: 1000: 996: 995: 990: 983: 980: 968: 964: 960: 956: 952: 948: 944: 940: 936: 935:Hutton, L. K. 932: 926: 923: 911: 907: 903: 899: 895: 894: 889: 883: 880: 875: 871: 867: 860: 857: 845: 841: 837: 833: 829: 825: 818: 816: 812: 800: 796: 792: 791: 783: 781: 779: 777: 773: 761: 757: 753: 752: 744: 742: 738: 726: 722: 718: 717: 709: 707: 705: 701: 694: 690: 687: 685: 682: 681: 677: 666: 661: 659: 657: 653: 649: 648:Bullhead City 645: 641: 637: 633: 629: 625: 621: 620:Pacific Beach 617: 613: 608: 606: 602: 598: 590: 588: 586: 585: 579: 575: 571: 564:Strong motion 563: 561: 559: 555: 551: 547: 543: 539: 534: 532: 528: 524: 515: 513: 510: 506: 497: 493: 486: 484: 482: 478: 474: 470: 466: 462: 454: 452: 450: 446: 442: 438: 434: 430: 426: 422: 418: 409: 400: 398: 395: 391: 387: 383: 379: 375: 371: 367: 359: 349: 345: 342: 341: 336: 332: 328: 325: 318: 311: 307: 303: 300: 299:United States 296: 292: 291:Inland Empire 289: 285: 282: 279: 275: 270: 242: 238: 234: 230: 227: 218: 214: 210: 206: 195: 191: 188: 185: 183: 178: 175: 172: 169: 165: 161: 158: 154: 94:Bullhead City 40: 32: 24: 16: 2425:2012 Brawley 2379:2021 Chignik 2284:2010 Indiana 2234:2003 Alabama 2217:21st century 2163:1992 Landers 2117: 1978:1949 Olympia 1898:1925 Montana 1841:20th century 1772:1868 Hayward 1757:1865 Memphis 1487: 1392:1868 Hayward 1355:1992 Landers 1289:1812 Ventura 1225: 1220: 1197: 1194: 1191:San Salvador 1179: 1163: 1160:(6.1, May 5) 1094:bibliography 1045:, retrieved 1025: 1003:. Retrieved 992: 982: 971:, retrieved 967:the original 946: 942: 931:Jones, L. M. 925: 914:, retrieved 892: 888:Allen, C. R. 882: 873: 869: 859: 848:, retrieved 827: 803:, retrieved 789: 766:December 20, 764:, retrieved 760:the original 750: 729:, retrieved 715: 632:Banning Pass 611: 609: 596: 594: 582: 567: 535: 519: 501: 458: 408:Palm Springs 404: 394:Owens Valley 373: 357: 355: 338: 323: 305:Total damage 211:02:20:44 PDT 15: 2374:2020 Sparta 2339:2018 Hawaii 2334:2018 Alaska 2274:2010 Eureka 2229:2002 Denali 2143:1990 Upland 2108:1983 Kaoiki 2088:1980 Eureka 2073:1975 Hawaii 2068:1975 Morris 2023:1964 Alaska 2003:1958 Huslia 1938:1935 Helena 1918:1932 Eureka 1908:1927 Lompoc 1807:1887 Sonora 1782:1871 LānaĘťi 1767:1868 Hawaii 1615:1990 Upland 1536:2010 Eureka 1434:1932 Eureka 1343:1980 Eureka 1331:1927 Lompoc 1209:JoĂŁo Câmara 805:October 29, 597:Very strong 523:transformer 469:strike-slip 437:seismic gap 374:Very strong 324:Very strong 281:Strike-slip 264: / 170: event 2450:Categories 2410:2001 Enola 2389:2023 Texas 2269:2008 Wells 1695:Historical 1581:(5.6, 5.7) 1502:(6.2, 6.6) 1400:(6.4, 6.2) 1274:Very Large 1047:October 6, 916:August 27, 850:August 28, 695:References 644:Ridgecrest 628:Seal Beach 622:area near 601:water main 487:Earthquake 461:Cajon Pass 347:Casualties 200:1986-07-08 159: time 52:Ridgecrest 2415:2008 Reno 2264:2008 Reno 1868:1914 Reno 1566:(5.0–5.9) 1466:(6.5–6.7) 1406:(5.8–6.4) 1394:(6.3–6.7) 1385:(6.0–6.9) 1315:(7.1–7.2) 1309:(7.4–7.9) 1297:(6.8–7.2) 1291:(7.1–7.5) 1285:(6.9–7.5) 1276:(7.0–7.9) 656:Las Vegas 624:San Diego 591:Intensity 477:sag ponds 421:Oceanside 322:MMI VII ( 316:intensity 240:Epicenter 216:Magnitude 108:Las Vegas 80:Oceanside 1564:Moderate 1185:Kalamata 1038:archived 1005:June 13, 999:Archived 973:June 13, 910:archived 890:(1954), 844:archived 799:archived 731:June 13, 725:archived 662:See also 616:La Jolla 605:abutment 372:of VII ( 252:116°46′W 1203:Hualien 1176:Vrancea 1158:Malatya 1096:and/or 951:Bibcode 429:tsunami 401:Preface 384:at the 364:with a 249:34°01′N 198: ( 2403:Swarms 1092:has a 640:Malibu 612:Strong 516:Damage 509:dipped 481:scarps 449:Bishop 337:0.778 187:ComCat 174:490261 136:Bishop 66:Malibu 1647:(5.1) 1641:(5.4) 1635:(5.6) 1629:(5.0) 1623:(5.6) 1617:(5.7) 1611:(5.9) 1605:(5.9) 1599:(5.8) 1593:(5.7) 1587:(5.8) 1575:(5.7) 1556:(6.4) 1550:(6.4) 1544:(6.0) 1538:(6.5) 1532:(6.6) 1526:(6.7) 1520:(6.5) 1514:(6.2) 1508:(6.9) 1496:(6.2) 1490:(6.0) 1484:(6.2) 1478:(6.2) 1472:(6.4) 1460:(6.6) 1454:(6.4) 1448:(6.9) 1442:(6.4) 1436:(6.4) 1430:(6.8) 1424:(6.7) 1412:(6.7) 1383:Large 1375:(7.1) 1369:(7.2) 1363:(7.1) 1357:(7.3) 1351:(7.2) 1345:(7.3) 1339:(7.3) 1333:(7.3) 1327:(7.0) 1321:(7.8) 1303:(7.9) 1041:(PDF) 1030:(PDF) 232:Depth 180:USGS- 1152:Ohio 1088:The 1049:2017 1007:2015 975:2015 918:2019 852:2017 807:2016 768:2017 733:2015 652:Yuma 650:and 642:and 634:and 618:and 544:and 531:I-10 380:and 356:The 314:Max. 277:Type 219:6.0 182:ANSS 122:Yuma 959:doi 902:doi 836:doi 626:to 168:ISC 157:UTC 2452:: 1082:– 1073:– 1015:^ 997:. 991:. 957:, 947:76 945:, 941:, 933:; 908:, 874:78 872:, 868:, 842:, 826:, 814:^ 793:, 775:^ 740:^ 723:, 703:^ 576:, 572:, 451:. 1680:e 1673:t 1666:v 1259:e 1252:t 1245:v 1226:‡ 1221:† 1198:‡ 1195:† 1180:† 1141:→ 1135:← 1127:e 1120:t 1113:v 1009:. 961:: 953:: 904:: 838:: 584:g 415:s 413:M 340:g 326:) 224:w 222:M 202:) 25:.

Index

1986 Chalfant Valley earthquake
1986 North Palm Springs earthquake is located in California
UTC
ISC
490261
ANSS
ComCat
Mw
34°01′N 116°46′W / 34.02°N 116.76°W / 34.02; -116.76
Strike-slip
Inland Empire
Southern California
United States
MMI VII (Very strong)
g
moment magnitude
Mercalli Intensity
San Gorgonio Mountain
San Jacinto Peak
San Gorgonio Pass
southern California
Owens Valley
Palm Springs
Ms
Oceanside
southern California coast
tsunami
San Andreas Fault
seismic gap
Chalfant Valley earthquake

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