Knowledge (XXG)

Oca-Ancón Fault System

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The vertical to subvertical Oca Fault segment in the western part of the fault system has a length of 265 kilometres (165 mi), running west–east through La Guajira, Colombia. It forms the northern boundary of the
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Audemard M., Franck A.; Singer P., André (1996a), "Active fault recognition in northwestern Venezuela and its seismogenic characterization: Neotectonic and paleoseismic approach",
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Gómez Tapias, Jorge; Montes Ramírez, Nohora E.; Almanza Meléndez, María F.; Alcárcel Gutiérrez, Fernando A.; Madrid Montoya, César A.; Diederix, Hans (2015).
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continuing into Venezuela. The fault segment with a slip rate of 0.2 to 0.8 millimetres (0.0079 to 0.0315 in) per year has been active since the
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type and extends for an approximate length of 830 km (520 mi). The Oca-Ancón Fault System is part of the diffuse boundary between the
2137: 394:. The movement rate of the Oca-Ancón Fault System is estimated at 2 millimetres (0.079 in) each year, more than most Venezuelan faults. 2097: 2082: 2410: 1501: 2167: 61: 2405: 2377: 1427: 1349: 2440: 2172: 2329: 1344: 1079: 1022: 2057: 2425: 2307: 2117: 2037: 566: 973: 87: 2381: 1420: 1854: 2177: 2152: 1595: 881: 931: 581: 1613: 1354: 911: 891: 404: 195: 80: 2435: 2415: 2187: 901: 2323: 2182: 1771: 2147: 2132: 2023: 512: 2212: 2202: 2077: 1786: 1387: 1101: 993: 978: 800: 790: 534:
Audemard M., Franck A. (1996b), "Paleoseismicity studies on the Oca-Ancón fault system, northwestern Venezuela",
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Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions
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Paris, Gabriel; Machette, Michael N.; Dart, Richard L.; Haller, Kathleen M. (2000).
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Map and Database of Quaternary Faults and Folds in Colombia and its Offshore Regions
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Paris, Gabriel; Machette, Michael N.; Dart, Richard L.; Haller, Kathleen M. (2000),
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Audemard M., Franck A.; Singer P., André; Soulas, Jean-Pierre (2006),
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Topographic map of northern Colombia showing the Oca Fault segment
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Enciclopedia de desastres naturales históricos de Colombia
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The fault system is of right-lateral 43: 527:10.22201/igeof.00167169p.1996.35.3.460 15: 7: 2431:Geography of La Guajira Department 51:Location of the fault in Venezuela 14: 2384: 2373: 2372: 625: 613: 601: 589: 135: 123: 42: 35: 1: 2330:Servicio Geológico Colombiano 550:10.1016/0040-1951(95)00144-1 405:Sierra Nevada de Santa Marta 196:Sierra Nevada de Santa Marta 2411:Seismic faults of Venezuela 2462: 2406:Seismic faults of Colombia 2325:Geological Map of Colombia 1289:Pampean Pegmatite Province 2446:Colombia–Venezuela border 2370: 1491: 761:Arequipa-Antofalla Craton 729: 229:830 km (520 mi) 59: 30: 23: 2441:Venezuelan Coastal Range 2344:Various authors (2014). 1247:Metallogenetic provinces 771:Central Brazilian Shield 370:located in northeastern 204:Venezuelan Coastal Range 2355:Universidad del Quindío 2024:Morronegro-Las Mercedes 1596:Bucaramanga-Santa Marta 882:Bucaramanga-Santa Marta 513:Geofísica Internacional 438:Paris et al., 2000, p.9 249:Vertical to subvertical 1512: 1505: 1498: 810:Structures undergoing 791:Río de la Plata Craton 736: 468:Audemard et al., 1996b 459:Audemard et al., 1996a 363: 356:Oca-Ancón Fault System 75:Northern South America 2342:      2320:      1511: 1504: 1497: 1444:Tectonism in Colombia 735: 407:and cuts through the 2295:      1485:South American Plate 835:Juan Fernández Ridge 796:São Francisco Craton 450:Audemard et al, 2006 392:South American Plate 2426:Geography of Falcón 1656:Servitá-Santa María 1355:Paraná and Etendeka 409:Serranía del Perijá 200:Serranía del Perijá 99: /  2436:Geography of Zulia 2416:Strike-slip faults 1943:Remolino-El Charco 1513: 1506: 1499: 1309:Volcanic provinces 1269:El Indio Gold Belt 1067:Sedimentary basins 932:Magallanes-Fagnano 781:Paranapanema Block 737: 366:) is a complex of 2393: 2392: 2282:Vichada Structure 2032: 2031: 1772:Bituima-La Salina 1651:San Pedro-Cumaral 1570:Río Negro-Juruena 1475:North Andes Plate 1410: 1409: 1406: 1405: 1259:Chilean Iron Belt 1254:Bolivian Tin Belt 1112:Eastern Venezuela 902:Dolores-Guayaquil 892:Cordillera Blanca 398:Oca Fault segment 374:and northwestern 368:geological faults 352: 351: 309:Strike-slip fault 103:11.000°N 71.750°W 2453: 2388: 2376: 2375: 2365: 2363: 2362: 2352: 2340: 2338: 2337: 2332:. pp. 1–212 2318: 2316: 2315: 2305: 2277:Bucaramanga Nest 1787:Chitagá-Pamplona 1760: 1581:Terrane-bounding 1565:Amazonian Craton 1561: 1437: 1430: 1423: 1414: 1350:Central Atlantic 1310: 1304: 1284:Lithium Triangle 1238: 1211: 1163: 1146: 1139: 1092: 1052: 1040: 1018: 939: 801:Uruguayan Shield 756:Amazonian Craton 662: 655: 648: 639: 630: 629: 628: 618: 617: 606: 605: 604: 594: 593: 592: 585: 576: 575: 574: 564: 552: 530: 529: 506: 505: 504: 488: 469: 466: 460: 457: 451: 448: 439: 436: 413:Late Pleistocene 331:Late Pleistocene 141: 139: 138: 129: 127: 126: 114: 113: 111: 110: 109: 104: 100: 97: 96: 95: 92: 64: 46: 45: 39: 16: 2461: 2460: 2456: 2455: 2454: 2452: 2451: 2450: 2396: 2395: 2394: 2389: 2366: 2360: 2358: 2357:. pp. 1–21 2350: 2343: 2335: 2333: 2321: 2313: 2311: 2310:. pp. 1–66 2303: 2296: 2286: 2265: 2261:Carajas-Imataca 2217: 2039: 2028: 1995: 1977: 1864: 1841: 1755: 1749: 1723:Córdoba-Navarco 1631:Garzón-Pitalito 1614:Eastern Frontal 1582: 1576: 1557: 1514: 1489: 1460:Caribbean Plate 1452:Tectonic plates 1446: 1441: 1411: 1402: 1378:Noronha hotspot 1359: 1308: 1293: 1279:Iron Quadrangle 1242: 1236: 1231:Terra Australis 1209: 1167: 1161: 1144: 1137: 1117:Golfo San Jorge 1090: 1085:Andean foreland 1061: 1050: 1038: 1016: 998: 994:Trans-Brazilian 937: 912:Eastern Frontal 854: 820:Antarctic Plate 805: 766:Atlantic Shield 738: 727: 675:Tectonic plates 669: 666: 636: 626: 624: 612: 602: 600: 590: 588: 580: 572: 570: 569:, pp. 1–66 562: 555: 533: 509: 502: 500: 486: 481: 478: 473: 472: 467: 463: 458: 454: 449: 442: 437: 430: 425: 400: 388:Caribbean Plate 364:Falla Oca-Ancón 187:Characteristics 165: 136: 134: 133: 124: 122: 108:11.000; -71.750 107: 105: 101: 98: 93: 90: 88: 86: 85: 67: 55: 54: 53: 52: 49: 48: 47: 25:Falla Oca-Ancón 19:Oca-Ancón Fault 12: 11: 5: 2459: 2457: 2449: 2448: 2443: 2438: 2433: 2428: 2423: 2418: 2413: 2408: 2398: 2397: 2391: 2390: 2371: 2368: 2367: 2294: 2292: 2288: 2287: 2285: 2284: 2279: 2273: 2271: 2267: 2266: 2264: 2263: 2258: 2256:Transamazonian 2253: 2248: 2246:Rondônia-Juruá 2243: 2238: 2233: 2227: 2225: 2219: 2218: 2216: 2215: 2210: 2205: 2200: 2195: 2190: 2185: 2180: 2175: 2170: 2165: 2160: 2155: 2150: 2145: 2140: 2135: 2130: 2125: 2120: 2115: 2110: 2105: 2100: 2095: 2090: 2085: 2080: 2075: 2070: 2065: 2060: 2055: 2050: 2044: 2042: 2034: 2033: 2030: 2029: 2027: 2026: 2021: 2016: 2011: 2005: 2003: 2001:Other terranes 1997: 1996: 1994: 1993: 1987: 1985: 1979: 1978: 1976: 1975: 1970: 1965: 1960: 1955: 1950: 1945: 1940: 1935: 1930: 1925: 1920: 1915: 1910: 1905: 1900: 1895: 1890: 1885: 1880: 1874: 1872: 1866: 1865: 1863: 1862: 1857: 1855:Espiritú Santo 1851: 1849: 1843: 1842: 1840: 1839: 1834: 1829: 1824: 1819: 1814: 1809: 1804: 1799: 1794: 1789: 1784: 1779: 1774: 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1091:Central Brazil 1087: 1082: 1077: 1071: 1069: 1063: 1062: 1060: 1059: 1054: 1047: 1042: 1035: 1030: 1025: 1020: 1012: 1010: 1000: 999: 997: 996: 991: 986: 981: 979:Sierra Ballena 976: 974:Sarandí del Yí 971: 966: 961: 956: 951: 946: 941: 934: 929: 924: 919: 914: 909: 904: 899: 894: 889: 884: 879: 874: 868: 866: 856: 855: 853: 852: 847: 842: 837: 832: 827: 825:Carnegie Ridge 822: 816: 814: 807: 806: 804: 803: 798: 793: 788: 786:Río Apa Craton 783: 778: 773: 768: 763: 758: 752: 750: 740: 739: 730: 728: 726: 725: 723:South American 720: 715: 710: 705: 700: 695: 690: 685: 679: 677: 671: 670: 667: 665: 664: 657: 650: 642: 635: 634: 622: 610: 608:Earth sciences 598: 578: 577: 553: 544:(1–3): 67–80, 537:Tectonophysics 531: 520:(3): 245–255, 507: 477: 474: 471: 470: 461: 452: 440: 427: 426: 424: 421: 399: 396: 350: 349: 344: 338: 337: 328: 322: 321: 318: 312: 311: 306: 300: 299: 294: 288: 287: 282: 278: 277: 275:South American 272: 266: 265: 261: 260: 257: 251: 250: 247: 241: 240: 237: 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1624: 1622: 1619: 1618: 1617: 1615: 1611: 1609: 1606: 1604: 1601: 1599: 1597: 1593: 1591: 1588: 1587: 1585: 1583:fault systems 1579: 1571: 1568: 1567: 1566: 1563: 1560: 1556: 1554: 1551: 1549: 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1526: 1525: 1523: 1521: 1517: 1510: 1503: 1496: 1486: 1483: 1481: 1478: 1476: 1473: 1471: 1470:Malpelo Plate 1468: 1466: 1463: 1461: 1458: 1457: 1455: 1453: 1449: 1445: 1438: 1433: 1431: 1426: 1424: 1419: 1418: 1415: 1399: 1396: 1394: 1391: 1389: 1386: 1384: 1381: 1379: 1376: 1374: 1371: 1370: 1368: 1366: 1362: 1356: 1353: 1351: 1348: 1346: 1343: 1339: 1336: 1334: 1331: 1329: 1326: 1324: 1321: 1320: 1319: 1316: 1315: 1313: 1311: 1305: 1302: 1300: 1296: 1290: 1287: 1285: 1282: 1280: 1277: 1275: 1272: 1270: 1267: 1265: 1262: 1260: 1257: 1255: 1252: 1251: 1249: 1245: 1239: 1234: 1232: 1229: 1227: 1224: 1222: 1219: 1217: 1214: 1212: 1207: 1205: 1202: 1200: 1197: 1195: 1192: 1190: 1189:Cariri Velhos 1187: 1185: 1182: 1180: 1177: 1176: 1174: 1170: 1164: 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Retrieved 2299: 2270:Other topics 2014:Dagua-Calima 1893:Bahía Solano 1754:Intraterrane 1704: 1688: 1687: 1612: 1594: 1480:Panama Plate 948: 571:, retrieved 558: 541: 535: 517: 511: 501:, retrieved 496: 490: 476:Bibliography 464: 455: 401: 355: 353: 255:Displacement 24: 2040:earthquakes 1898:Cañasgordas 1888:Bagre Norte 1812:La Macarena 1590:Bagre Norte 1465:Coiba Plate 1057:Salta Rifts 1023:Amazon Rift 864:shear zones 850:Nazca Ridge 845:Nazca Plate 713:North Andes 384:strike-slip 292:Earthquakes 106: / 81:Coordinates 2400:Categories 2361:2017-06-20 2336:2019-10-29 2314:2017-06-20 2236:Famatinian 1983:La Guajira 1948:Santa Rita 1938:Piedrancha 1933:Naya-Micay 1908:Garrapatas 1782:Caño Tomás 1728:Montenegro 1636:Guaicáramo 1621:Afiladores 1543:La Guajira 1221:San Rafael 1204:Gondwanide 1199:Famatinian 1184:Brasiliano 1122:Magallanes 954:Pernambuco 887:Cochabamba 830:Chile Rise 812:subduction 573:2017-06-20 503:2015-11-24 423:References 221:Oca, Ancón 163:La Guajira 2223:Orogenies 1953:El Tambor 1700:Palestina 1695:Otú Norte 1641:Guayuriba 1626:Algeciras 1603:Cimitarra 1393:San Felix 1383:Galápagos 1373:Ascension 1345:Caribbean 1299:Volcanism 1237:Tilcarian 1172:Orogenies 1075:Altiplano 1051:Paramirim 1033:Cuyo Rift 969:San Ramón 949:Oca-Ancón 688:Caribbean 683:Antarctic 632:Venezuela 378:near the 376:Venezuela 264:Tectonics 245:Dip angle 181:Maracaibo 153:Caribbean 143:Venezuela 2378:Category 2213:2016 (2) 2208:2016 (1) 2198:2013 (2) 2163:1995 (2) 2158:1995 (1) 2128:1979 (2) 2123:1979 (1) 2118:1970 (2) 2113:1970 (1) 2019:Guáitara 1928:Montería 1878:Abriaquí 1817:La Plata 1738:Piendamó 1661:Sibundoy 1520:Terranes 1398:Trindade 1365:Hotspots 1274:El Mutún 1162:Solimões 1138:Pantanal 1127:Malvinas 1102:Colorado 989:El Tigre 959:El Pilar 596:Colombia 390:and the 372:Colombia 335:Holocene 316:Movement 218:Segments 131:Colombia 72:Location 2291:Sources 2251:Tapajós 1913:Murindó 1883:Argelia 1860:Uramita 1807:Irlanda 1792:La Dina 1764:Chibcha 1733:Paraíso 1713:Armenia 1706:Romeral 1608:Cucuana 1559:Anacona 1528:Chibcha 1338:Austral 1328:Central 1216:Pampean 1194:Chonide 1145:Paraíba 1132:Neuquén 1017:Aguapeí 1008:grabens 964:Romeral 922:Huincul 907:Domeyko 897:Córdoba 872:Atacama 748:shields 744:Cratons 703:Malpelo 620:Geology 582:Portals 360:Spanish 342:Orogeny 320:Dextral 210:Part of 119:Country 94:71°45′W 91:11°00′N 2382:Images 2241:Sunsás 2231:Andean 1968:Unguía 1963:Tucurá 1923:Mutatá 1870:Caribe 1847:Tahamí 1822:Suárez 1802:Ibagué 1777:Bogotá 1756:faults 1676:Boconó 1548:Arquía 1538:Caribe 1533:Tahamí 1318:Andean 1226:Sunsás 1179:Andean 1151:Paraná 1080:Amazon 1039:Espino 984:Sobral 917:Gastre 877:Boconó 860:Faults 718:Scotia 347:Andean 285:Active 281:Status 235:Strike 226:Length 177:Cities 167:Falcón 149:Region 140:  128:  2351:(PDF) 2304:(PDF) 2038:Major 1991:Cuisa 1973:Urrao 1918:Murrí 1903:Cauca 1837:Vianí 1827:Tarra 1797:Honda 1708:(RFS) 1671:Yopal 1666:Suazá 1646:Mocoa 1616:(EFS) 1598:(BSF) 1333:South 1323:North 1210:Juruá 1156:Salta 1097:Chaco 1004:Rifts 944:Morón 708:Nazca 698:Coiba 693:Cocos 563:(PDF) 487:(PDF) 270:Plate 192:Range 171:Zulia 159:State 2308:USGS 2203:2015 2193:2012 2188:2008 2183:2007 2178:2004 2173:1999 2168:1996 2153:1994 2148:1992 2143:1991 2138:1987 2133:1983 2108:1967 2103:1962 2098:1958 2093:1936 2088:1917 2083:1906 2078:1875 2073:1868 2068:1834 2063:1827 2058:1785 2053:1743 2048:1646 2009:Meta 1958:Toro 1832:Usme 1107:Cuyo 1006:and 938:Meta 862:and 746:and 567:USGS 417:1834 354:The 304:Type 297:1834 1689:Oca 546:doi 542:259 522:doi 326:Age 2402:: 2380:• 2353:. 2328:. 2306:. 565:, 540:, 518:35 516:, 497:61 495:, 489:, 443:^ 431:^ 419:. 362:: 202:, 198:, 169:, 2364:. 2339:. 2317:. 1436:e 1429:t 1422:v 661:e 654:t 647:v 584:: 548:: 524:: 358:( 333:-

Index

Map showing the location of Oca-Ancón Fault

Coordinates
11°00′N 71°45′W / 11.000°N 71.750°W / 11.000; -71.750
Colombia
Venezuela
Caribbean
La Guajira
Falcón
Zulia
Maracaibo
Sierra Nevada de Santa Marta
Serranía del Perijá
Venezuelan Coastal Range
Strike
Dip angle
Displacement
Plate
South American
Active
Earthquakes
1834
Type
Strike-slip fault
Movement
Age
Late Pleistocene
Holocene
Orogeny
Andean

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