Knowledge

1946 Aleutian Islands earthquake

Source 📝

680: 47: 3086: 477: 3038: 652: 666: 194: 29: 124: 110: 82: 54: 166: 138: 152: 68: 180: 96: 614:
4.9 hours later. In the Hawaiian Islands 159 people died. In Hilo alone, 96 people died, 163 were injured, 488 buildings were demolished and 936 more were damaged. On Kauai the McKee sugar mill and buildings were demolished, and the archives of the Kauai newspaper were a loss. Witnesses told of waves
575:
as the surface-wave magnitude was very low compared to the moment and tsunami magnitudes, and the tsunami height was far larger than expected for the surface wave magnitude. The very high tsunami magnitude value is due to the sheer strength of the waves. It was calculated by using tsunami run up from
635:
The tsunami was unusually powerful for the size of the earthquake. The event was classified as a tsunami earthquake due to the discrepancy between the size of the tsunami and the relatively low surface-wave magnitude. The large-scale destruction prompted the creation of the Seismic Sea Wave Warning
619:
as well. Waves there demolished 77 homes and many other buildings. The residents of these islands were caught off-guard by the onset of the tsunami due to the inability to transmit warnings from the destroyed posts at Scotch Cap, and the tsunami is known as the April Fools' Day Tsunami in Hawaii
605:
At Unimak Island, tsunami run-up reached 42 m (138 ft). The tsunami earthquake aspect of this event helps to explain a portion of this massive height; however, the rest must be attributed to a local submarine landslide. Waves reportedly traveled across the ocean at 500 miles per hour
552:
The earthquake struck at 02:29 local time on April 1, 1946, at a shallow depth of 15 km (9.3 mi). The earthquake was very large, but the maximum felt intensity was only a VI. The earthquake was originally thought to be a rather smaller earthquake of
596:
helped to uncover both the true magnitude of the earthquake, as well as the widely accepted thrusting mechanism. This thrust mechanism is consistent with a subduction earthquake helping to relieve stress on the Aleutian Trench.
1279: 584: ), the tsunami magnitude is at least 9.1. The earthquake was originally thought to be a strike-slip earthquake, and later a strike slip earthquake with a normal faulting component. These erroneous 468:, Alaska among others, and killed all five lighthouse keepers. Despite the destruction to the Aleutian Island Unimak, the tsunami had almost an imperceptible effect on the Alaskan mainland. 1310: 2538: 2229: 985:"Rupture Along 400 km of the Bering Fracture Zone in the Komandorsky Islands Earthquake ( M W 7.8) of 17 July 2017: 2017 Mw 7.8 Komandorsky Is. Earthquake" 983:
Lay, Thorne; Ye, Lingling; Bai, Yefei; Cheung, Kwok Fai; Kanamori, Hiroo; Freymueller, Jeffrey; Steblov, Grigory M.; Kogan, Mikhail G. (December 8, 2017).
736: 1447: 1253: 571:
8.6 fits this event best, with an estimated slip between 9 m (30 ft) and 12.7 m (42 ft). This event shows the classic signs of a
3260: 3174: 3018: 2055: 1420: 2222: 456:). It resulted in 165–173 casualties and over US $ 26 million in damage. The seafloor along the fault was elevated, triggering a Pacific-wide 2980: 3245: 1385: 1729: 1411: 769: 46: 954: 2558: 2111: 3250: 2215: 894: 615:
inundating streets, homes, and storefronts. Many victims were swept out to sea by receding water. The tsunami caused much damage in
313: 2238: 703: 2000: 540:
becomes the dominant fault of the tectonic regime. This specific area of the Aleutian Islands is thought to have ruptured in the
1656: 562:
7.4, however further research uncovered that this was truly a much larger event, but with a hidden seismic signature. A size of
3255: 2367: 1440: 932: 1863: 1851: 2899: 2508: 2282: 1775: 1723: 378: 3169: 3011: 2683: 2287: 2048: 528:
begins in the west. In the east, the trench extends for a couple thousand miles before reaching the transition zone near
521: 2919: 2668: 2523: 1948: 1790: 217: 2543: 2312: 2099: 2006: 1433: 1341: 2864: 2678: 2588: 2423: 2408: 2252: 2153: 2087: 2075: 1784: 1622: 728: 541: 460:
with multiple destructive waves at heights ranging from 45–138 ft (14–42 m). The tsunami obliterated the
231: 1543: 1417: 1072: 492:
The Aleutian Islands are a group of 14 large and 55 smaller volcanic islands situated between mainland Alaska and
2970: 2829: 2708: 2673: 2633: 2428: 1714: 1683: 1650: 1537: 765: 3004: 2909: 2884: 2794: 2733: 2503: 2473: 2342: 2171: 2041: 1500: 1380: 732: 637: 2189: 236: 3192: 2975: 2914: 2854: 2548: 2483: 2453: 2443: 2403: 2362: 2257: 2147: 2064: 698: 1552: 3265: 3199: 3187: 2728: 2698: 2613: 2603: 2568: 2413: 2347: 2337: 2183: 2129: 2081: 1665: 1558: 1391: 533: 1249: 2985: 2904: 2809: 2753: 2703: 2688: 2663: 2643: 2628: 2598: 2583: 2578: 2563: 2533: 2438: 2382: 2377: 2332: 2297: 2165: 2135: 2123: 1959: 1906: 1898: 1843: 1752: 1697: 1636: 1578: 1519: 1511: 1462: 693: 580:, Hilo, and the average of stations in California. Even excluding the values given by Hilo (the highest M 1991: 1738: 3270: 3204: 2944: 2874: 2799: 2789: 2758: 2748: 2738: 2723: 2653: 2608: 2493: 2478: 2372: 2352: 2327: 2302: 2277: 2262: 1595: 1371: 206: 606:(430 kn; 800 km/h) and measured 55 feet (17 m) high, crest to trough. The wave reached 563: 554: 440: 431: 422: 288: 279: 270: 3225: 3147: 2894: 2869: 2774: 2518: 2498: 2463: 2398: 2177: 2159: 1857: 1604: 1470: 517: 3100: 2934: 2879: 2859: 2849: 2844: 2839: 2804: 2743: 2718: 2648: 2593: 2433: 2272: 2267: 1939: 1875: 1799: 1705: 1485: 449: 3240: 3235: 3230: 3132: 2929: 2834: 2784: 2713: 2528: 2448: 2322: 2307: 2292: 2195: 1967: 1820: 1805: 1674: 1586: 1564: 1491: 348: 3179: 3164: 3137: 3075: 2960: 2924: 2889: 2824: 2779: 2693: 2658: 2638: 2623: 2618: 2573: 2553: 2488: 2468: 2458: 2357: 2317: 2141: 2117: 2105: 1982: 1915: 1884: 1829: 1811: 1760: 1644: 1528: 525: 759: 2965: 2939: 2819: 2814: 2418: 1973: 1933: 1924: 1869: 1407: 958: 685: 537: 529: 223: 3159: 3060: 3050: 1613: 1476: 1294: 1213: 1161: 1107: 1040: 858: 814: 509: 8: 3125: 3070: 902: 1298: 1217: 1165: 1111: 1044: 862: 818: 3115: 3065: 1231: 1179: 1123: 1064: 1056: 1006: 621: 572: 803:"A seismological reassessment of the source of the 1946 Aleutian 'tsunami' earthquake" 3027: 1306: 1235: 1183: 1068: 827: 802: 513: 1127: 1096:"Paleotsunami evidence on Kaua'i and numerical modeling of a great Aleutian tsunami" 1010: 924: 2207: 1302: 1221: 1169: 1115: 1048: 996: 866: 822: 461: 414: 1052: 588:
were due to a lack of stations recording the earthquake. However, modeling of the
3105: 3055: 585: 512:. The western portion of the trench becomes more and more oblique until near the 505: 497: 3120: 1275: 1226: 1201: 1376: 1365: 3219: 671: 657: 501: 465: 328: 315: 870: 3152: 3142: 1425: 846: 611: 34: 1396: 1335: 1174: 1150:"Aftershock Regions of Aleutian-Alaska Megathrust Earthquakes, 1938–2021" 1149: 1119: 1001: 984: 2033: 620:
because it happened on April 1. The effects of the tsunami also reached
1095: 1060: 1028: 629: 485: 3110: 493: 481: 476: 2996: 847:"Size of great earthquakes of 1837–1974 inferred from tsunami data" 577: 457: 1337:
The April 1, 1946 Earthquake and Tsunami in the Aleutian Islands
1094:
Butler, Rhett; Burney, David; Walsh, David (September 1, 2014).
1029:"Yakataga gap, Alaska: Seismic history and earthquake potential" 28: 1200:
Fisher, Scott; Goff, James; Cundy, Andrew; Sear, David (2023).
625: 593: 589: 418: 362: 358: 536:. The collision totally ends slightly further east, where the 607: 727: 500:
as they were formed by the active subduction of the oceanic
616: 1403: 1377:
Tsunami Animation: Unimak Island, Aleutian Islands, 1946
193: 2021:
indicates earthquake resulting in at least 30 deaths
2237: 647: 1199: 1093: 532:responsible for creating earthquakes such as the 3217: 3175:Alaska National Interest Lands Conservation Act 2026:indicates the deadliest earthquake of the year 982: 395:Up to 42 m (138 ft) at Unimak Island 3012: 2223: 2049: 1441: 1268: 1202:"A qualitative review of tsunamis in HawaiÊ»i" 947: 1455: 1287:Physics of the Earth and Planetary Interiors 1154:Journal of Geophysical Research: Solid Earth 1148:Tape, Carl; Lomax, Anthony (June 18, 2022). 801:Okal, Emile; LĂłpez, Alberto M. (June 2006). 18:Earthquake near the Aleutian Islands, Alaska 3019: 3005: 2230: 2216: 2056: 2042: 1448: 1434: 1087: 796: 794: 792: 790: 788: 786: 516:where faulting becomes nearly exclusively 432: 289: 33:People fleeing the approaching tsunami in 27: 2063: 1225: 1195: 1193: 1173: 1147: 1000: 978: 976: 840: 838: 826: 800: 733:"Comments for the Significant Earthquake" 564: 555: 441: 423: 280: 271: 1274: 1141: 751: 704:List of earthquakes in the United States 475: 1388:– Western States Seismic Policy Council 1256:from the original on September 29, 2018 1022: 1020: 935:from the original on September 12, 2019 917: 783: 3261:April 1946 events in the United States 3218: 1392:Mystery of Deadly 1946 Tsunami Deepens 1190: 1026: 973: 835: 723: 721: 719: 421:on April 1, 1946. The shock measured ( 3026: 3000: 2211: 2037: 1429: 1344:from the original on January 19, 2019 1503:(5.3 & 5.6, Dec 20 & Dec 24) 1017: 889: 887: 757: 3246:Earthquakes in the Aleutian Islands 3170:Alaska Native Claims Settlement Act 844: 739:from the original on August 7, 2022 716: 522:2017 Komandorski Islands earthquake 520:and causes earthquakes such as the 471: 123: 109: 13: 1404:International Seismological Centre 1280:"Mechanism of tsunami earthquakes" 772:from the original on July 17, 2020 636:System, which became known as the 14: 3282: 1359: 1250:"A History of Tsunamis in Hawaii" 1075:from the original on July 3, 2022 884: 807:Geophysical Journal International 81: 53: 3251:Megathrust earthquakes in Alaska 3084: 3061:Department of Alaska (1867–1884) 3036: 2239:Earthquakes in the United States 828:10.1111/j.1365-246X.2006.02899.x 729:National Geophysical Data Center 678: 664: 650: 542:1585 Aleutian Islands earthquake 411:1946 Aleutian Islands earthquake 192: 178: 165: 164: 150: 137: 136: 122: 108: 94: 80: 66: 52: 45: 22:1946 Aleutian Islands earthquake 3071:Territory of Alaska (1912–1959) 1653:(7.2 & 7.5, June 8 & 9) 1328: 1242: 851:Journal of Geophysical Research 766:United States Geological Survey 610:4.5 hours after the quake, and 371: 3066:District of Alaska (1884–1912) 1381:Pacific Tsunami Warning Center 638:Pacific Tsunami Warning Center 496:. They are situated along the 151: 67: 1: 3256:Tsunamis in the United States 3076:Recent history (1959–present) 1340:, George Pararas-Carayannis, 1053:10.1126/science.207.4437.1309 709: 699:List of earthquakes in Alaska 547: 1307:10.1016/0031-9201(72)90058-1 1100:Geophysical Research Letters 989:Geophysical Research Letters 761:PAGER-CAT Earthquake Catalog 534:1899 Yakutat Bay earthquakes 524:. The trench ends where the 179: 95: 7: 3056:Russian America (1733–1867) 694:List of earthquakes in 1946 643: 504:underneath the continental 10: 3287: 1227:10.1007/s11069-023-06076-w 758:USGS (September 4, 2009), 600: 3148:Aleutian Islands campaign 3093: 3082: 3043: 3034: 2953: 2900:2018 Southern Appalachian 2767: 2391: 2245: 2071: 2016: 1958: 1897: 1842: 1751: 1696: 1635: 1577: 1510: 1461: 399: 391: 370: 354: 344: 307: 299: 265: 257: 242: 229: 216: 205: 41: 26: 3101:Russian-American Company 2288:1812 San Juan Capistrano 1456:Earthquakes in the 1940s 1418:Survivor audio interview 1027:McCann, William (1980). 448:) 7.4. It had a maximum 303:15 km (9.3 mi) 3133:Alaska boundary dispute 2920:2020 Monte Cristo Range 2669:1986 North Palm Springs 2524:1948 Desert Hot Springs 2001:Queen Charlotte Islands 1730:Gulf of Edremit–Ayvacik 895:"1946 Aleutian Tsunami" 871:10.1029/JB084iB04p01561 845:Abe, Katsuyuki (1979). 3138:1925 serum run to Nome 2971:2010–11 Guy-Greenbrier 2544:1957 Andreanof Islands 2368:1892 Vacaville–Winters 2313:1867 Manhattan, Kansas 2100:1957 Andreanof Islands 1596:Wairarapa, New Zealand 1386:1946 Aleutians Tsunami 526:Kuril-Kamchatka Trench 489: 2981:2009–present Oklahoma 2870:2014 Southeast Alaska 2865:2014 Aleutian Islands 2679:1987 Whittier Narrows 2589:1968 Borrego Mountain 2539:1954 Churchill County 2514:1946 Aleutian Islands 2509:1944 Cornwall–Massena 2409:1906 Aleutian Islands 2253:1585 Aleutian Islands 2154:2014 Aleutian Islands 2094:1946 Aleutian Islands 2088:1906 Aleutian Islands 2076:1585 Aleutian Islands 2065:Earthquakes in Alaska 764:, Version 2008_06.1, 686:Earth sciences portal 538:Queen Charlotte Fault 479: 462:Scotch Cap Lighthouse 3200:History of Fairbanks 3188:History of Anchorage 3160:Alaska Statehood Act 2830:2010 Baja California 2684:1987 Imperial Valley 2674:1986 Chalfant Valley 2634:1979 Imperial Valley 2429:1915 Pleasant Valley 2424:1915 Imperial Valley 1623:Niksar–Erbaa, Turkey 1316:on February 22, 2016 1175:10.1029/2022JB024336 1120:10.1002/2014GL061232 1002:10.1002/2017GL076148 961:on February 25, 2014 510:North American Plate 3266:Tsunami earthquakes 2910:2020 Salt Lake City 2855:2013 Port Alexander 2795:2006 Gulf of Mexico 2709:1992 Cape Mendocino 2474:1932 Cedar Mountain 2343:1872 North Cascades 1708:(6.7–.7.8, Jan 15) 1367:Tsunami 1946 – Hilo 1299:1972PEPI....6..346K 1218:2023NatHa.118.1797F 1166:2022JGRB..12724336T 1112:2014GeoRL..41.6795B 1045:1980Sci...207.1309M 1039:(4437): 1309–1314. 905:on January 12, 2016 863:1979JGR....84.1561A 819:2006GeoJI.165..835L 325: /  212:1946-04-01 12:29:01 23: 3044:Timeline of Alaska 2915:2020 Central Idaho 2734:1993 Klamath Falls 2549:1957 San Francisco 2504:1940 New Hampshire 2484:1934 Hansel Valley 2454:1925 Santa Barbara 2444:1921 Sevier Valley 2404:1906 San Francisco 2363:1892 Laguna Salada 2293:1812 Santa Barbara 2283:1811–12 New Madrid 2258:1638 New Hampshire 1949:Desert Hot Springs 1802:(8.0, 7.8, Sep 12) 1791:Dominican Republic 1647:(7.9–8.3, April 6) 1540:(7.7–8.1, June 26) 1412:authoritative data 1252:. March 11, 2011. 925:"Aleutian Islands" 592:, rather than the 573:tsunami earthquake 490: 450:Mercalli intensity 413:occurred near the 21: 3271:History of Hawaii 3213: 3212: 3094:Topics and events 3028:History of Alaska 2994: 2993: 2729:1993 Scotts Mills 2699:1991 Sierra Madre 2614:1975 Near Islands 2604:1971 San Fernando 2569:1962 Cache Valley 2414:1909 Wabash River 2348:1882 Fort Collins 2338:1872 Owens Valley 2205: 2204: 2130:1975 Near Islands 2031: 2030: 1763:(6.1, January 25) 1106:(19): 6795–6802. 955:"Aleutian Trench" 857:(B4): 1561–1568. 514:Commander Islands 407: 406: 3278: 3226:1946 earthquakes 3088: 3087: 3040: 3039: 3021: 3014: 3007: 2998: 2997: 2810:2008 Chino Hills 2754:1999 Hector Mine 2704:1992 Joshua Tree 2689:1989 Loma Prieta 2664:1984 Morgan Hill 2644:1981 Westmorland 2629:1979 Coyote Lake 2584:1965 Puget Sound 2579:1965 Rat Islands 2564:1959 Hebgen Lake 2534:1952 Kern County 2439:1918 San Jacinto 2383:1899 San Jacinto 2378:1898 Mare Island 2298:1838 San Andreas 2232: 2225: 2218: 2209: 2208: 2166:2016 Old Iliamna 2136:1979 Saint Elias 2124:1965 Rat Islands 2082:1899 Yakutat Bay 2058: 2051: 2044: 2035: 2034: 2007:Tierra del Fuego 1785:Vancouver Island 1767:Aleutian Islands 1724:Cornwall–Massena 1677:(7.0, Sept 10) 1657:Adapazarı–Hendek 1450: 1443: 1436: 1427: 1426: 1368: 1353: 1352: 1351: 1349: 1332: 1326: 1325: 1323: 1321: 1315: 1309:. Archived from 1284: 1272: 1266: 1265: 1263: 1261: 1246: 1240: 1239: 1229: 1212:(3): 1797–1832. 1197: 1188: 1187: 1177: 1145: 1139: 1138: 1136: 1134: 1091: 1085: 1084: 1082: 1080: 1024: 1015: 1014: 1004: 980: 971: 970: 968: 966: 957:. Archived from 951: 945: 944: 942: 940: 921: 915: 914: 912: 910: 901:. Archived from 891: 882: 881: 879: 877: 842: 833: 832: 830: 798: 781: 780: 779: 777: 755: 749: 748: 746: 744: 725: 688: 683: 682: 681: 674: 669: 668: 667: 660: 655: 654: 653: 586:focal mechanisms 569: 560: 480:Map showing the 472:Tectonic setting 446: 437: 428: 415:Aleutian Islands 387: 385: 373: 340: 339: 337: 336: 335: 330: 329:53.49°N 162.83°W 326: 323: 322: 321: 318: 294: 285: 276: 253: 251: 196: 195: 182: 181: 168: 167: 154: 153: 140: 139: 126: 125: 112: 111: 98: 97: 84: 83: 70: 69: 56: 55: 49: 31: 24: 20: 3286: 3285: 3281: 3280: 3279: 3277: 3276: 3275: 3216: 3215: 3214: 3209: 3165:1964 earthquake 3106:Alaska Purchase 3089: 3085: 3080: 3041: 3037: 3030: 3025: 2995: 2990: 2986:2019 Ridgecrest 2949: 2945:2024 New Jersey 2905:2019 Ridgecrest 2875:2014 South Napa 2800:2006 Kiholo Bay 2790:2003 San Simeon 2763: 2759:2000 Yountville 2749:1998 Pymatuning 2739:1994 Northridge 2724:1992 St. George 2654:1983 Borah Peak 2609:1973 Point Mugu 2599:1969 Santa Rosa 2559:1958 Lituya Bay 2494:1936 State Line 2479:1933 Long Beach 2387: 2373:1895 Charleston 2353:1886 Charleston 2328:1870 Charlevoix 2303:1857 Fort Tejon 2278:1783 New Jersey 2263:1663 Charlevoix 2241: 2236: 2206: 2201: 2112:1958 Lituya Bay 2067: 2062: 2032: 2027: 2022: 2012: 1976:(7.4, July 10) 1970:(6.7, April 13) 1954: 1927:(6.8, June 28) 1893: 1838: 1769:(8.6, April 1) 1747: 1692: 1668:(7.0, July 23) 1659:(6.6, June 20) 1631: 1598:(7.2, June 24) 1573: 1546:(5.9, Sept 10) 1538:Andaman Islands 1506: 1457: 1454: 1414:for this event. 1366: 1362: 1357: 1356: 1347: 1345: 1334: 1333: 1329: 1319: 1317: 1313: 1282: 1273: 1269: 1259: 1257: 1248: 1247: 1243: 1206:Natural Hazards 1198: 1191: 1146: 1142: 1132: 1130: 1092: 1088: 1078: 1076: 1025: 1018: 981: 974: 964: 962: 953: 952: 948: 938: 936: 923: 922: 918: 908: 906: 893: 892: 885: 875: 873: 843: 836: 799: 784: 775: 773: 756: 752: 742: 740: 726: 717: 712: 684: 679: 677: 670: 665: 663: 656: 651: 649: 646: 603: 583: 568: 559: 550: 498:Aleutian Trench 474: 445: 436: 427: 379: 377: 365: 333: 331: 327: 324: 319: 316: 314: 312: 311: 293: 284: 275: 258:Local time 249: 247: 243:Local date 201: 200: 199: 198: 197: 189: 188: 187: 183: 175: 174: 173: 169: 161: 160: 159: 155: 147: 146: 145: 141: 133: 132: 131: 127: 119: 118: 117: 113: 105: 104: 103: 99: 91: 90: 89: 85: 77: 76: 75: 71: 63: 62: 61: 57: 37: 19: 12: 11: 5: 3284: 3274: 3273: 3268: 3263: 3258: 3253: 3248: 3243: 3241:1940s tsunamis 3238: 3236:1946 in Hawaii 3233: 3231:1946 in Alaska 3228: 3211: 3210: 3208: 3207: 3202: 3197: 3196: 3195: 3185: 3177: 3172: 3167: 3162: 3157: 3156: 3155: 3150: 3140: 3135: 3130: 3129: 3128: 3123: 3118: 3108: 3103: 3097: 3095: 3091: 3090: 3083: 3081: 3079: 3078: 3073: 3068: 3063: 3058: 3053: 3047: 3045: 3042: 3035: 3032: 3031: 3024: 3023: 3016: 3009: 3001: 2992: 2991: 2989: 2988: 2983: 2978: 2973: 2968: 2963: 2957: 2955: 2951: 2950: 2948: 2947: 2942: 2937: 2932: 2927: 2922: 2917: 2912: 2907: 2902: 2897: 2895:2018 Anchorage 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2822: 2817: 2812: 2807: 2802: 2797: 2792: 2787: 2782: 2777: 2775:2001 Nisqually 2771: 2769: 2765: 2764: 2762: 2761: 2756: 2751: 2746: 2741: 2736: 2731: 2726: 2721: 2716: 2711: 2706: 2701: 2696: 2691: 2686: 2681: 2676: 2671: 2666: 2661: 2656: 2651: 2646: 2641: 2636: 2631: 2626: 2621: 2616: 2611: 2606: 2601: 2596: 2591: 2586: 2581: 2576: 2571: 2566: 2561: 2556: 2551: 2546: 2541: 2536: 2531: 2526: 2521: 2519:1947 Wisconsin 2516: 2511: 2506: 2501: 2499:1940 El Centro 2496: 2491: 2486: 2481: 2476: 2471: 2466: 2464:1931 Valentine 2461: 2456: 2451: 2446: 2441: 2436: 2431: 2426: 2421: 2416: 2411: 2406: 2401: 2399:1901 Richfield 2395: 2393: 2389: 2388: 2386: 2385: 2380: 2375: 2370: 2365: 2360: 2355: 2350: 2345: 2340: 2335: 2330: 2325: 2320: 2315: 2310: 2305: 2300: 2295: 2290: 2285: 2280: 2275: 2270: 2265: 2260: 2255: 2249: 2247: 2243: 2242: 2235: 2234: 2227: 2220: 2212: 2203: 2202: 2200: 2199: 2193: 2187: 2181: 2178:2018 Anchorage 2175: 2169: 2163: 2160:2014 Palma Bay 2157: 2151: 2145: 2139: 2133: 2127: 2121: 2115: 2109: 2103: 2097: 2091: 2085: 2079: 2072: 2069: 2068: 2061: 2060: 2053: 2046: 2038: 2029: 2028: 2017: 2014: 2013: 2011: 2010: 2004: 1998: 1994:(6.7, Aug 17) 1989: 1980: 1971: 1964: 1962: 1956: 1955: 1953: 1952: 1946: 1937: 1931: 1922: 1918:(7.2, May 25) 1913: 1909:(8.2, Jan 25) 1903: 1901: 1895: 1894: 1892: 1891: 1882: 1878:(6.9, Sep 23) 1873: 1867: 1861: 1855: 1848: 1846: 1840: 1839: 1837: 1836: 1832:(8.1, Dec 21) 1827: 1818: 1814:(6.8, Nov 10) 1809: 1803: 1797: 1788: 1787:(7.3, June 23) 1782: 1778:(5.9, May 31) 1773: 1764: 1757: 1755: 1749: 1748: 1746: 1745: 1736: 1727: 1721: 1712: 1702: 1700: 1694: 1693: 1691: 1690: 1686:(7.5, Nov 26) 1681: 1672: 1663: 1654: 1651:Alahan Panjang 1648: 1641: 1639: 1633: 1632: 1630: 1629: 1625:(7.0, Dec 20) 1620: 1616:(8.2, Aug 24) 1611: 1602: 1593: 1589:(7.9, May 14) 1583: 1581: 1575: 1574: 1572: 1571: 1567:(7.1, Dec 17) 1562: 1556: 1550: 1541: 1535: 1531:(7.7, Apr 15) 1526: 1522:(5.8, Jan 11) 1516: 1514: 1508: 1507: 1505: 1504: 1498: 1494:(7.7, Nov 10) 1489: 1483: 1474: 1467: 1465: 1459: 1458: 1453: 1452: 1445: 1438: 1430: 1424: 1423: 1415: 1400: 1389: 1383: 1374: 1361: 1360:External links 1358: 1355: 1354: 1327: 1293:(5): 346–359. 1267: 1241: 1189: 1140: 1086: 1016: 972: 946: 916: 883: 834: 813:(3): 835–849. 782: 750: 714: 713: 711: 708: 707: 706: 701: 696: 690: 689: 675: 661: 645: 642: 602: 599: 581: 566: 557: 549: 546: 473: 470: 443: 434: 425: 405: 404: 401: 397: 396: 393: 389: 388: 375: 368: 367: 356: 355:Areas affected 352: 351: 346: 342: 341: 334:53.49; -162.83 309: 305: 304: 301: 297: 296: 291: 282: 273: 267: 263: 262: 259: 255: 254: 244: 240: 239: 234: 227: 226: 221: 214: 213: 210: 203: 202: 191: 190: 185: 184: 177: 176: 171: 170: 163: 162: 157: 156: 149: 148: 143: 142: 135: 134: 129: 128: 121: 120: 115: 114: 107: 106: 101: 100: 93: 92: 87: 86: 79: 78: 73: 72: 65: 64: 59: 58: 51: 50: 44: 43: 42: 39: 38: 32: 17: 9: 6: 4: 3: 2: 3283: 3272: 3269: 3267: 3264: 3262: 3259: 3257: 3254: 3252: 3249: 3247: 3244: 3242: 3239: 3237: 3234: 3232: 3229: 3227: 3224: 3223: 3221: 3206: 3203: 3201: 3198: 3194: 3191: 3190: 3189: 3186: 3184: 3182: 3178: 3176: 3173: 3171: 3168: 3166: 3163: 3161: 3158: 3154: 3151: 3149: 3146: 3145: 3144: 3141: 3139: 3136: 3134: 3131: 3127: 3124: 3122: 3119: 3117: 3114: 3113: 3112: 3111:Gold Rush era 3109: 3107: 3104: 3102: 3099: 3098: 3096: 3092: 3077: 3074: 3072: 3069: 3067: 3064: 3062: 3059: 3057: 3054: 3052: 3049: 3048: 3046: 3033: 3029: 3022: 3017: 3015: 3010: 3008: 3003: 3002: 2999: 2987: 2984: 2982: 2979: 2977: 2974: 2972: 2969: 2967: 2964: 2962: 2959: 2958: 2956: 2952: 2946: 2943: 2941: 2938: 2936: 2935:2022 Ferndale 2933: 2931: 2928: 2926: 2923: 2921: 2918: 2916: 2913: 2911: 2908: 2906: 2903: 2901: 2898: 2896: 2893: 2891: 2888: 2886: 2883: 2881: 2880:2016 Oklahoma 2878: 2876: 2873: 2871: 2868: 2866: 2863: 2861: 2860:2014 La Habra 2858: 2856: 2853: 2851: 2850:2011 Oklahoma 2848: 2846: 2845:2011 Virginia 2843: 2841: 2840:2011 Colorado 2838: 2836: 2833: 2831: 2828: 2826: 2823: 2821: 2818: 2816: 2813: 2811: 2808: 2806: 2805:2008 Illinois 2803: 2801: 2798: 2796: 2793: 2791: 2788: 2786: 2783: 2781: 2778: 2776: 2773: 2772: 2770: 2766: 2760: 2757: 2755: 2752: 2750: 2747: 2745: 2744:1995 Marathon 2742: 2740: 2737: 2735: 2732: 2730: 2727: 2725: 2722: 2720: 2719:1992 Big Bear 2717: 2715: 2712: 2710: 2707: 2705: 2702: 2700: 2697: 2695: 2692: 2690: 2687: 2685: 2682: 2680: 2677: 2675: 2672: 2670: 2667: 2665: 2662: 2660: 2657: 2655: 2652: 2650: 2649:1983 Coalinga 2647: 2645: 2642: 2640: 2637: 2635: 2632: 2630: 2627: 2625: 2622: 2620: 2617: 2615: 2612: 2610: 2607: 2605: 2602: 2600: 2597: 2595: 2594:1968 Illinois 2592: 2590: 2587: 2585: 2582: 2580: 2577: 2575: 2572: 2570: 2567: 2565: 2562: 2560: 2557: 2555: 2552: 2550: 2547: 2545: 2542: 2540: 2537: 2535: 2532: 2530: 2527: 2525: 2522: 2520: 2517: 2515: 2512: 2510: 2507: 2505: 2502: 2500: 2497: 2495: 2492: 2490: 2487: 2485: 2482: 2480: 2477: 2475: 2472: 2470: 2467: 2465: 2462: 2460: 2457: 2455: 2452: 2450: 2447: 2445: 2442: 2440: 2437: 2435: 2434:1916 Irondale 2432: 2430: 2427: 2425: 2422: 2420: 2417: 2415: 2412: 2410: 2407: 2405: 2402: 2400: 2397: 2396: 2394: 2390: 2384: 2381: 2379: 2376: 2374: 2371: 2369: 2366: 2364: 2361: 2359: 2356: 2354: 2351: 2349: 2346: 2344: 2341: 2339: 2336: 2334: 2331: 2329: 2326: 2324: 2321: 2319: 2316: 2314: 2311: 2309: 2306: 2304: 2301: 2299: 2296: 2294: 2291: 2289: 2286: 2284: 2281: 2279: 2276: 2274: 2273:1755 Cape Ann 2271: 2269: 2268:1700 Cascadia 2266: 2264: 2261: 2259: 2256: 2254: 2251: 2250: 2248: 2244: 2240: 2233: 2228: 2226: 2221: 2219: 2214: 2213: 2210: 2197: 2194: 2191: 2190:2020 Shumagin 2188: 2185: 2184:2020 Shumagin 2182: 2179: 2176: 2173: 2170: 2167: 2164: 2161: 2158: 2155: 2152: 2149: 2146: 2143: 2140: 2137: 2134: 2131: 2128: 2125: 2122: 2119: 2116: 2113: 2110: 2107: 2104: 2101: 2098: 2095: 2092: 2089: 2086: 2083: 2080: 2077: 2074: 2073: 2070: 2066: 2059: 2054: 2052: 2047: 2045: 2040: 2039: 2036: 2025: 2020: 2015: 2009:(7.8, Dec 17) 2008: 2005: 2003:(8.1, Aug 22) 2002: 1999: 1997: 1993: 1990: 1988: 1985:(6.8, Aug 5) 1984: 1981: 1979: 1975: 1972: 1969: 1966: 1965: 1963: 1961: 1957: 1950: 1947: 1945: 1942:(7.3, Oct 5) 1941: 1938: 1936:(7.0, Aug 25) 1935: 1932: 1930: 1926: 1923: 1921: 1917: 1914: 1912: 1908: 1905: 1904: 1902: 1900: 1896: 1890: 1887:(7.7, Nov 1) 1886: 1883: 1881: 1877: 1874: 1872:(7.3, Jul 29) 1871: 1868: 1866:(7.1, May 17) 1865: 1862: 1859: 1856: 1854:(7.1, Mar 26) 1853: 1850: 1849: 1847: 1845: 1841: 1835: 1831: 1828: 1826: 1823:(6.1, Dec 5) 1822: 1819: 1817: 1813: 1810: 1807: 1804: 1801: 1798: 1796: 1793:(8.1, Aug 4) 1792: 1789: 1786: 1783: 1781: 1777: 1774: 1772: 1768: 1765: 1762: 1759: 1758: 1756: 1754: 1750: 1744: 1741:(8.1, Dec 5) 1740: 1737: 1735: 1732:(6.7, Oct 6) 1731: 1728: 1726:(5.8, Sept 5) 1725: 1722: 1720: 1717:(7.5, Feb 1) 1716: 1713: 1711: 1707: 1704: 1703: 1701: 1699: 1695: 1689: 1685: 1682: 1680: 1676: 1673: 1671: 1667: 1664: 1662: 1658: 1655: 1652: 1649: 1646: 1643: 1642: 1640: 1638: 1634: 1628: 1624: 1621: 1619: 1615: 1612: 1610: 1607:(7.7, Aug 6) 1606: 1603: 1601: 1597: 1594: 1592: 1588: 1585: 1584: 1582: 1580: 1576: 1570: 1566: 1563: 1561:(8.0, Nov 25) 1560: 1557: 1555:(8.0, Nov 18) 1554: 1551: 1549: 1545: 1542: 1539: 1536: 1534: 1530: 1527: 1525: 1521: 1518: 1517: 1515: 1513: 1509: 1502: 1501:New Hampshire 1499: 1497: 1493: 1490: 1487: 1484: 1482: 1479:(8.2, May 24) 1478: 1475: 1473:(6.9, May 18) 1472: 1469: 1468: 1466: 1464: 1460: 1451: 1446: 1444: 1439: 1437: 1432: 1431: 1428: 1422: 1419: 1416: 1413: 1409: 1405: 1401: 1399: 1398: 1393: 1390: 1387: 1384: 1382: 1378: 1375: 1373: 1369: 1364: 1363: 1343: 1339: 1338: 1331: 1312: 1308: 1304: 1300: 1296: 1292: 1288: 1281: 1277: 1271: 1260:September 29, 1255: 1251: 1245: 1237: 1233: 1228: 1223: 1219: 1215: 1211: 1207: 1203: 1196: 1194: 1185: 1181: 1176: 1171: 1167: 1163: 1159: 1155: 1151: 1144: 1129: 1125: 1121: 1117: 1113: 1109: 1105: 1101: 1097: 1090: 1074: 1070: 1066: 1062: 1058: 1054: 1050: 1046: 1042: 1038: 1034: 1030: 1023: 1021: 1012: 1008: 1003: 998: 994: 990: 986: 979: 977: 960: 956: 950: 934: 930: 926: 920: 904: 900: 896: 890: 888: 872: 868: 864: 860: 856: 852: 848: 841: 839: 829: 824: 820: 816: 812: 808: 804: 797: 795: 793: 791: 789: 787: 771: 767: 763: 762: 754: 743:September 10, 738: 734: 730: 724: 722: 720: 715: 705: 702: 700: 697: 695: 692: 691: 687: 676: 673: 672:Hawaii portal 662: 659: 658:Alaska portal 648: 641: 639: 633: 631: 627: 623: 618: 613: 609: 608:Kauai, Hawaii 598: 595: 591: 587: 579: 574: 570: 561: 545: 543: 539: 535: 531: 527: 523: 519: 515: 511: 507: 503: 502:Pacific Plate 499: 495: 487: 483: 478: 469: 467: 466:Unimak Island 463: 459: 455: 451: 447: 438: 429: 420: 416: 412: 402: 398: 394: 390: 386: 383: 376: 369: 366:United States 364: 360: 357: 353: 350: 347: 343: 338: 310: 306: 302: 298: 295: 286: 277: 268: 264: 260: 256: 246:April 1, 1946 245: 241: 238: 235: 233: 228: 225: 222: 219: 215: 211: 208: 204: 48: 40: 36: 30: 25: 16: 3205:Other topics 3181:Exxon Valdez 3180: 3153:Project Hula 3143:World War II 2976:2012 Brawley 2930:2021 Chignik 2835:2010 Indiana 2785:2003 Alabama 2768:21st century 2714:1992 Landers 2529:1949 Olympia 2513: 2449:1925 Montana 2392:20th century 2323:1868 Hayward 2308:1865 Memphis 2196:2021 Chignik 2093: 2023: 2018: 1995: 1986: 1977: 1951:(6.3, Dec 4) 1943: 1928: 1919: 1910: 1888: 1879: 1860:(n/a, May 6) 1833: 1824: 1815: 1808:(7.6, Nov 2) 1794: 1779: 1770: 1766: 1742: 1733: 1718: 1709: 1687: 1678: 1669: 1666:Central Java 1660: 1626: 1617: 1608: 1599: 1590: 1568: 1559:Gloria Fault 1547: 1532: 1523: 1495: 1488:(7.5, Aug 1) 1480: 1408:bibliography 1395: 1346:, retrieved 1336: 1330: 1320:February 15, 1318:. Retrieved 1311:the original 1290: 1286: 1276:Kanamori, H. 1270: 1258:. Retrieved 1244: 1209: 1205: 1157: 1153: 1143: 1131:. Retrieved 1103: 1099: 1089: 1077:. Retrieved 1036: 1032: 992: 988: 963:. Retrieved 959:the original 949: 937:. Retrieved 928: 919: 907:. Retrieved 903:the original 898: 874:. Retrieved 854: 850: 810: 806: 774:, retrieved 760: 753: 741:. Retrieved 634: 612:Hilo, Hawaii 604: 551: 491: 453: 410: 408: 381: 35:Hilo, Hawaii 15: 2925:2020 Sparta 2890:2018 Hawaii 2885:2018 Alaska 2825:2010 Eureka 2780:2002 Denali 2694:1990 Upland 2659:1983 Kaoiki 2639:1980 Eureka 2624:1975 Hawaii 2619:1975 Morris 2574:1964 Alaska 2554:1958 Huslia 2489:1935 Helena 2469:1932 Eureka 2459:1927 Lompoc 2358:1887 Sonora 2333:1871 LānaÊ»i 2318:1868 Hawaii 2172:2018 Kodiak 2142:2002 Denali 2118:1964 Alaska 2106:1958 Huslia 1907:Lady Caycay 1776:Varto–Hınıs 1715:Bolu–Gerede 1684:Tosya–Ladik 1397:LiveScience 1348:February 9, 909:February 2, 899:www.usc.edu 518:strike-slip 332: / 220: event 130:King Salmon 116:White Horse 3220:Categories 3051:Prehistory 2961:2001 Enola 2940:2023 Texas 2820:2008 Wells 2246:Historical 2148:2013 Craig 1806:Kyrgyzstan 1553:HyĆ«ga-nada 1421:transcript 1160:(7): 127. 929:Britannica 710:References 630:California 622:Washington 548:Earthquake 486:seismicity 400:Casualties 349:Megathrust 209: time 3183:oil spill 3126:Fairbanks 2966:2008 Reno 2815:2008 Reno 2419:1914 Reno 1858:Wisconsin 1605:Guatemala 1544:Van–ErciƟ 1471:El Centro 1236:259868444 1184:249857173 1133:August 8, 1069:128624810 965:August 7, 939:August 7, 876:August 8, 776:August 3, 640:in 1965. 494:Kamchatka 488:of Alaska 482:tectonics 374:intensity 308:Epicenter 266:Magnitude 88:Fairbanks 60:Anchorage 3193:timeline 3116:Klondike 1992:Karlıova 1940:Ashgabat 1876:Dustabad 1864:Gisborne 1852:Gisborne 1739:Tƍnankai 1706:San Juan 1486:Shakotan 1342:archived 1278:(1972). 1254:Archived 1128:32932011 1073:Archived 1011:55917937 933:Archived 770:archived 737:Archived 644:See also 578:Honolulu 530:Yakataga 439:9.3 or ( 380:MMI VI ( 320:162°50â€ČW 172:St. Paul 144:Unalaska 1968:Olympia 1821:Hsinhua 1800:Sagaing 1675:Tottori 1587:Ecuador 1565:Chungpu 1492:Vrancea 1410:and/or 1372:YouTube 1295:Bibcode 1214:Bibcode 1162:Bibcode 1108:Bibcode 1079:July 3, 1061:1683431 1041:Bibcode 1033:Science 995:: 1–4. 859:Bibcode 815:Bibcode 601:Tsunami 508:of the 458:tsunami 452:of VI ( 430:) 8.6, 403:165–173 392:Tsunami 317:53°29â€ČN 250:1946-04 248: ( 2954:Swarms 2090:(8.35) 1983:Ambato 1916:Litang 1885:Satipo 1830:Nankai 1761:Valais 1645:Ovalle 1529:Colima 1520:Sa'dah 1406:has a 1234:  1182:  1126:  1067:  1059:  1009:  628:, and 626:Oregon 594:P wave 590:S wave 454:Strong 419:Alaska 382:Strong 363:Alaska 359:Hawaii 287:, 9.3 278:, 8.6 237:ComCat 224:898313 158:Anadyr 74:Juneau 2198:(8.2) 2192:(7.6) 2186:(7.8) 2180:(7.0) 2174:(7.9) 2168:(7.1) 2162:(6.0) 2156:(7.9) 2150:(7.6) 2144:(7.9) 2138:(7.5) 2132:(7.6) 2126:(8.7) 2120:(9.2) 2114:(7.8) 2108:(7.3) 2102:(8.6) 2096:(8.6) 2084:(8.2) 2078:(9.3) 1974:Khait 1934:Salta 1925:Fukui 1870:Assam 1314:(PDF) 1283:(PDF) 1232:S2CID 1180:S2CID 1124:S2CID 1065:S2CID 1057:JSTOR 1007:S2CID 506:crust 300:Depth 261:02:29 230:USGS- 3121:Nome 1960:1949 1899:1948 1844:1947 1812:Peru 1753:1946 1698:1944 1637:1943 1614:Peru 1579:1942 1512:1941 1477:Lima 1463:1940 1402:The 1350:2007 1322:2016 1262:2018 1135:2022 1081:2022 967:2022 941:2022 911:2016 878:2022 778:2018 745:2011 617:Maui 484:and 409:The 372:Max. 345:Type 269:7.4 232:ANSS 186:Nome 102:Adak 1370:on 1303:doi 1222:doi 1210:118 1170:doi 1158:127 1116:doi 1049:doi 1037:207 997:doi 867:doi 823:doi 811:165 464:on 218:ISC 207:UTC 3222:: 1978:‡† 1944:‡† 1880:‡† 1795:‡† 1710:†‡ 1688:‡† 1627:†‡ 1524:†‡ 1496:†‡ 1394:– 1379:– 1301:. 1289:. 1285:. 1230:. 1220:. 1208:. 1204:. 1192:^ 1178:. 1168:. 1156:. 1152:. 1122:. 1114:. 1104:41 1102:. 1098:. 1071:. 1063:. 1055:. 1047:. 1035:. 1031:. 1019:^ 1005:. 993:44 991:. 987:. 975:^ 931:. 927:. 897:. 886:^ 865:. 855:84 853:. 849:. 837:^ 821:. 809:. 805:. 785:^ 768:, 735:. 731:. 718:^ 632:. 624:, 544:. 417:, 361:, 3020:e 3013:t 3006:v 2231:e 2224:t 2217:v 2057:e 2050:t 2043:v 2024:‡ 2019:† 1996:† 1987:† 1929:† 1920:† 1911:† 1889:† 1834:† 1825:† 1816:† 1780:† 1771:† 1743:† 1734:† 1719:† 1679:† 1670:† 1661:† 1618:† 1609:† 1600:† 1591:† 1569:† 1548:† 1533:† 1481:† 1449:e 1442:t 1435:v 1324:. 1305:: 1297:: 1291:6 1264:. 1238:. 1224:: 1216:: 1186:. 1172:: 1164:: 1137:. 1118:: 1110:: 1083:. 1051:: 1043:: 1013:. 999:: 969:. 943:. 913:. 880:. 869:: 861:: 831:. 825:: 817:: 747:. 582:t 567:w 565:M 558:s 556:M 444:s 442:M 435:t 433:M 426:w 424:M 384:) 292:t 290:M 283:w 281:M 274:s 272:M 252:)

Index


Hilo, Hawaii
1946 Aleutian Islands earthquake is located in Alaska
UTC
ISC
898313
ANSS
ComCat
Ms
Mw
Mt
53°29â€ČN 162°50â€ČW / 53.49°N 162.83°W / 53.49; -162.83
Megathrust
Hawaii
Alaska
MMI VI (Strong)
Aleutian Islands
Alaska
Mw
Mt
Ms
Mercalli intensity
tsunami
Scotch Cap Lighthouse
Unimak Island

tectonics
seismicity
Kamchatka
Aleutian Trench

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑