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1921 Sevier Valley earthquake

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32: 349:, reported sunken foundations, damaged roofs from collapsing chimneys and brick walls, and brick, adobe, and stone buildings were significantly damaged. More than half of the residences in the town were seriously damaged, a dozen were damaged enough to be condemned, and most residences received some cracking and plaster damage. The newly built schoolhouse had walls collapse and a damaged roof, causing it to have to be rebuilt. Damage in 53: 39: 366:
were caused in various canyons near the affected towns. Monroe was especially hard hit, with almost all chimneys being destroyed and many buildings being damaged beyond repair. A man seated high on a bank of a river was thrown down to the edge of the river, the hot springs were discolored by iron oxide again, and the Monroe City Hall was "shattered".
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6.3. It was felt in an area of between 2,500 square kilometers (970 sq mi) and 5,100 square kilometers (2,000 sq mi), which is considered a small area for a quake of this size. The farthest distance from the epicenter for the felt area was 25 miles (40 km). The quake lasted
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On 1 October, the second major aftershock destroyed many of the damaged buildings, including a paint store in Elsinore. It also caused new damage to undamaged buildings, and caused previously-damaged buildings to be completely destroyed. More large boulders were dislodged and additional landslides
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of VII ("Very Strong"). The epicenter was at the same location as the initial quake, and the felt area was similar. The second major aftershock was the same magnitude and intensity as the initial quake, was in the same location, and felt in a similarly sized area. This quake was reported as "quick
261:, United States, lasting for 7–10 seconds. This quake was preceded by several weeks of smaller quakes. A major aftershock occurred on the same day at approximately 7:30 PM MT, and a second major aftershock occurred on Saturday, 1 October at approximately 8:32 AM MT. 357:
The first major aftershock—in the evening on the same day—did further damage to structures, especially those already affected by the primary quake. Structures in Monroe received significantly more damage from this aftershock. Damage was also reported in
245:, United States. The first aftershock occurred in the evening on the same day, and a second aftershock occurred two days later on 1 October. No people were killed in the quake or in the subsequent aftershocks. 353:
included collapsed pipe trenches, cracked buildings, and the hot springs at the town turned "blood red" from iron oxide. Large boulders were dislodged and some landslides were reported in canyons near Monroe.
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5.2 and an intensity of VIII ("Severe"). An official USGS report published in 1988 assigned the modified magnitude of
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No people were killed in the quake, though at least two were injured by falling bricks or plaster.
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The primary earthquake struck on Thursday 29 September 1921 at approximately 7:12 AM
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6.3 earthquake that occurred on Thursday, 29 September 1921 at approximately 7:12 AM
1215: 346: 258: 242: 342:$ 100,000 in damage were caused (over US$ 1.44 million in 2020) by the primary quake. 2034: 1220: 1241: 350: 338:
Damage to chimneys and brick walls from the initial quake was "considerable". Over
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and short as the detonation of a cannon". The quakes were felt as far north as
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was a series of three earthquakes. The primary quake was a magnitude
286:
report in their historical earthquakes list stated a magnitude of
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indicates earthquake resulting in at least 30 deaths
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(4 April 1988). 404:Peterson, Sheryl (10 January 2020). 669:from the original on 21 April 2020 552:from the original on 18 March 2020 416:from the original on 20 April 2020 14: 308:The first major aftershock was a 282:of VIII ("Severe"). The official 1273:Earthquakes in the United States 51: 37: 30: 695:from the original on 4 May 2020 653:"Summary of Newspaper Articles" 601:United States Geological Survey 576:United States Geological Survey 509:United States Geological Survey 445:United States Geological Survey 178: 1231:Utah Seismic Safety Commission 625:"Utah is shaken by earthquake" 540:Dunn, Scott (9 October 2012). 441:"M 5.2 - Utah - Utah Overview" 1: 572:"M 5.2 - Utah Impact Summary" 226:1921 Sevier Valley earthquake 691:. Official Data Foundation. 824:(6.3/5.7/6.3, Sep 29/Oct 1) 511:. Open-File Report 88-404. 92:29 September 1921 2077: 1934:2018 Southern Appalachian 1091: 1008:(7.1/7.1, Apr 14/Apr 18) 26: 22:1921 Richfield earthquake 1322:1812 San Juan Capistrano 740:Earthquakes in the 1920s 269:The initial quake was a 1954:2020 Monte Cristo Range 1703:1986 North Palm Springs 1558:1948 Desert Hot Springs 265:Magnitude and intensity 2005:2010–11 Guy-Greenbrier 1578:1957 Andreanof Islands 1402:1892 Vacaville–Winters 1347:1867 Manhattan, Kansas 1226:Utah Geological Survey 2061:September 1921 events 2015:2009–present Oklahoma 1904:2014 Southeast Alaska 1899:2014 Aleutian Islands 1713:1987 Whittier Narrows 1623:1968 Borrego Mountain 1573:1954 Churchill County 1548:1946 Aleutian Islands 1543:1944 Cornwall–Massena 1443:1906 Aleutian Islands 1287:1585 Aleutian Islands 899:Charlevoix–Kamouraska 1864:2010 Baja California 1718:1987 Imperial Valley 1708:1986 Chalfant Valley 1668:1979 Imperial Valley 1463:1915 Pleasant Valley 1458:1915 Imperial Valley 326:and as far south as 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earthquakes 1844:2008 Chino Hills 1788:1999 Hector Mine 1738:1992 Joshua Tree 1723:1989 Loma Prieta 1698:1984 Morgan Hill 1678:1981 Westmorland 1663:1979 Coyote Lake 1618:1965 Puget Sound 1613:1965 Rat Islands 1598:1959 Hebgen Lake 1568:1952 Kern County 1473:1918 San Jacinto 1417:1899 San Jacinto 1412:1898 Mare Island 1332:1838 San Andreas 1266: 1259: 1252: 1243: 1133: 1126: 1119: 1110: 812:(6.1, August 14) 734: 727: 720: 711: 705: 704: 702: 700: 685: 679: 678: 676: 674: 668: 657: 649: 640: 639: 637: 635: 629: 621: 612: 611: 609: 607: 593: 587: 586: 584: 582: 568: 562: 561: 559: 557: 537: 528: 527: 525: 523: 517: 506: 497: 456: 455: 453: 451: 437: 426: 425: 423: 421: 401: 315: 302: 293: 276: 235: 194: 192: 180: 163: 162: 160: 159: 158: 153: 152:38.68°N 112.15°W 149: 146: 145: 144: 141: 124: 99: 97: 55: 54: 41: 40: 34: 24: 2076: 2075: 2071: 2070: 2069: 2067: 2066: 2065: 2031: 2030: 2029: 2024: 2020:2019 Ridgecrest 1983: 1979:2024 New Jersey 1939:2019 Ridgecrest 1909:2014 South Napa 1834:2006 Kiholo Bay 1824:2003 San Simeon 1797: 1793:2000 Yountville 1783:1998 Pymatuning 1773:1994 Northridge 1758:1992 St. George 1688:1983 Borah Peak 1643:1973 Point Mugu 1633:1969 Santa Rosa 1593:1958 Lituya Bay 1528:1936 State Line 1513:1933 Long Beach 1421: 1407:1895 Charleston 1387:1886 Charleston 1362:1870 Charlevoix 1337:1857 Fort Tejon 1312:1783 New Jersey 1297:1663 Charlevoix 1275: 1270: 1240: 1235: 1206:Hurricane Fault 1201:Geology of Utah 1189: 1174:1992 St. George 1142: 1137: 1107: 1102: 1097: 1087: 1029: 1006:Chirpan–Plovdiv 992: 974:(6.3, July 11) 925: 885: 849:(7.0, March 24) 827: 796: 741: 738: 708: 698: 696: 687: 686: 682: 672: 670: 666: 655: 651: 650: 643: 633: 631: 627: 623: 622: 615: 605: 603: 595: 594: 590: 580: 578: 570: 569: 565: 555: 553: 539: 538: 531: 521: 519: 515: 504: 499: 498: 459: 449: 447: 439: 438: 429: 419: 417: 403: 402: 379: 375: 336: 314: 301: 292: 275: 267: 251: 234: 186: 184: 156: 154: 150: 147: 142: 139: 137: 135: 134: 123: 104:Local time 95: 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Richfield 1429: 1427: 1423: 1422: 1420: 1419: 1414: 1409: 1404: 1399: 1394: 1389: 1384: 1379: 1374: 1369: 1364: 1359: 1354: 1349: 1344: 1339: 1334: 1329: 1324: 1319: 1314: 1309: 1304: 1299: 1294: 1289: 1283: 1281: 1277: 1276: 1271: 1269: 1268: 1261: 1254: 1246: 1237: 1236: 1234: 1233: 1228: 1223: 1218: 1216:Toroweap Fault 1213: 1208: 1203: 1197: 1195: 1194:Related topics 1191: 1190: 1188: 1187: 1185:2020 Salt Lake 1182: 1176: 1171: 1166: 1161: 1156: 1154:1901 Richfield 1150: 1148: 1144: 1143: 1138: 1136: 1135: 1128: 1121: 1113: 1104: 1103: 1092: 1089: 1088: 1086: 1085: 1079: 1078:(7.8, June 17) 1073: 1069:(6.3, May 18) 1064: 1055: 1049: 1045:(6.9, Jan 17) 1039: 1037: 1031: 1030: 1028: 1027: 1018: 1012: 1002: 1000: 994: 993: 991: 990: 984: 978: 969: 965:(7.6, May 22) 960: 956:(7.1, Apr 14) 951: 942: 935: 933: 927: 926: 924: 923: 922:(6.8, June 29) 917: 916:(6.9, June 27) 911: 907:(7.0, Mar 16) 902: 895: 893: 887: 886: 884: 883: 871: 862: 853: 844: 837: 835: 829: 828: 826: 825: 819: 806: 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Index

1921 Sevier Valley earthquake is located in Utah
UTC
ANSS
ComCat
MDT
Mw
38°41′N 112°09′W / 38.68°N 112.15°W / 38.68; -112.15
Utah
MMI VIII (Severe)
Mw
MT
Elsinore, Utah
MT
Elsinore, Utah
Mw
intensity
USGS
Mw
Mw
Mw
intensity
Salina
Marysvale
US
Elsinore
Monroe
Richfield


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