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2020 Sparta earthquake

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564:. The town's manager, Ryan Wilmoth, said there were "very minor injuries" but did not specify the number of people injured. There was at least one confirmed injury. Many homes and business infrastructure were damaged; most were material damage that left the structure's integrity unaffected. A majority of structural damage was observed in ureinforced brick, masonry and concrete elements. Within a week of the earthquake, there were 60 cases of serious damage and 465 minor damage reports. Seventeen buildings were listed as unsafe for use and five were eventually demolished. At least 19 people lost their homes. Carpark fracturing and smashed ceramics were reported at Scott's Landscaping Nursery and Farms while at the Kathy Shore Tree Nursery, its owner estimated the repair cost to be several hundred. The Alleghany County administration office was also damaged. The shock also damaged a 631: 396: 62: 491:. Faults in this part of the range typically trend northeast. The earthquake ruptured along a fault trend that is consistent with west–northwest to east–west striking structures that crosses major northeast-trending geological structures of the mountain range. However, the geology of these faults are poorly understood. The earthquake occurred in a region that progresses between thrust and strike-slip tectonics; the dominant crustal strain is configured in a northeast–southwest to east-northeast–west-southwest direction. 747: 617: 125: 111: 97: 83: 69: 1080: 904: 388: 535:
Ground fracturing was discovered south and southeast of Sparta while none were observed in the immediate epicenter area. A surface rupture extending over 1.5 mi (2.4 km) appeared southeast of the town. The earthquake ruptured along this previously unmapped fault within the upper bedrock,
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issued $ 1.17 million in loans. As the earthquake and its aftermath did not meet FEMA's disaster assistance criteria, the legislature of North Carolina allocated $ 24 million for relief. The project and its funding established a three-year project, the Earthquake Recovery Program, operated by the
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of 5.1, occurring at a shallow depth of 4.7 miles (7.6 km). Rupture occurred on the previously unmapped Little River Fault. A surface rupture was documented following the earthquake; the first of its kind in the Eastern United States. Shaking was reported in parts of the
605:, toured the damage in Sparta, and reassured its residents; "We’ve dealt with a hurricane, a violent tornado, and now an earthquake all in the middle of a pandemic: North Carolinians are resilient." Nine displaced people from six households received help from the Red Cross. 928:
Figueiredo, Paula; Hill, Jesse; Merschat, Arthur; Scheip, Corey; Stewart, Kevin; Owen, Lewis; Wooten, Richard; Carter, Mark; Szymanski, Eric; Horton, Stephen; Wegmann, Karl; Bohnenstiehl, DelWayne; Thompson, Gary; Witt, Anne; Cattanach, Bart (March 2022).
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According to the United States Geological Survey, the mainshock was the result of oblique-reverse faulting within the shallow crust of the North American Plate. The "relatively uncommon" earthquake occurred in the interior of the plate, known as an
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as officials did not raise any request on the site. Scammers took advantage of the damage, impersonating construction workers and charging people up to $ 500 for repairs only to never provide the services. Governor of North Carolina,
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2.9 event that struck two days after the mainshock. There were 20 recorded aftershocks by August 28. In Sparta, the earthquake was assigned a maximum Modified Mercalli intensity of VI–VII and its peak ground acceleration exceeded 0.2
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of the Appalachians ceased. This exposed the Appalachians to weathering that eventually eroded them down to an almost flat terrain as the Mesozoic Era concluded. Another period of uplifting the eroded topography occurred during the
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strata. The surface fault trace is characterised by scarps and folds measuring 1.9–11.8 in (4.8–30.0 cm) high, and 19.7 in (50 cm) at its maximum. It was the first ever documented
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Office of State Budget and Management and North Carolina Emergency Management. By 2021, there were over 230 requests for home repair assistance, averaging $ 44 thousand per home.
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dubbed the Little River Fault. Trenching of the Little River Fault indicate it is a thrust fault. This west-northwest–east-southeast striking fault is located within the local
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Preliminary Map of the Surface Rupture From the August 9, 2020, Mw 5.1 Earthquake Near Sparta, North Carolina—The Little River Fault and Other Possible Coseismic Features
61: 2566: 1762: 2520: 1481: 1299: 516:, the aftershocks, and field data favored a south-southwest dipping fault trending approximately west-northwest. The strongest in the aftershock sequence was a 2576: 2098: 1271: 2571: 2561: 1755: 371:. It was the strongest earthquake recorded in North Carolina in 104 years, the second-strongest in the state's history, and the largest to strike the 819: 1778: 649: 512:
solutions for the earthquake indicate rupture occurred on a moderately dipping fault either striking to the northwest or south. Further analysis of
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from the ground, and toppled or destroyed several chimneys. Parts of Tennessee, Ohio, Washington D.C., and Atlanta also felt the earthquake.
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in 1916. Over 80,000 people reported shaking from the earthquake. The earthquake was also the strongest to strike the East Coast since 2011.
2048: 1822: 2439: 1510: 725: 931:"The Mw 5.1, 9 August 2020, Sparta Earthquake, North Carolina: The First Documented Seismic Surface Rupture in the Eastern United States" 823: 2223: 1827: 585: 561: 2581: 2459: 2208: 2063: 1594: 148: 770: 670: 2083: 1852: 1474: 1213: 1129: 1001: 303: 1548: 391:
Illustrations depicting the movement of normal and reverse faults. The 2020 Sparta earthquake's movement was reverse (right image).
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from an earthquake in the Eastern United States, and the second observation made in Eastern North America, the other being the
372: 696: 2449: 2424: 2334: 2273: 2043: 2013: 1882: 1565: 21: 1155: 229: 2454: 2394: 2088: 2023: 1993: 1983: 1943: 1902: 1797: 1577: 589: 2268: 2238: 2153: 2143: 2108: 1953: 1887: 1877: 1467: 1872: 1522: 2525: 2444: 2349: 2293: 2243: 2228: 2203: 2183: 2168: 2138: 2123: 2118: 2103: 2073: 1978: 1922: 1917: 1837: 1496: 1493: 1490: 644: 1030: 697:"5.1 Magnitude Earthquake Rattles North Carolina, South Carolina, Virginia, Tennessee; Roads cracked, dishes broken" 395: 2484: 2414: 2339: 2329: 2298: 2288: 2278: 2263: 2193: 2148: 2033: 2018: 1912: 1892: 1867: 1842: 1817: 1802: 1736: 1686: 1355: 368: 137: 1328: 2546: 2434: 2409: 2314: 2058: 2038: 2003: 1938: 1617: 1531: 588:
and state financial aid. At least $ 112 thousand in state assistance grants were handed out to the affected. The
2474: 2419: 2399: 2389: 2384: 2379: 2344: 2283: 2258: 2188: 2133: 1973: 1812: 1807: 1709: 1381: 517: 420: 376: 364: 203: 2469: 2374: 2324: 2253: 2068: 1988: 1862: 1847: 1832: 1680: 1663: 1640: 1600: 1516: 1242:"525 buildings damaged: Sparta earthquake destruction worse than initially thought, emergency officials say" 1059:(Report). U.S. Geological Survey Open-File Report 2023–1074, 1 sheet, scale 1:24,000. US Geological Survey. 408: 2500: 2429: 2364: 2319: 2233: 2198: 2178: 2163: 2158: 2113: 2093: 2028: 2008: 1998: 1897: 1857: 1623: 1571: 545: 359: 351: 2505: 2479: 2359: 2354: 1958: 636: 622: 528: 501: 432: 428: 347: 193: 850:"Complex rupture dynamics of the extremely shallow August 2020 M5.1 Sparta, North Carolina earthquake" 508:
of magnitudes between 2.1 and 2.6 were recorded beginning about 25 hours prior to the earthquake. The
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Neves, Miguel; Chuang, Lindsay Y.; Li, Wei; Peng, Zhigang; Figueiredo, Paula M.; Ni, Sidao (2024).
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Severe damage occurred in Sparta, further impacting businesses which were already affected by the
960: 581: 476: 448: 797: 154: 982: 893: 733: 552:  6.3). The rupture buckled a local road and damaged water lines and several properties. 167: 355: 1060: 950: 869: 468: 464: 460: 456: 1098: 774: 407:  5.1, it was the state's largest earthquake since a magnitude 5.2 earthquake struck 541: 509: 452: 275: 272: 1031:"Crack in ground more than 1.5 miles long found at site of 2020 quake in North Carolina" 946: 865: 443:, roughly 480 million years ago. This led to the formation of a supercontinent known as 285: 726:"Powerful 5.1 magnitude earthquake jolts Charlotte area, strongest in NC in 104 years" 2540: 1356:"North Carolina's strongest earthquake in 94 years shakes area along Virginia border" 1300:"People still rattled after North Carolina earthquake that caused significant damage" 1084: 964: 908: 436: 1747: 481: 1382:"5.1-magnitude earthquake strikes North Carolina, is felt hundreds of miles away" 1329:"Multiple aftershocks felt around western NC following 5.1 magnitude earthquake" 1056: 874: 849: 930: 612: 602: 440: 1434:"Gov. Roy Cooper visits Sparta homes, businesses to assess earthquake damage" 447:. Continental collision extended for the next 250 million years, forming the 244: 231: 36: 23: 569: 537: 505: 1130:"NC officials survey earthquake damage in Sparta, look for ways to rebuild" 1459: 771:"Geologic Provinces of the United States: Appalachian Highlands Province" 597: 472: 289: 1184: 1065: 955: 671:"5.1 magnitude earthquake reported near North Carolina-Virginia border" 471:
to North America. When the supercontinent broke apart beginning in the
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DYFI ("Did You Feel It?") responses showing perceived shaking intensity
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This article incorporates text from this source, which is in the
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This article incorporates text from this source, which is in the
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The mainshock source area was in the Blue Ridge Mountains of the
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McLaughlin, Eliott C.; Johnston, Chuck (August 9, 2020).
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which led to aggressive erosion by rivers and streams.
822:. United States Geological Survey. n.d. Archived from 773:. United States Geological Survey. n.d. Archived from 800:. American Association for the Advancement of Science 1726:
indicates earthquake resulting in at least 30 deaths
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In the process, 1770: 1756: 1748: 1482: 1468: 1460: 1265: 1263: 1207: 1205: 50: 1178: 1176: 1064: 954: 873: 580:Wes Brinegar, the town's mayor, issued a 204: 1323: 1321: 843: 841: 650:List of earthquakes in the United States 2567:August 2020 events in the United States 1335:. ABC11 Raleigh-Durham. August 11, 2020 1214:"Residents Still Cleaning Up In Sparta" 1002:"Residents Still Cleaning Up In Sparta" 935:The Geological Society of America Today 661: 358:. The thrust-faulting earthquake had a 854:Communications Earth & Environment 1412:Office of State Budget and Management 1294: 1292: 1123: 1121: 1119: 1024: 1022: 796:Berardelli, Phil (November 3, 2009). 719: 717: 518: 350:that occurred near the small town of 7: 1380:Cappucci, Matthew (August 9, 2020). 798:"The Mountains That Froze the World" 2577:Natural disasters in North Carolina 1128:Kabba, Rasheeda (August 11, 2020). 752:(Data base), U.S. Geological Survey 562:COVID-19 pandemic in North Carolina 467:occurred and micro continents were 110: 14: 1735:Dates for all earthquakes are in 1432:Allman, Megan (August 11, 2020). 96: 2572:Earthquakes in the United States 2562:Alleghany County, North Carolina 1779:Earthquakes in the United States 1406:Evans, Marcia (August 9, 2021). 1270:Allman, Megan (August 9, 2021). 1212:Eiklor, Rose (August 18, 2020). 1078: 1029:Price, Mark (December 8, 2022). 1000:Eiklor, Rose (August 18, 2020). 902: 695:Brackett, Ron (August 9, 2020). 669:Zarrell, Matt (August 9, 2020). 629: 615: 123: 109: 95: 81: 67: 60: 1681:Alaska Peninsula, United States 1641:Alaska Peninsula, United States 1097:Peake, Tracy (March 29, 2022). 431:which formed due to an ancient 296: 82: 1154:Rice, Tony (August 22, 2021). 68: 1: 1658:North Carolina, United States 590:Small Business Administration 645:List of earthquakes in 2020 2598: 1306:. WAVY-TV. August 10, 2020 875:10.1038/s43247-024-01316-8 369:Southeastern United States 346:was a relatively uncommon 2582:Geology of North Carolina 2440:2018 Southern Appalachian 1719: 1687:Aegean Sea, Greece-Turkey 989:. U.S. Geological Survey. 900:. U.S. Geological Survey. 749:Search earthquake catalog 219:4.7 mi (7.6 km) 56: 1828:1812 San Juan Capistrano 427:are part of the eastern 377:2011 Virginia earthquake 177:August 9, 2020 2460:2020 Monte Cristo Range 2209:1986 North Palm Springs 2064:1948 Desert Hot Springs 354:, on August 9 at 08:07 2552:2020 in North Carolina 2511:2010–11 Guy-Greenbrier 2084:1957 Andreanof Islands 1908:1892 Vacaville–Winters 1853:1867 Manhattan, Kansas 1035:The Charlotte Observer 967:– via GSA Today. 730:The Charlotte Observer 546:1989 Ungava earthquake 400: 392: 352:Sparta, North Carolina 344:2020 Sparta earthquake 52:2020 Sparta earthquake 2521:2009–present Oklahoma 2410:2014 Southeast Alaska 2405:2014 Aleutian Islands 2219:1987 Whittier Narrows 2129:1968 Borrego Mountain 2079:1954 Churchill County 2054:1946 Aleutian Islands 2049:1944 Cornwall–Massena 1949:1906 Aleutian Islands 1793:1585 Aleutian Islands 1595:Nevada, United States 1183:Baker, Colby (2022). 987:Comprehensive Catalog 898:Comprehensive Catalog 637:Earth sciences portal 623:North Carolina portal 502:intraplate earthquake 433:continental collision 429:Appalachian Mountains 398: 390: 348:intraplate earthquake 2370:2010 Baja California 2224:1987 Imperial Valley 2214:1986 Chalfant Valley 2174:1979 Imperial Valley 1969:1915 Pleasant Valley 1964:1915 Imperial Valley 1578:Idaho, United States 566:water supply network 425:Blue Ridge Mountains 2450:2020 Salt Lake City 2395:2013 Port Alexander 2335:2006 Gulf of Mexico 2249:1992 Cape Mendocino 2014:1932 Cedar Mountain 1883:1872 North Cascades 1566:Utah, United States 1494:Earthquakes in 2020 1386:The Washington Post 1066:10.3133/ofr20231074 956:10.1130/GSATG517A.1 947:2022GSAT...32....4F 866:2024ComEE...5..163N 826:on January 17, 2013 701:The Weather Channel 489:Alleghanian orogeny 241: /  143:2020-08-09 12:07:37 53: 33: /  2455:2020 Central Idaho 2274:1993 Klamath Falls 2089:1957 San Francisco 2044:1940 New Hampshire 2024:1934 Hansel Valley 1994:1925 Santa Barbara 1984:1921 Sevier Valley 1944:1906 San Francisco 1903:1892 Laguna Salada 1833:1812 Santa Barbara 1823:1811–12 New Madrid 1798:1638 New Hampshire 1664:Bicol, Philippines 1189:Structure Magazine 582:state of emergency 401: 393: 264:Little River Fault 37:35.766°N 117.605°W 2534: 2533: 2269:1993 Scotts Mills 2239:1991 Sierra Madre 2154:1975 Near Islands 2144:1971 San Fernando 2109:1962 Cache Valley 1954:1909 Wabash River 1888:1882 Fort Collins 1878:1872 Owens Valley 1745: 1744: 1444:on March 20, 2021 1248:. August 18, 2020 777:on March 11, 2013 441:Ordovician period 340: 339: 245:36.476°N 81.093°W 2589: 2547:2020 earthquakes 2350:2008 Chino Hills 2294:1999 Hector Mine 2244:1992 Joshua Tree 2229:1989 Loma Prieta 2204:1984 Morgan Hill 2184:1981 Westmorland 2169:1979 Coyote Lake 2124:1965 Puget Sound 2119:1965 Rat Islands 2104:1959 Hebgen Lake 2074:1952 Kern County 1979:1918 San Jacinto 1923:1899 San Jacinto 1918:1898 Mare Island 1838:1838 San Andreas 1772: 1765: 1758: 1749: 1484: 1477: 1470: 1461: 1454: 1453: 1451: 1449: 1440:. Archived from 1429: 1423: 1422: 1420: 1418: 1403: 1397: 1396: 1394: 1392: 1377: 1371: 1370: 1368: 1366: 1351: 1345: 1344: 1342: 1340: 1325: 1316: 1315: 1313: 1311: 1296: 1287: 1286: 1284: 1282: 1267: 1258: 1257: 1255: 1253: 1238: 1229: 1228: 1226: 1224: 1209: 1200: 1199: 1197: 1195: 1180: 1171: 1170: 1168: 1166: 1151: 1145: 1144: 1142: 1140: 1125: 1114: 1113: 1111: 1109: 1094: 1088: 1082: 1081: 1077: 1075: 1073: 1068: 1052: 1046: 1045: 1043: 1041: 1026: 1017: 1016: 1014: 1012: 997: 991: 990: 975: 969: 968: 958: 925: 912: 906: 905: 901: 886: 880: 879: 877: 845: 836: 835: 833: 831: 816: 810: 809: 807: 805: 793: 787: 786: 784: 782: 767: 761: 760: 759: 757: 744: 738: 737: 736:on May 11, 2021. 732:. Archived from 721: 712: 711: 709: 707: 692: 686: 685: 683: 681: 666: 639: 634: 633: 632: 625: 620: 619: 618: 523: 465:active thrusting 415:Tectonic setting 360:moment magnitude 312: 310: 298: 256: 255: 253: 252: 251: 246: 242: 239: 238: 237: 234: 209: 184: 182: 127: 126: 113: 112: 99: 98: 85: 84: 71: 70: 64: 54: 48: 47: 45: 44: 43: 42:35.766; -117.605 38: 34: 31: 30: 29: 26: 2597: 2596: 2592: 2591: 2590: 2588: 2587: 2586: 2537: 2536: 2535: 2530: 2526:2019 Ridgecrest 2489: 2485:2024 New Jersey 2445:2019 Ridgecrest 2415:2014 South Napa 2340:2006 Kiholo Bay 2330:2003 San Simeon 2303: 2299:2000 Yountville 2289:1998 Pymatuning 2279:1994 Northridge 2264:1992 St. George 2194:1983 Borah Peak 2149:1973 Point Mugu 2139:1969 Santa Rosa 2099:1958 Lituya Bay 2034:1936 State Line 2019:1933 Long Beach 1927: 1913:1895 Charleston 1893:1886 Charleston 1868:1870 Charlevoix 1843:1857 Fort Tejon 1818:1783 New Jersey 1803:1663 Charlevoix 1781: 1776: 1746: 1741: 1715: 1710:Central Croatia 1698: 1669: 1646: 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Index

35°45′58″N 117°36′18″W / 35.766°N 117.605°W / 35.766; -117.605
2020 Sparta earthquake is located in North Carolina
UTC
ISC
618711487
ANSS
ComCat
EDT
Mw
36°28′34″N 81°05′35″W / 36.476°N 81.093°W / 36.476; -81.093
Oblique-slip
reverse
North Carolina
Virginia
MMI VII (Very strong)
intraplate earthquake
Sparta, North Carolina
ET
moment magnitude
Midwestern
Southeastern United States
East Coast
2011 Virginia earthquake


Skyland
Piedmont region
Blue Ridge Mountains
Appalachian Mountains
continental collision

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