1931 Valentine earthquake

1931 Valentine earthquake
Valentine
Date	August 16, 1931 (1931-08-16)
Origin time	11:40:25 UTC ^[1]
Magnitude	6.5 M_w ^[1]
Depth	10 km (6.2 mi) ^[1]
Epicenter	30°40′N 104°22′W / 30.66°N 104.37°W / 30.66; -104.37Coordinates: 30°40′N 104°22′W / 30.66°N 104.37°W / 30.66; -104.37 ^[1]
Type	Oblique-slip ^[2]
Max. intensity	VIII (Severe) ^[3]

The 1931 Valentine earthquake occurred on August 16 with a moment magnitude of 6.5 and a maximum Mercalli intensity of VIII (Severe). Though no casualties were reported, the rupture caused damage to many homes and buildings in the town of Valentine. It remains the most powerful earthquake in the state of Texas.

Damage

Every building in the town excluding those made from wood frames sustained damage. Chimneys also toppled or cracked following the quake. The local school facility was damaged beyond repair, and its yard sustained minor cracks. Buildings built with adobe had walls collapse, while wooden structures displayed cracked ceilings. Other walls consisting of concrete, brick, and similar materials had large cracks. Tombstones were reported to have been rotated somewhere within the town. Damage also occurred in the counties of Brewster, Culberson, Jeff Davis, and Presidio.^[3]

Several episodes of landslides resulted from the tremor. Such incidents took place in the Van Horn Mountains, the Chisos Mountains, southwest of Lobo, near the Big Bend, and to the northwest near Pilares and Porvenir. In New Mexico, the Guadalupe Mountains also hosted landslides; in Picacho, rock and mudslides were reported. Hydrologic issues occurred in several artificial water bodies, leading to muddied water.^[3]

References

1 2 3 4 ISC (2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
↑ Doser, D. I. (1987), "The 16 August 1931 Valentine, Texas, earthquake: Evidence for normal faulting in west Texas", Bulletin of the Seismological Society of America, Seismological Society of America, 77 (6): 2016
1 2 3 Stover, C. W.; Coffman, J. L. (1993). Seismicity of the United States, 1568–1989 (Revised). U.S. Geological Survey professional paper 1527. United States Government Printing Office. pp. 362, 364.

Sources

Ni, J. F.; Reilinger, R. E.; Brown, L. D. (1981), "Vertical crustal movements in the vicinity of the 1931 Valentine, Texas, earthquake", Bulletin of the Seismological Society of America, Seismological Society of America, 71 (3): 857–863

Earthquakes in the United States

Historical	1638 New Hampshire 1663 Charlevoix 1700 Cascadia 1755 Cape Ann 1811–12 New Madrid 1812 Wrightwood 1838 San Andreas 1857 Fort Tejon 1865 Memphis 1867 Manhattan, Kansas 1868 Hawaii 1868 Hayward 1872 Lone Pine 1872 North Cascades 1886 Charleston 1887 Sonora 1892 Laguna Salada 1892 Vacaville–Winters

20th-century	1906 San Francisco 1906 Aleutian Islands 1909 Wabash River 1915 Pleasant Valley 1916 Irondale 1918 San Jacinto 1925 Santa Barbara 1931 Valentine 1932 Eureka 1933 Long Beach 1935 Helena 1940 El Centro 1940 New Hampshire 1944 Cornwall–Massena 1946 Aleutian Islands 1947 Wisconsin 1948 Desert Hot Springs 1949 Olympia 1952 Kern County 1957 Andreanof Islands 1957 San Francisco 1959 Hebgen Lake 1964 Alaska 1965 Rat Islands 1965 Puget Sound 1968 Illinois 1969 Santa Rosa 1971 San Fernando 1975 Near Islands 1975 Morris 1975 Hawaii 1979 Coyote Lake 1979 Imperial Valley 1980 Eureka 1983 Coalinga 1983 Borah Peak 1984 Morgan Hill 1986 North Palm Springs 1986 Chalfant Valley 1987 Whittier Narrows 1989 Loma Prieta 1990 Upland 1991 Sierra Madre 1992 Cape Mendocino 1992 Landers 1992 Big Bear 1993 Scotts Mills 1993 Klamath Falls 1994 Northridge 1995 Marathon 1996 Duvall 1998 Pymatuning 1999 Hector Mine 2000 Yountville

21st-century	2001 Nisqually 2002 Denali 2003 Alabama 2003 San Simeon 2006 Gulf of Mexico 2006 Hawaii 2007 Alum Rock 2008 Illinois 2008 Chino Hills 2010 Eureka 2010 Illinois 2010 Baja California 2010 Indiana 2011 Colorado 2011 Virginia 2011 Oklahoma 2014 Aleutian Islands 2014 Southeast Alaska 2014 South Napa 2016 Oklahoma

Swarms	2001 Enola 2008 Reno 2010–11 Guy-Greenbrier 2012 Brawley 2009–16 Oklahoma

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1931 Valentine earthquake

Damage

See also

References