2011 Colorado earthquake

UTC time| 2011-08-23 05:46:18
USGS-ANSS| ComCat
Local date| August 22, 2011
Local time| 23:46:18 MDT[1]
Magnitude| 5.3 Mw[1]
Depth| 2.6 mi (4.2 km)[1]
Epicenter| 37°04′N 104°42′W﻿ / ﻿37.07°N 104.7°W﻿ / 37.07; -104.7
Type| Dip-slip
Areas affected| Colorado
United States
Max. intensity| MMI VII (Very strong)[1][2]

The 2011 Colorado earthquake occurred on August 22 at 11:46 PM MDT with a moment magnitude of 5.3 and a maximum Mercalli intensity of VII (Very Strong). The epicenter of the intraplate earthquake was 10 mi (20 km) west northwest of Trinidad, Colorado, and 180 mi (290 km) south of Denver, according to the United States Geological Survey (USGS).[1][3][4][5][6] It was the largest natural earthquake to affect Colorado for more than a hundred years.[3]

The earthquake occurred as part of a swarm of smaller quakes that started the previous day. The last time the Colorado region received a series of earthquakes was in 2001, when about a dozen smaller-sized temblors were recorded.[1] The shock occurred as a result of normal faulting and was similar in depth, style and location to the events that made up the 2001 swarm.

## See also

[edit]

* Colorado portal
* Earth sciences portal

* List of earthquakes in 2011
* List of earthquakes in the United States
* 2011 Virginia earthquake – Second M 5.0+ earthquake to hit the United States in less than a day, occurring almost 12 hours later.

## References

[edit]

1. ^ a b c d e f "M5.3 – Colorado". United States Geological Survey. Retrieved August 3, 2018.
2. ^ "Pager– M 5.3– Colorado". United States Geological Survey. 2011. Retrieved August 23, 2011.
3. ^ a b Johnson, Kirk (August 23, 2011). "Rare Strong Earthquake Hits Colorado". The New York Times. Retrieved August 23, 2011.
4. ^ "Minor damage from magnitude-5.3 Colorado quake". Associated Press. August 23, 2011. Retrieved August 23, 2011.[dead link]
5. ^ Williams, Alia (August 23, 2011). "Aftershocks continue to shake Colorado". KXRM. Archived from the original on October 8, 2012. Retrieved August 23, 2011.
6. ^ "No major damage in region in wake of earthquake". The Times-Tribune (Scranton). August 23, 2011. Retrieved August 23, 2011.

Sources

* Barnhart, W. D.; Benz, H. M.; Hayes, G. P.; Rubenstein, J. L.; Bergman, E. (2014), "Seismological and geodetic constraints on the 2011 Mw5.3 Trinidad, Colorado earthquake and induced deformation in the Raton Basin", Journal of Geophysical Research, 119 (10), American Geophysical Union: 7923–7933, Bibcode:2014JGRB..119.7923B, doi:10.1002/2014JB011227, S2CID 128633076
* Rubinsetein, J. L.; Ellsworth, W. L.; McGarr, A.; Benz, H. M. (2014), "The 2001–Present Induced Earthquake Sequence in the Raton Basin of Northern New Mexico and Southern Colorado", Bulletin of the Seismological Society of America, 104 (5), Seismological Society of America: 2162–2181, Bibcode:2014BuSSA.104.2162R, doi:10.1785/0120140009, archived from the original on April 28, 2015

## External links

[edit]

* Wastewater injection is culprit for most earthquakes in southern Colorado and northern New Mexico, study finds – Science Daily
* Was the M5.3 Trinidad, CO Earthquake Natural or Induced? – United States Geological Survey

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← Earthquakes in 2011 →

January|

* Tirúa, Chile (7.1, Jan 2)
* Balochistan, Pakistan (7.2, Jan 19)

February|

* Christchurch, New Zealand (6.3, Feb 22)†

March|

* Sendai, Japan (7.2, Mar 9)
* Yunnan, China (5.4, Mar 10)
* Tōhoku, Japan (Great East Japan) (9.1, Mar 11)†‡
* Sakae, Japan (6.7, Mar 11)
* Nagano, Japan (6.7, Mar 12)
* Shizuoka, Japan (6.0, Mar 15)
* Shan State, Myanmar (6.8, Mar 24)†

April|

* Miyagi, Japan (7.1, Apr 7)
* Fukushima, Japan (6.6, Apr 11)

May|

* Guerrero, Mexico (5.7, May 5)
* Lorca, Spain (5.1, May 11)
* Simav, Turkey (5.8, May 19)

June|

* Christchurch, New Zealand (6.3, June 13)

July|

* Fergana Valley (Uzbekistan, Kyrgyzstan and Tajikistan) (6.2, July 19)

August|

* Trinidad, Colorado (5.3, Aug 22)
* Mineral, Virginia (5.8, Aug 23)

September|

* Aceh Singkil, Indonesia (6.7, Sep 6)
* Sikkim, India (6.8, Sep 18)†

October|

* Van, Turkey (7.2, Oct 23)†

November|

* Prague, Oklahoma (5.7, Nov 6)
* Van, Turkey (5.6, Nov 10)†

December|

* Guerrero, Mexico (6.5, Dec 10)
* Christchurch, New Zealand (5.8, Dec 23)

† indicates earthquake resulting in at least 30 deaths
‡ indicates the deadliest earthquake of the year

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* e

Earthquakes in the United States

Historical|

* 1585 Aleutian Islands
* 1638 New Hampshire
* 1663 Charlevoix
* 1700 Cascadia
* 1755 Cape Ann
* 1783 New Jersey
* 1811–12 New Madrid
* 1812 San Juan Capistrano
* 1812 Santa Barbara
* 1838 San Andreas
* 1857 Fort Tejon
* 1865 Memphis
* 1867 Manhattan, Kansas
* 1868 Hawaii
* 1868 Hayward
* 1870 Charlevoix
* 1871 Lānaʻi
* 1872 Owens Valley
* 1872 North Cascades
* 1882 Fort Collins
* 1886 Charleston
* 1887 Sonora
* 1892 Laguna Salada
* 1892 Vacaville–Winters
* 1895 Charleston
* 1898 Mare Island
* 1899 San Jacinto

20th century|

* 1901 Richfield
* 1906 San Francisco
* 1906 Aleutian Islands
* 1909 Wabash River
* 1914 Reno
* 1915 Imperial Valley
* 1915 Pleasant Valley
* 1916 Irondale
* 1918 San Jacinto
* 1921 Sevier Valley
* 1925 Montana
* 1925 Santa Barbara
* 1927 Lompoc
* 1931 Valentine
* 1932 Eureka
* 1932 Cedar Mountain
* 1933 Long Beach
* 1934 Hansel Valley
* 1935 Helena
* 1936 State Line
* 1940 El Centro
* 1940 New Hampshire
* 1944 Cornwall–Massena
* 1946 Aleutian Islands
* 1947 Wisconsin
* 1948 Desert Hot Springs
* 1949 Olympia
* 1952 Kern County
* 1954 Churchill County
* 1957 Andreanof Islands
* 1957 San Francisco
* 1958 Huslia
* 1958 Lituya Bay
* 1959 Hebgen Lake
* 1962 Cache Valley
* 1964 Alaska
* 1965 Rat Islands
* 1965 Puget Sound
* 1968 Borrego Mountain
* 1968 Illinois
* 1969 Santa Rosa
* 1971 San Fernando
* 1973 Point Mugu
* 1975 Near Islands
* 1975 Morris
* 1975 Hawaii
* 1979 Coyote Lake
* 1979 Imperial Valley
* 1980 Eureka
* 1981 Westmorland
* 1983 Coalinga
* 1983 Borah Peak
* 1983 Kaoiki
* 1984 Morgan Hill
* 1986 North Palm Springs
* 1986 Chalfant Valley
* 1987 Whittier Narrows
* 1987 Imperial Valley
* 1989 Loma Prieta
* 1990 Upland
* 1991 Sierra Madre
* 1992 Joshua Tree
* 1992 Cape Mendocino
* 1992 Landers
* 1992 Big Bear
* 1992 St. George
* 1993 Scotts Mills
* 1993 Klamath Falls
* 1994 Northridge
* 1995 Marathon
* 1998 Pymatuning
* 1999 Hector Mine
* 2000 Yountville

21st century|

* 2001 Nisqually
* 2002 Denali
* 2003 Alabama
* 2003 San Simeon
* 2006 Gulf of Mexico
* 2006 Kiholo Bay
* 2008 Illinois
* 2008 Chino Hills
* 2008 Reno
* 2008 Wells
* 2010 Eureka
* 2010 Baja California
* 2011 Colorado
* 2011 Virginia
* 2011 Oklahoma
* 2013 Port Alexander
* 2014 La Habra
* 2014 Aleutian Islands
* 2014 Southeast Alaska
* 2014 South Napa
* 2016 Oklahoma
* 2018 Alaska
* 2018 Hawaii
* 2018 Anchorage
* 2018 Southern Appalachian
* 2019 Ridgecrest
* 2020 Salt Lake City
* 2020 Central Idaho
* 2020 Monte Cristo Range
* 2020 Sparta
* 2021 Chignik
* 2022 Ferndale
* 2023 Texas
* 2024 New Jersey
* 2024 Cape Mendocino

Swarms|

* 2001 Enola
* 2008 Reno
* 2010–11 Guy–Greenbrier
* 2012 Brawley
* 2009–present Oklahoma
* 2019 Ridgecrest

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