2011 Colorado earthquake

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2011 Colorado Earthquake
2011 Colorado earthquake is located in Colorado
2011 Colorado earthquake
Date August 23, 2011
05:46:19 UTC [1]
Magnitude 5.3 [1]
Depth 2.6 mi (4.2 km) [1]
Epicenter 37°04′12″N 104°42′00″W / 37.070°N 104.700°W / 37.070; -104.700Coordinates: 37°04′12″N 104°42′00″W / 37.070°N 104.700°W / 37.070; -104.700
Type Earthquake
Countries or regions United States
Max. intensity V (Moderate)[2]

The 2011 Colorado Earthquake was a magnitude 5.3 (Mw) intraplate earthquake that occurred on August 22, 2011 at 11:46 PM MDT (05:46 UTC). The epicenter 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][7][8][9] It was the largest natural earthquake to affect Colorado for more than a hundred years.[4]

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][3] The 5.3 magnitude earthquake occurred as a result of normal faulting and was similar in depth, style and location to the events that made up the 2001 swarm.

Impact[edit]

Tremors were felt around the state of Colorado and in areas of New Mexico.[10]

A Las Animas County Sheriff's Office dispatcher said she had received calls from "tons" of county residents who felt the shaking, as well as reports of rockslides along a highway following the quake. USGS geophysicist Jessica Sigala said the quake has the potential of causing minimal damage.[10]

Another USGS geophysicist, Shengzao Chen, said the center had received calls from more than 70 people in Trinidad, Colo., who felt the shaking, as well as several dozen people in New Mexico. More than 30 people in Colorado Springs, about 130 miles from Cokedale, also reported feeling the quake, he said.[10]

See also[edit]


References[edit]

  1. ^ a b c d e "Magnitude 5.3– Colorado". United States Geological Survey. Retrieved August 22, 2011. 
  2. ^ "Pager– M 5.3– Colorado". United States Geological Survey. 2011. Retrieved August 23, 2011. 
  3. ^ a b "Magnitude 5.3 – COLORADO". USGA. Retrieved August 22, 2011. 
  4. ^ a b Johnson, Kirk (August 23, 2011). "Rare Strong Earthquake Hits Colorado". New York Times. Retrieved August 23, 2011. 
  5. ^ "Quakes Rattle Southern Colorado, Northern New Mexico". NPR. August 23, 2011. Retrieved August 23, 2011. 
  6. ^ "Minor damage from magnitude-5.3 Colorado quake". Associated Press. August 23, 2011. Retrieved August 23, 2011. 
  7. ^ Williams, Alia (August 23, 2011). "Aftershocks continue to shake Colorado". KXRM. Retrieved August 23, 2011. 
  8. ^ "No major damage in region in wake of earthquake". The Times-Tribune (Scranton). August 23, 2011. Retrieved August 23, 2011. 
  9. ^ "Earthquakes Strikes Eastern USA & Canada – Goats Faint – UFO Sightings". Cornwall Free News. August 23, 2011. Retrieved August 23, 2011. 
  10. ^ a b c "Magnitude 5.5 earthquake hits southern Colorado". Yahoo. Retrieved August 22, 2011.