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Guy–Greenbrier earthquake swarm: Difference between revisions

Coordinates: 35°17′N 92°22′W / 35.28°N 92.36°W / 35.28; -92.36
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{{Short description|Earthquake swarm in Arkansas, United States}}
The '''Guy-Greenbrier earthquake swarm''' refers to a series of earthquakes in central Arkansas that began in September of 2010.<ref>[http://news.yahoo.com/s/ap/20110301/ap_on_re_us/us_arkansas_earthquakes Largest earthquake in 35 years hits Arkansas] by Sarah Eddington, Associated Press, Tue Mar 1, 12:07 am ET</ref>
{{Infobox earthquake
| title = Guy–Greenbrier earthquake swarm
| map = 2010–11 Guy-Greenbrier earthquake swarm.pdf
| map_size = 300px
| map_alt = Map of earthquakes in Arkansas
| map_caption = Map of earthquake epicenters for the period August 6, 2010 to March 1, 2011
| isc-event = n/a
| anss-url = n/a
| local-date = 2010–11
| duration = Less than one year
| maxmagnitude = 4.7 {{M|w|link=y}}
| meandepth =
| type = [[Intraplate earthquake]]s
| affected = [[Central Arkansas]]
| damage =
| intensity =
| casualties =
| events = 150–160 earthquakes<ref>{{cite report|last1=Peterson|first1=Mark D.|last2=Mueller|first2=Charles S.|last3=Moschetti|first3=Morgan P.|last4=Hoover|first4=Susan M.|last5=Rubinstein|first5=Justin L.|last6=Llenos|first6=Andrea L.|last7=Michael|first7=Andrew J.|last8=Ellsworth|first8=William L.|last9=McGarr|first9=Arthur F.|last10=Holland|first10=Austin A.|last11=Anderson|first11=John G.|title=Incorporating Induced Seismicity in the 2014 United States National Seismic Hazard Model—Results of 2014 Workshop and Sensitivity Studies (USGS Open-File Report 2015–1070)|url=http://pubs.usgs.gov/of/2015/1070/pdf/ofr2015-1070.pdf|publisher=United States Geological Survey|doi=10.3133/ofr20151070|issn=2331-1258|oclc=38116130|date=April 23, 2015|access-date=April 23, 2015|page=13|doi-access=free}}</ref>
}}

The '''Guy–Greenbrier earthquake swarm''' occurred in [[central Arkansas]] beginning in August 2010.<ref>{{cite web |url=http://www.ceri.memphis.edu/GUY/ |title=CERI – Public Awareness – |access-date=2011-03-22 |url-status=dead |archive-url=https://web.archive.org/web/20110307140049/http://www.ceri.memphis.edu/GUY/ |archive-date=2011-03-07 }}</ref> The [[epicenter]]s of earthquakes in the swarm showed a linear distribution, with a clear overall shift in activity towards the southwest with time,<ref name=USGS/> and the largest event in the swarm was the 2011 Arkansas earthquake, at 4.7 on the [[moment magnitude scale]].<ref name=USGS>{{cite web|url=https://earthquake.usgs.gov/earthquakes/eqinthenews/2011/nm022811a/#details|title=Magnitude 4.7 – Arkansas|work=usgs.gov}}</ref>

==Cause==
It has been suggested that the swarm was triggered by drilling activities associated with the exploration and production of [[shale gas]] in the [[Fayetteville Shale]] in northern Arkansas. Analysis of the swarm has found no link between this relatively shallow drilling and the earthquakes, but has instead suggested a link with deep waste [[injection well|disposal drilling]] similar to that identified at the [[Rocky Mountain Arsenal]] in the 1960s, and has led to a moratorium on such drilling being proposed covering an area of {{convert|1150|mi2|comma=off|-1}}.<ref name="Short">{{cite news|url=http://www.thesuntimes.com/features/x438671110/Permanent-injection-well-moratorium-proposed|title=Permanent injection well moratorium proposed|last=Short|first=Louis|date=June 24, 2011|work=The Sun Times|access-date=3 July 2011|url-status=dead|archive-url=https://web.archive.org/web/20110630081046/http://www.thesuntimes.com/features/x438671110/Permanent-injection-well-moratorium-proposed|archive-date=30 June 2011}}</ref>

==See also==
*[[List of earthquakes in 2010]]
*[[List of earthquakes in 2011]]
*[[List of earthquakes in the United States]]
*[[Enola earthquake swarm]]
*[[Oklahoma earthquake swarms (2009–present)]]


==References==
==References==
{{Reflist}}
{{Reflist}}
{{Earthquakes in the United States}}

{{coord|35.28|-92.36|type:event_region:US-AR|display=title}}


{{DEFAULTSORT:Guy-Greenbrier earthquake swarm}}
[[Category:Earthquake swarms]]
[[Category:Earthquakes in the United States]]
[[Category:Natural disasters in Arkansas]]
[[Category:2010 earthquakes]]
[[Category:2011 earthquakes]]


{{earthquake-stub}}
{{US-earthquake-stub}}

Latest revision as of 15:51, 27 October 2024

Guy–Greenbrier earthquake swarm
Map of earthquakes in Arkansas
Map of earthquake epicenters for the period August 6, 2010 to March 1, 2011
UTC time??
ISC eventn/a
USGS-ANSSn/a
Local date2010–11
DurationLess than one year
TypeIntraplate earthquakes
Areas affectedCentral Arkansas
4.7 Mw
Total events150–160 earthquakes[1]

The Guy–Greenbrier earthquake swarm occurred in central Arkansas beginning in August 2010.[2] The epicenters of earthquakes in the swarm showed a linear distribution, with a clear overall shift in activity towards the southwest with time,[3] and the largest event in the swarm was the 2011 Arkansas earthquake, at 4.7 on the moment magnitude scale.[3]

Cause

[edit]

It has been suggested that the swarm was triggered by drilling activities associated with the exploration and production of shale gas in the Fayetteville Shale in northern Arkansas. Analysis of the swarm has found no link between this relatively shallow drilling and the earthquakes, but has instead suggested a link with deep waste disposal drilling similar to that identified at the Rocky Mountain Arsenal in the 1960s, and has led to a moratorium on such drilling being proposed covering an area of 1150 square miles (2980 km2).[4]

See also

[edit]

References

[edit]
  1. ^ Peterson, Mark D.; Mueller, Charles S.; Moschetti, Morgan P.; Hoover, Susan M.; Rubinstein, Justin L.; Llenos, Andrea L.; Michael, Andrew J.; Ellsworth, William L.; McGarr, Arthur F.; Holland, Austin A.; Anderson, John G. (April 23, 2015). Incorporating Induced Seismicity in the 2014 United States National Seismic Hazard Model—Results of 2014 Workshop and Sensitivity Studies (USGS Open-File Report 2015–1070) (PDF) (Report). United States Geological Survey. p. 13. doi:10.3133/ofr20151070. ISSN 2331-1258. OCLC 38116130. Retrieved April 23, 2015.
  2. ^ "CERI – Public Awareness –". Archived from the original on 2011-03-07. Retrieved 2011-03-22.
  3. ^ a b "Magnitude 4.7 – Arkansas". usgs.gov.
  4. ^ Short, Louis (June 24, 2011). "Permanent injection well moratorium proposed". The Sun Times. Archived from the original on 30 June 2011. Retrieved 3 July 2011.

35°17′N 92°22′W / 35.28°N 92.36°W / 35.28; -92.36