Enola earthquake swarm explained

The Enola earthquake swarm was a series of earthquakes in 2001 that centered on Central Arkansas. It follows the earthquake swarms of Arkansas in the 1980s, and predates the Guy-Greenbrier earthquake swarm that started in 2010.[1] The earthquake sequence started with a 4.4 magnitude main shock and 2,500 earthquakes followed in the next 2 months.[2] These events resulted in a linear cumulative seismicity rate with a b value of nearly 1.0, which is an unusual result as compared to swarms other places.[3] The swarm created damage and in May 2001 the swarm increased activity with the notable 4.4 earthquake. The after shocks exceeding a magnitude of 2.0. These earthquakes have not been linked to the more well known New Madrid Seismic Zone. [4]

External links

Notes and References

  1. Web site: CERI - Public Awareness -. ceri.memphis.edu . https://web.archive.org/web/20110307140049/http://www.ceri.memphis.edu/GUY/ . March 7, 2011.
  2. Rabak . Ivan . Langston . Charles . Bodin . Paul . Horton . Steve . Withers . Mitch . Powell . Christine . The enola, Arkansas, intraplate swarm of 2001 . Seismological Research Letters . 1 May 2010 . 81 . 3 . 549–559 . 10.1785/gssrl.81.3.549 . 2010SeiRL..81..549R . May 23, 2024.
  3. Rabak . I. . Bodin . P. . Langston . C. . Horton . S. . Withers . M. . Langston . T. . The Enola, Arkansas, Sequence of 2001: a Recurring Earthquake Swarm in "Stable Continental" Crust? . AGU Fall Meeting Abstracts . 1 December 2002 . 2002 . S22D–05 . 2002AGUFM.S22D..05R .
  4. McFarland . John David . The May 2001 Faulkner County Earthquakes . Arkansas Geological Commission . 2001 . 1-5 . May 23, 2024.

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