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An Earthquake Occurred in the South Atlantic on November 25, 2013

2018-03-28  |   Editor : houguangbing  
Category : Events

The November 25, 2013 M 7.0 earthquake (06:27:33 UTC) southwest of the Falkland Islands in the South Atlantic Ocean occurred as the result of strike slip faulting, on either a left-lateral fault striking ENE-WSW, or a right-lateral structure striking NNW-SSE.

The location of the earthquake, near the ENE-WSW trending plate boundary between the South America and Scotia tectonic plates, suggests it is likely associated with left-lateral faulting along this margin. At the location of this earthquake, the Scotia plate moves ENE with respect to South America at the rate of approximately 9.5 mm/yr. The November 25, 06:27:33 earthquake was the largest of 5 M 5+ events that occurred in a similar area over an approximate 2-hour period, including a M 5.6 earthquake 24 seconds prior to the M 7.0 mainshock.

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