The August 30, 2013 M 7.0 earthquake in the southeast of Adak, Alaska, occurred as the result of thrust faulting on or near the subduction zone interface between the Pacific plate and North America plate.
At the location of this event, the Pacific plate moves towards the northwest with respect to North America at the rate of approximately 73 mm/yr, beginning its descent into the mantle at the Aleutian trench approximately 130 km south of the August 30 earthquake. The depth and mechanism of this earthquake are consistent with the megathrust interface occurring along between these two plates.
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