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The Mineral, Virginia (USA), earthquake of 23 August 2011 occurred at 6–8 km depth within the allochthonous terranes of the Appalachian Piedmont Province, rupturing an ~N36°E striking reverse fault dipping ~50° southeast. This study used the Interstate Highway 64 seismic reflection profile acquired ~6 km southwest of the hypocenter to examine the structural setting of the earthquake. The profile shows that the 2011 earthquake and its aftershocks are almost entirely within the early Paleozoic Chopawamsic volcanic arc terrane, which is bounded by listric thrust faults dipping 30°–40° southeast that sole out into an ~2-km-thick, strongly reflective zone at 7–12 km...

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