Shear-wave velocity structure and attenuation derived from aftershock data of the 2011 Mineral, Virginia, earthquake
Published:January 01, 2015
Jennifer Dreiling, Walter D. Mooney, 2015. "Shear-wave velocity structure and attenuation derived from aftershock data of the 2011 Mineral, Virginia, earthquake", The 2011 Mineral, Virginia, Earthquake, and Its Significance for Seismic Hazards in Eastern North America, J. Wright Horton, Jr., Martin C. Chapman, Russell A. Green
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A dense seismic array was deployed at a 2 km spacing to record the aftershocks of the Mw (moment magnitude) 5.8 Mineral, Virginia (USA), earthquake in 2011. The three-component seismometers, installed on a 60-km-long profile, recorded 40 aftershocks over 9 days of deployment. Based on manual picking of P-wave (primary, compressional) and S-wave (secondary, shear) arrival times of 15 aftershocks, we find that the P-wave propagates with a velocity of 6.15 km/s through the upper crust, and the direct S-wave travels with a velocity of 3.66 km/s within the first 20 km (Vs<20km) and decreases slightly to...