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Full-Text Articles in Geophysics and Seismology
Long-Period Ground Motions In The Upper Mississippi Embayment From Finite-Fault, Finite-Difference Simulations, Kenneth A. Macpherson
Long-Period Ground Motions In The Upper Mississippi Embayment From Finite-Fault, Finite-Difference Simulations, Kenneth A. Macpherson
University of Kentucky Doctoral Dissertations
A 3D velocity model and 3D wave propagation code have been employed to simulate long-period ground motions in the upper Mississippi embayment. This region is exposed to seismic hazard in the form of large earthquakes in the New Madrid seismic zone and observational data are sparse, making simulation a valuable tool for predicting the effects of large events. These simulations were undertaken in order to estimate ground-motion characteristics and to investigate the influence of the 3D embayment structure and finite-fault mechanics. There are three primary fault zones in the New Madrid seismic zone, each of which was likely associated with …