Geological-seismological evaluation of earthquake hazards at J. Strom Thurmond Dam. Final report

Seismic source zones have been developed for the Southeastern United States that are based on the geology and historic seismicity as active faults have not identified. A floating earthquake was assigned to each source zone and earthquake motions were attenuated to the J. Strom Thurmond Dam. The maximum credible earthquake at J. Strom Thurmond Dam is a far field intensity MM VII (M - 5.5) earthquake. Because of the low level of seismicity, an operating basis earthquake for the J. Strom Thurmond Dam is not specified but may be taken at the level of the maximum credible earthquake. The values for peak horizontal ground motions for a maximum credible earthquake at the J. Strom Thurmond Dam based on the Krinitzsky and Chang (1987) intensity curves are as follows. Earthquake, Geological-seismological, J. Strom Thurmond Dam.