C. J. Costantino

Thumbnail image of Description and Validation of the Stochastic Ground Motion Model report cover

Both the point- and finite-source stochastic ground motion models represent recent and promising developments in the quantification of strong ground motions for engineering design.

Thumbnail image of Technical Basis for Revision of Regulatory Guidance on Design Ground Motions: Development of Hazard- and Risk-consistent Seismic Spectra for Two Sites report cover

We develop recommendations for design spectra at two sites, one in the Mojave desert, California, and the second at Columbia, South Carolina. These sites were chosen because local, small earthquakes dominate the high frequencies (f⩾10 Hz), but large distant events dominate the low frequencies (f⩽1 Hz).

Thumbnail image of Technical Basis for Revision of Regulatory Guidance on Design Ground Motions: Hazard- and Risk-Consistent Ground Motion Spectra Guidelines report cover

Recommendations for seismic design ground motions for nuclear facilities require a consistency with both observed strong motion data and with seismological theory on the characteristics of strong shaking. Different recommendations are appropriate for various regions of the US, because both earthquake source characteristics differ and the earth's crustal properties vary with region.

Media Point of Contact

Amanda Oliver
amanda.oliver@usda.gov

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