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U.S. Department of Energy
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Seismic hazard methodology for the central and eastern United States. Volume 6. Tectonic interpretations by Dames and Moore. Final report

Technical Report ·
OSTI ID:5573074
A tectonic framework is established for the eastern United States identifying those tectonic elements, zones or groups of geologic structures that have some finite probability of generating a moderate to large earthquake, given the current state of stress in the lithosphere. These tectonic features are evaluated, through the use of an extensive geological, geophysical and seismological data base compiled by EPRI, against a set of criteria to assign marginal probabilities that the tectonic elements are associated with the observed seismicity in the historical and instrumental catalog. The tectonic features are identified as feature-specific seismic sources or aggregated into regional seismic sources and their interdependencies with one another are evaluated. Seismicity parameters, including recurrence rates and maximum magnitudes and their distributions, are identified for each seismic source. These data are provided as input to a seismic hazard model (developed under separate contract) to calculate annual probabilities of exceedance of ground motion amplitudes at nine test sites during future earthquakes.
Research Organization:
Dames and Moore, Cranford, NJ (USA)
OSTI ID:
5573074
Report Number(s):
EPRI-NP-4726-Vol.6; ON: TI86920379
Country of Publication:
United States
Language:
English