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HYBRID EMPIRICAL GROUND-MOTION PREDICTION EQUATIONS FOR EASTERN NORTH AMERICA USING NGA MODELS AND UPDATED SEISMOLOGICAL PARAMETERS (2011)
In the field of earthquake engineering, ground-motion prediction models are frequently used to estimate the peak ground acceleration (PGA) and the pseudospectral acceleration (PSA). In regions of the world where ground-motion recordings are plentiful, such as western North America (WNA), the ground-motion prediction equations are obtained using empirical methods. In other regions, such as eastern North America (ENA), with insufficient ground motion data, alternative methods must be used to develop ground-motion prediction equations (GMPEs). The hybrid empirical method is one such method used to develop ground-motion prediction equations in areas with sparse ground motions. This method employs the stochastic simulation method to adjust empirical GMPEs developed for a region with abundant strong motion recordings in order to estimate strong-motion parameters in a region with a sparse database. The adjustments take into account differences in the earthquake source, wave propagation, and site response characteristics between the two regions.
Reference:
Bulletin of the Seismological Society of America, Vol. 101, No. 4, pp. 1859–1870, August 2011
Bulletin of the Seismological Society of America, Vol. 101, No. 4, pp. 1859–1870, August 2011
Organization:
Department of Civil Engineering The University of Memphis Memphis, Tennessee
USA
Department of Civil Engineering The University of Memphis Memphis, Tennessee
USA
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