Correlation of Response Spectral Values for Multi-Component Ground Motions

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Date Published: 
February 2006

Ground-motion prediction (attenuation) models predict the probability distributions of spectral acceleration values for a specified earthquake event. These models provide only marginal distributions, however; they do not specify correlations among spectral accelerations with differing periods or orientations. In this article a large number of strong ground motions are used to empirically estimate these correlations, and nonlinear regression is used to develop approximate analytical equations for their evaluation.

Reference Information: 

Baker J.W. and Cornell C.A., 2006, Correlation of response spectral values for multi-component ground motions: Bulletin of the Seismological Society of America, v. 96, p. 215-227.

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Appendix I

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