Journal Article10.1785/GSSRL.68.1.128
Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work
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TL;DR: In this article, the authors provide tables for estimating random horizontal component peak acceleration and 5 percent damped pseudo-acceleration response spectra in terms of the natural, rather than common, logarithm of the ground-motion parameter.
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Abstract: In this paper we summarize our recently-published work on estimating horizontal response spectra and peak acceleration for shallow earthquakes in western North America. Although none of the sets of coefficients given here for the equations are new, for the convenience of the reader and in keeping with the style of this special issue, we provide tables for estimating random horizontal-component peak acceleration and 5 percent damped pseudo-acceleration response spectra in terms of the natural, rather than common, logarithm of the ground-motion parameter. The equations give ground motion in terms of moment magnitude, distance, and site conditions for strike-slip, reverse-slip, or unspecified faulting mechanisms. Site conditions are represented by the shear velocity averaged over the upper 30 m, and recommended values of average shear velocity are given for typical rock and soil sites and for site categories used in the National Earthquake Hazards Reduction Program's recommended seismic code provisions. In addition, we stipulate more restrictive ranges of magnitude and distance for the use of our equations than in our previous publications. Finally, we provide tables of input parameters that include a few corrections to site classifications and earthquake magnitude (the corrections made a small enough difference in the ground-motion predictions that we chose not to change the coefficients of the prediction equations).
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Citations
A spatio-temporal model for probabilistic seismic hazard zonation of Tehran
TL;DR: A probabilistic approach is proposed to aggregate the effects of time-dependent and time-independent sources on seismic hazard and results indicate an increase in peak ground acceleration (PGA) values toward the southeastern part of the study area and the PGA variations are mostly controlled by the shear wave velocities across the city.
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TL;DR: In this article, the authors compare two methods of seismic-intensity estimation from ground-motion records for the two recent strong earthquakes: the 1999 (M 7.1) Hector Mine, California, and the 1999( M 7.6) Chi-Chi, Taiwan.
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Frequency-Dependent P Wave Polarization and Its Subwavelength Near-Surface Depth Sensitivity
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Modeling the Joint Probability of Earthquake, Site, and Ground-Motion Parameters Using Bayesian Networks
TL;DR: Bayesian networks are used to model the joint-probability distribution of selected earthquake, site, and ground-motion parameters, providing a probabilistic representation of the independencies and dependencies between these variables.
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