Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work

Research Article| January 01, 1997 Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work David M. Boore; David M. Boore U.S. Geological Survey 345 Middlefield Road Menlo Park, California 94025 boore@samoa.wr.usgs.gov joyner@samoa.wr.usgs.govtfumal@isdmnl.wr.usgs.gov Search for other works by this author on: GSW Google Scholar William B. Joyner; William B. Joyner U.S. Geological Survey 345 Middlefield Road Menlo Park, California 94025 boore@samoa.wr.usgs.gov joyner@samoa.wr.usgs.govtfumal@isdmnl.wr.usgs.gov Search for other works by this author on: GSW Google Scholar Thomas E. Fumal Thomas E. Fumal U.S. Geological Survey 345 Middlefield Road Menlo Park, California 94025 boore@samoa.wr.usgs.gov joyner@samoa.wr.usgs.govtfumal@isdmnl.wr.usgs.gov Search for other works by this author on: GSW Google Scholar Seismological Research Letters (1997) 68 (1): 128–153. https://doi.org/10.1785/gssrl.68.1.128 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation David M. Boore, William B. Joyner, Thomas E. Fumal; Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work. Seismological Research Letters 1997;; 68 (1): 128–153. doi: https://doi.org/10.1785/gssrl.68.1.128 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySeismological Research Letters Search Advanced Search 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). This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.