Strong Ground Motion Attenuation Relationships for Subduction Zone Earthquakes

Abstract

Research Article| January 01, 1997 Strong Ground Motion Attenuation Relationships for Subduction Zone Earthquakes R.R. Youngs; R.R. Youngs Geomatrix Consultants 100 Pine St., l0th Floor San Francisco, CA 94111 (R.R.Y., S.-J.C.) Search for other works by this author on: GSW Google Scholar S.-J. Chiou; S.-J. Chiou Geomatrix Consultants 100 Pine St., l0th Floor San Francisco, CA 94111 (R.R.Y., S.-J.C.) Search for other works by this author on: GSW Google Scholar W.J. Silva; W.J. Silva Pacific Engineering and Analysis 311 Pomona St. El Cerrito, CA 94530 (W.J.S.) Search for other works by this author on: GSW Google Scholar J.R. Humphrey J.R. Humphrey Lahontan GeoScience Inc. 21380 Castle Peak Rd. Reno, NV 89511-7119 (J.R.H.) Search for other works by this author on: GSW Google Scholar Seismological Research Letters (1997) 68 (1): 58–73. https://doi.org/10.1785/gssrl.68.1.58 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 R.R. Youngs, S.-J. Chiou, W.J. Silva, J.R. Humphrey; Strong Ground Motion Attenuation Relationships for Subduction Zone Earthquakes. Seismological Research Letters 1997;; 68 (1): 58–73. doi: https://doi.org/10.1785/gssrl.68.1.58 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 We present attenuation relationships for peak ground acceleration and response spectral acceleration for subduction zone interface and intraslab earthquakes of moment magnitude M 5 and greater and for distances of 10 to 500 km. The relationships were developed by regression analysis using a random effects regression model that addresses criticism of earlier regression analyses of subduction zone earthquake motions. We find that the rate of attenuation of peak motions from subduction zone earthquakes is lower than that for shallow crustal earthquakes in active tectonic areas. This difference is significant primarily for very large earthquakes. The peak motions increase with earthquake depth and intraslab earthquakes produce peak motions that are about 50 percent larger than interface earthquakes. 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.