A Method for Including Path Effects in Ground-Motion Prediction Equations: An Example Using the Mw 9.0 Tohoku Earthquake Aftershocks

Abstract

Research Article| May 01, 2013 A Method for Including Path Effects in Ground‐Motion Prediction Equations: An Example Using the Mw 9.0 Tohoku Earthquake Aftershocks Haitham M. Dawood; Haitham M. Dawood The Charles Edward Via, , Jr. Department of Civil and Environmental Engineering, Virginia Tech, 200 Patton Hall, Blacksburg, Virginia 24061hdawood@vt.edu Search for other works by this author on: GSW Google Scholar Adrian Rodriguez‐Marek Adrian Rodriguez‐Marek The Charles Edward Via, , Jr. Department of Civil and Environmental Engineering, Virginia Tech, 200 Patton Hall, Blacksburg, Virginia 24061hdawood@vt.edu Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2013) 103 (2B): 1360–1372. https://doi.org/10.1785/0120120125 Article history first online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Haitham M. Dawood, Adrian Rodriguez‐Marek; A Method for Including Path Effects in Ground‐Motion Prediction Equations: An Example Using the Mw 9.0 Tohoku Earthquake Aftershocks. Bulletin of the Seismological Society of America 2013;; 103 (2B): 1360–1372. doi: https://doi.org/10.1785/0120120125 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 SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Past studies in tectonic regions dominated by subduction zones that result in the creation of volcanic belts, such as New Zealand and Japan, have pointed to higher attenuation rates across the volcanic regions. This study uses the downhole motions recorded at KiK‐net stations from 117 aftershocks that hit Japan after the great Mw 9.0 Tohoku earthquake to quantify region‐dependent strong‐motion attenuation rates. To this end, an approach to include path effects in the development of ground‐motion prediction equations (GMPEs) is presented. In this approach, regional path terms are constrained using the strong‐motion data. The constraint on path terms also makes this methodology suitable for the development of GMPEs that permit the removal of the ergodic assumption on path. The analysis results indicate the viability of the proposed methodology for constraining regional path terms and provide an estimate of single‐station, single‐path standard deviations. In addition, results confirm that the attenuation rate in volcanic regions is significantly higher than in nonvolcanic regions. Finally, a moderate correlation coefficient was found between the attenuation rate for weak and strong ground motions. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.