Evaluation of NGA‐West2 and Chinese Ground‐Motion Prediction Equations for Developing Seismic Hazard Maps of Mainland China

Research Article| September 04, 2018 Evaluation of NGA‐West2 and Chinese Ground‐Motion Prediction Equations for Developing Seismic Hazard Maps of Mainland China Donny T. Dangkua; Donny T. Dangkua aFM Global, Research Division, 1151 Boston‐Providence Turnpike, P. O. Box 9102, Norwood, Massachusetts 02062, Yufang.rong@fmglobal.com Search for other works by this author on: GSW Google Scholar Yufang Rong; Yufang Rong aFM Global, Research Division, 1151 Boston‐Providence Turnpike, P. O. Box 9102, Norwood, Massachusetts 02062, Yufang.rong@fmglobal.com Search for other works by this author on: GSW Google Scholar Harold Magistrale Harold Magistrale aFM Global, Research Division, 1151 Boston‐Providence Turnpike, P. O. Box 9102, Norwood, Massachusetts 02062, Yufang.rong@fmglobal.com Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2018) 108 (5A): 2422–2443. https://doi.org/10.1785/0120170186 Article history first online: 04 Sep 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Donny T. Dangkua, Yufang Rong, Harold Magistrale; Evaluation of NGA‐West2 and Chinese Ground‐Motion Prediction Equations for Developing Seismic Hazard Maps of Mainland China. Bulletin of the Seismological Society of America 2018;; 108 (5A): 2422–2443. doi: https://doi.org/10.1785/0120170186 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 Ground‐motion prediction equations (GMPEs) are important elements in seismic hazard assessments. Here, we evaluate GMPEs from the Next Generation Attenuation‐West2 (NGA‐West2) project to confirm the applicability of those GMPEs to the China region and to assign relative weighting for each GMPE for use in developing probabilistic seismic hazard maps. We also examine the GMPEs used to develop the 2015 seismic ground‐motion parameters zonation map of China; this set of GMPEs provides attenuation equations only for peak ground acceleration and velocity. We collect instrumental ground‐motion data from past earthquakes that occurred in and near China, mostly from Chinese journal articles and the NGA‐West2 project database. We compare the ground‐motion data with ground‐motion median curves of the GMPEs for various spectral accelerations and perform residual analysis with respect to magnitude and distance. The analysis results show that (1) for short ground‐motion periods, the NGA‐West2 relationships are generally consistent with the data and perform better than the GMPEs used to develop the 2015 seismic ground‐motion parameters zonation map of China, and (2) for long ground‐motion periods, the NGA‐West2 relationships predict higher ground motion than the observed data. We then quantitatively rank the GMPEs using a log‐likelihood (LLH) approach. Based on the LLH results, weights are assigned to the GMPEs to be applied in developing seismic hazard maps of China. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.