GK17 Ground‐Motion Prediction Equation for Horizontal PGA and 5% Damped PSA from Shallow Crustal Continental Earthquakes

Research Article| December 12, 2017 GK17 Ground‐Motion Prediction Equation for Horizontal PGA and 5% Damped PSA from Shallow Crustal Continental Earthquakes Vladimir Graizer Vladimir Graizer aU.S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Washington, D.C. 20555‐0001, Vladimir.Graizer@nrc.gov Search for other works by this author on: GSW Google Scholar Author and Article Information Vladimir Graizer aU.S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Washington, D.C. 20555‐0001, Vladimir.Graizer@nrc.gov Publisher: Seismological Society of America First Online: 12 Dec 2017 Online Issn: 1943-3573 Print Issn: 0037-1106 © Seismological Society of America Bulletin of the Seismological Society of America (2018) 108 (1): 380–398. https://doi.org/10.1785/0120170158 Article history First Online: 12 Dec 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Vladimir Graizer; GK17 Ground‐Motion Prediction Equation for Horizontal PGA and 5% Damped PSA from Shallow Crustal Continental Earthquakes. Bulletin of the Seismological Society of America 2017;; 108 (1): 380–398. doi: https://doi.org/10.1785/0120170158 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 We used an expanded Pacific Earthquake Engineering Research Center (PEER) Next Generation Attenuation Phase 2 (NGA‐West2) ground‐motion database developed from shallow crustal earthquakes in active tectonic regions to develop a ground‐motion prediction equation (GMPE) for the average (RotD50) horizontal components of peak ground acceleration (PGA) and 5% damped elastic pseudoabsolute acceleration (PSA) response spectral ordinates at periods from 0.01 to 10 s range. There are a number of significant changes in the current GK17 model relative to the previous GK15 (Graizer and Kalkan, 2016), such as improved magnitude scaling for M≤5.5⁠, a bilinear attenuation slope reflecting attenuation of shear and surface waves, a different shallow site‐response term and sediment thickness term (basin effect), different style‐of‐fault correction, and different approach and estimation of apparent (intrinsic and scattering) attenuation of response spectral accelerations (SAs). The estimates of apparent attenuation factor QSA(f)=120f0.96 demonstrate a difference between classical seismological Q(f) and the SA QSA(f) quality factors. The new GMPE is applicable for earthquakes with 4.0≤M≤8.5⁠, at rupture distances of 0≤Rrup≤400 km⁠, at sites having VS30 in the 150 to 1500 m/s range, and for spectral periods (⁠T⁠) of 0.01–10 s. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.