Ground‐Motion Models for Very‐Hard‐Rock Sites in Eastern North America: An Update

Research Article| February 21, 2018 Ground‐Motion Models for Very‐Hard‐Rock Sites in Eastern North America: An Update David M. Boore David M. Boore aU.S. Geological Survey, 345 Middlefield Road, Mail Stop 977, Menlo Park, California 94025 U.S.A., boore@usgs.gov Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2018) 89 (3): 1172–1184. https://doi.org/10.1785/0220170218 Article history first online: 21 Feb 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation David M. Boore; Ground‐Motion Models for Very‐Hard‐Rock Sites in Eastern North America: An Update. Seismological Research Letters 2018;; 89 (3): 1172–1184. doi: https://doi.org/10.1785/0220170218 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 The ground‐motion models provided by me to the Next Generation Attenuation‐East (NGA‐East) project in 2015 have been updated by considering three additional Fourier spectra attenuation models and by conducting a mixed‐effect analysis of the residuals between the ground‐motion intensity measures computed from the attenuation models and the data from nine relatively well‐recorded events in eastern North America. On the basis of the period trends of the bias in the residuals and the distance trends of the residuals, I recommend the ground‐motion models developed for these attenuation models, with equal weights: the BCA10D model with 1/R geometrical spreading at all distances, and two modifications of the Atkinson and Boore (2014; referred as AB14) model, with 1/R spreading within 10 km, 1/R1.3spreading from 10 to 50 km, and 1/R spreading beyond 50 km. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.