The Use of Surface Faults for Estimating Design Earthquakes; Implications of the 28 October 1983 Idaho Earthquake

Abstract

Research Article| August 01, 1986 The Use of Surface Faults for Estimating Design Earthquakes; Implications of the 28 October 1983 Idaho Earthquake KEVIN J. FREEMAN; KEVIN J. FREEMAN Associate The Earth Technology Corporation, 200 W. Mercer St., Seattle, WA 98119 Search for other works by this author on: GSW Google Scholar STEVE FULLER; STEVE FULLER Project Geologist The Earth Technology Corporation, 200 W. Mercer St., Seattle, WA 98119 Search for other works by this author on: GSW Google Scholar BRUCE A. SCHELL BRUCE A. SCHELL Senior Geologist The Earth Technology Corporation, 3777 Long Beach Blvd., Long Beach, CA 90807 Search for other works by this author on: GSW Google Scholar Author and Article Information KEVIN J. FREEMAN Associate The Earth Technology Corporation, 200 W. Mercer St., Seattle, WA 98119 STEVE FULLER Project Geologist The Earth Technology Corporation, 200 W. Mercer St., Seattle, WA 98119 BRUCE A. SCHELL Senior Geologist The Earth Technology Corporation, 3777 Long Beach Blvd., Long Beach, CA 90807 Publisher: Association of Environmental & Engineering Geologists First Online: 02 Mar 2017 Online Issn: 1558-9161 Print Issn: 1078-7275 © 1986 Association of Engineering Geologists Environmental & Engineering Geoscience (1986) xxiii (3): 325–332. https://doi.org/10.2113/gseegeosci.xxiii.3.325 Article history First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation KEVIN J. FREEMAN, STEVE FULLER, BRUCE A. SCHELL; The Use of Surface Faults for Estimating Design Earthquakes; Implications of the 28 October 1983 Idaho Earthquake. Environmental & Engineering Geoscience 1986;; xxiii (3): 325–332. doi: https://doi.org/10.2113/gseegeosci.xxiii.3.325 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 SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract Comparison of surface ruptures of the 28 October 1983 Idaho earthquake to other historic surface ruptures such as the 1915 Pleasant Valley and 1954 Fairview Peak, Nevada earthquakes shows that maximum earthquake estimates for seismic design based on surface rupture can be misleading. Surface ruptures associated with these earthquakes are in a variety of geologic media ranging from valley alluvium to colluvium to bedrock, and occur at various positions relative to mountain fronts, all along the same rupture segments. Ruptures occurred both as continuous, interconnected segments and as discrete separated segments. Such characteristics indicate several pitfalls in the use of empirical fault-length data to estimate earthquake magnitudes for seismic-design purposes. The common practice of using well-defined surface fault segments instead of the entire length of the fault zone or fault system for estimating maximum earthquakes can lead to underestimating earthquake potential. 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.