Assessing Hypocentral Accuracy and Lower Magnitude Completeness in the Pacific Northwest Using Seismic Refraction Detonations and Cumulative Frequency-magnitude Relationships

Research Article| November 01, 2003 Assessing Hypocentral Accuracy and Lower Magnitude Completeness in the Pacific Northwest Using Seismic Refraction Detonations and Cumulative Frequency-magnitude Relationships Thomas M. Brocher; Thomas M. Brocher U.S. Geological Survey 345 Middlefield Road, MS 977 Menlo Park, CA 94025 brocher@usgs.gov (T.M.B.) Search for other works by this author on: GSW Google Scholar Craig S. Weaver; Craig S. Weaver U.S. Geological Survey Dept. of Earth and Space Sciences University of Washington 63 Johnson Hall Box 351310 Seattle, WA 98195 (C.S.W.) Search for other works by this author on: GSW Google Scholar Ruth S. Ludwin Ruth S. Ludwin Dept. of Earth and Space Sciences University of Washington Box 351310 Seattle, WA 98195 (R.S.L.) Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2003) 74 (6): 773–790. https://doi.org/10.1785/gssrl.74.6.773 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share MailTo Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation Thomas M. Brocher, Craig S. Weaver, Ruth S. Ludwin; Assessing Hypocentral Accuracy and Lower Magnitude Completeness in the Pacific Northwest Using Seismic Refraction Detonations and Cumulative Frequency-magnitude Relationships. Seismological Research Letters 2003;; 74 (6): 773–790. doi: https://doi.org/10.1785/gssrl.74.6.773 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 Absolute hypocentral location errors are traditionally estimated from the errors in the locations of quarry blasts. Catalog completeness has been evaluated by examining cumulative frequency-magnitude relationships (e.g.,Rydelek and Sacks, 1989). In the Pacific Northwest, however, the number of quarries with well defined blasting schedules is relatively sparse (e.g.,Benson et al., 1992). Seismic refraction detonations provide an independent assessment of actual location errors of surface events in the Pacific Northwest and elsewhere. Because the detonation yields are also known, their reported magnitudes can be used to investigate the detection and location thresholds for low-magnitude earthquakes.... You do not have access to this content, please speak to your institutional administrator if you feel you should have access.