Ground Motions from Induced Earthquakes in Oklahoma and Kansas

Research Article| October 31, 2018 Ground Motions from Induced Earthquakes in Oklahoma and Kansas Morgan P. Moschetti; Morgan P. Moschetti aU.S. Geological Survey, Geologic Hazards Science Center, PO Box 25046, MS 966, Denver, Colorado 80225 U.S.A., mmoschetti@usgs.gov Search for other works by this author on: GSW Google Scholar Eric M. Thompson; Eric M. Thompson aU.S. Geological Survey, Geologic Hazards Science Center, PO Box 25046, MS 966, Denver, Colorado 80225 U.S.A., mmoschetti@usgs.gov Search for other works by this author on: GSW Google Scholar Peter M. Powers; Peter M. Powers aU.S. Geological Survey, Geologic Hazards Science Center, PO Box 25046, MS 966, Denver, Colorado 80225 U.S.A., mmoschetti@usgs.gov Search for other works by this author on: GSW Google Scholar Susan M. Hoover; Susan M. Hoover aU.S. Geological Survey, Geologic Hazards Science Center, PO Box 25046, MS 966, Denver, Colorado 80225 U.S.A., mmoschetti@usgs.gov Search for other works by this author on: GSW Google Scholar Daniel E. McNamara Daniel E. McNamara aU.S. Geological Survey, Geologic Hazards Science Center, PO Box 25046, MS 966, Denver, Colorado 80225 U.S.A., mmoschetti@usgs.gov Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2019) 90 (1): 160–170. https://doi.org/10.1785/0220180200 Article history first online: 31 Oct 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Morgan P. Moschetti, Eric M. Thompson, Peter M. Powers, Susan M. Hoover, Daniel E. McNamara; Ground Motions from Induced Earthquakes in Oklahoma and Kansas. Seismological Research Letters 2018;; 90 (1): 160–170. doi: https://doi.org/10.1785/0220180200 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 Improved predictions of earthquake ground motions are critical to advancing seismic hazard analyses and earthquake response. The high seismicity rate from 2009 to 2016 in Oklahoma and Kansas provides an extensive data set for examining the ground motions from these events. We evaluate the ability of three suites of ground‐motion prediction equations (GMPEs)—appropriate for modeling tectonic earthquakes in active crustal and stable continental regions—to reproduce the observed ground motions. Mixed‐effects regressions are used to separate the ground‐motion residuals into bias, between‐event, and within‐event terms. Although the residuals depict differing accuracies in the ability of the three GMPE suites to predict the ground motions, some consistent trends emerge in the period, magnitude, and distance dependence. The trends suggest that aspects of the ground motions from these induced earthquakes are not well modeled by current tectonic GMPEs. Most important, we find evidence for relatively poor overall fit to the ground motions, by all of the GMPE suites, at periods less than about 0.2 s and above 3 s, greater‐than‐predicted magnitude scaling for small to moderate‐magnitude events (⁠M≲5⁠), higher‐than‐predicted within‐event variability above 3 s, and an apparent geometric attenuation that is stronger than average predictions at close distances (⁠R≲20 km⁠) and short periods (⁠T≲1s⁠). Our results indicate that regionally appropriate GMPEs for induced earthquakes should be used for predicting ground motions in Oklahoma and Kansas. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.