Finite-Fault Simulation of Broadband Strong Ground Motion from the 2010 Mw 7.0 Haiti Earthquake

Abstract

Research Article| October 01, 2013 Finite‐Fault Simulation of Broadband Strong Ground Motion from the 2010 Mw 7.0 Haiti Earthquake George P. Mavroeidis; George P. Mavroeidis Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, Indiana [e-mail] Search for other works by this author on: GSW Google Scholar Christopher M. Scotti Christopher M. Scotti Fay, Spofford, and Thorndike Engineers, Inc., 534 Broadhollow Road, Melville, New York 11747 Search for other works by this author on: GSW Google Scholar Author and Article Information George P. Mavroeidis Department of Civil and Environmental Engineering and Earth Sciences, University of Notre Dame, 156 Fitzpatrick Hall, Notre Dame, Indiana [e-mail] Christopher M. Scotti Fay, Spofford, and Thorndike Engineers, Inc., 534 Broadhollow Road, Melville, New York 11747 Publisher: Seismological Society of America First Online: 14 Jul 2017 Online ISSN: 1943-3573 Print ISSN: 0037-1106 Bulletin of the Seismological Society of America (2013) 103 (5): 2557–2576. https://doi.org/10.1785/0120120212 Article history First Online: 14 Jul 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation George P. Mavroeidis, Christopher M. Scotti; Finite‐Fault Simulation of Broadband Strong Ground Motion from the 2010 Mw 7.0 Haiti Earthquake. Bulletin of the Seismological Society of America 2013;; 103 (5): 2557–2576. doi: https://doi.org/10.1785/0120120212 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 Because of the socioeconomic environment in the small island nation of Haiti, no seismic recording stations were operating in the source region at the time of the 2010 Mw 7.0 earthquake. The lack of strong motion instruments has hindered the estimation of the amplitude, duration, and frequency content of the ground shaking caused by the seismic event. In this study, synthetic broadband strong ground motions are generated in the vicinity of the 2010 Haiti earthquake. The low‐frequency components of the synthetic motions are simulated using a slip model compatible with seismological observations, geologic field data, and space geodetic measurements. The computations are carried out using the discrete wavenumber representation method and the generalized transmission and reflection coefficient technique. The high‐frequency ground‐motion components are generated using the stochastic modeling approach and the specific barrier model. The two independently derived ground‐motion components are subsequently combined using matched filtering at a crossover frequency of 1 Hz to generate broadband ground‐motion time histories and response spectra for the city of Port‐au‐Prince and other sites in the vicinity of the earthquake. Finally, the synthetic strong ground motions are compared against peak ground‐motion estimates inferred from the U.S. Geologic Survey ShakeMap of peak ground accelerations, ground‐motion prediction equations, and observed structural damage. The synthetic time histories and response spectra generated in this study should be seen as plausible, but not necessarily unique, ground motions that capture the primary features of the 2010 Haiti earthquake. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.