An Overview of the NGA-Subduction Research Program
Date: 4/24/2019
Time: 10:45 AM
Room: Pine
This presentation provides an overview of the NGA-Sub, a large multidisciplinary community-based research program to develop a comprehensive ground-motion database and multiple ground-motion models (GMMs) for subduction events. In the NGA-Sub project, we developed a database of ground motions recorded in worldwide subduction events. The database includes the processed recordings and supporting source, path, and site metadata from Japan, Taiwan, the US Pacific Northwest, Alaska, Latin America (including Mexico, Peru and Chile), and New Zealand. The NGA-Sub database includes subduction events with moment magnitudes ranging from 4 to 9.1. The subduction events are classified as interface, intraslab, or outer-rise events. The NGA-Sub ground-motion database has over 213,000 component records. This is by far the largest ground motion database that we have ever developed in any NGA project. Pseudo-spectral acceleration as well as Fourier amplitude spectra for frequencies from 0.1 to 100 Hz have been included in the database. In NGA-Sub, using the empirical ground-motion database, five teams developed subduction GMMs. Following the tradition of previous NGA projects, the GMM modeling teams as well as database developers have had continuous technical interactions which resulted in much higher quality of the final products than each researcher could achieved individually.
Presenting Author: Yousef Bozorgnia
Authors
Yousef Bozorgnia yousef.bozorgnia@ucla.edu University of California, Los Angeles, Los Angeles, California, United States Presenting Author
Corresponding Author
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Norman Abrahamson abrahamson@berkeley.edu University of California, Berkeley, Berkeley, California, United States |
Sean K Ahdi sahdi@ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Timothy D Ancheta timothydancheta@gmail.com Risk Management Solutions, Portland, Oregon, United States |
Ralph J Archuleta ralph@eri.ucsb.edu University of California, Santa Barbara, Santa Barbara, California, United States |
Gail M Atkinson gmatkinson@aol.com Western University, London, Ontario, Canada |
David M Boore dboore@yahoo.com U.S. Geological Survey, Menlo Park, California, United States |
Kenneth W Campbell kcampbell@corelogic.com CoreLogic, Inc., Oakland, California, United States |
Brian S J Chiou brian_chiou@dot.ca.gov Caltrans, Sacramento, California, United States |
Victor Contreras vcontreras@ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Robert B Darragh bbalindavis@gmail.com Pacific Engineering and Analysis, El Cerrito, California, United States |
Nick Gregor nick@ngregor.com Gregor Consulting, Oakland, California, United States |
IM Idriss imidriss@aol.com University of California, Davis, Davis, California, United States |
Chen Ji ji@geol.ucsb.edu University of California, Santa Barbara, Santa Barbara, California, United States |
Ronnie Kamai rkamai@bgu.ac.il Ben-Gurion University, Negev, , Israel |
Tadahiro Kishida kishidapple@gmail.com Khalifa University, Abu Dhabi, , United Arab Emirates |
Nicolas M Kuehn kuehn@g.ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Harold Magistrale Harold.Magistrale@fmglobal.com FM Global, Norwood, Massachusetts, United States |
Silvia Mazzoni silviamazzoni@yahoo.com University of California, Los Angeles, Los Angeles, California, United States |
Grace A Parker graceaparker@gmail.com University of California, Los Angeles, Los Angeles, California, United States |
Hongjun Si shj@eri.u-tokyo.ac.jp University of Tokyo, Tokyo, , Japan |
Walter Silva pacificengineering@juno.com Pacific Engineering and Analysis, El Cerrito, California, United States |
Jonathan P Stewart jstewart@seas.ucla.edu University of California, Los Angeles, Los Angeles, California, United States |
Melanie Walling mwalling@geoengineers.com GeoEngineers, Inc., Seattle, Washington, United States |
Kathryn E Wooddell katie.wooddell@gmail.com Pacific Gas and Electric Company, San Francisco, California, United States |
Robert R Youngs bob.youngs@amec.com John Wood Group PLC, Oakland, California, United States |
An Overview of the NGA-Subduction Research Program
Category
Earthquake Ground Motions and Structural Response in Subduction Zones: A Focus on Cascadia