The “Next Generation of Ground-Motion Attenuation Models” (NGA) project is a multidisciplinary research program coordinated by the Lifelines Program of the Pacific Earthquake Engineering Research Center (PEER), in partnership with the U.S. Geological Survey and the Southern California Earthquake Center. The objective of the project is to develop new ground-motion prediction relations through a comprehensive and highly interactive research program. Five sets of ground-motion models were developed by teams working independently but interacting with one another throughout the development process. The development of ground-motion models was supported by other project components, which included (1) developing an updated and expanded PEER database of recorded ground motions, including supporting information on the strong-motion record processing, earthquake sources, travel path, and recording station site conditions; (2) conducting supporting research projects to provide guidance on the selected functional forms of the ground-motion models; and (3) conducting a program of interactions throughout the development process to provide input and reviews from both the scientific research and engineering user communities. An overview of the NGA project components, process, and products is presented in this paper.
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February 01, 2008
An Overview of the NGA Project
Maurice Power, M.EERI;
Maurice Power, M.EERI
a)
Geomatrix Consultants, 2101 Webster St., 12th Floor, Oakland, CA 94612
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Brian Chiou, M.EERI;
Brian Chiou, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
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Norman Abrahamson, M.EERI;
Norman Abrahamson, M.EERI
c)
Pacific Gas & Electric Company, Geosciences Department, 245 Market St., Rm. 403, PO Box 770000, MC N4C, San Francisco, CA 94177
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Yousef Bozorgnia, M.EERI;
Yousef Bozorgnia, M.EERI
d)
Pacific Earthquake Engineering Research Center, University of California, 325 Davis Hall, MC1792, Berkeley, CA 94720
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Thomas Shantz, M.EERI;
Thomas Shantz, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
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Clifford Roblee, M.EERI
Clifford Roblee, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
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Maurice Power, M.EERI
a)
Geomatrix Consultants, 2101 Webster St., 12th Floor, Oakland, CA 94612
Brian Chiou, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
Norman Abrahamson, M.EERI
c)
Pacific Gas & Electric Company, Geosciences Department, 245 Market St., Rm. 403, PO Box 770000, MC N4C, San Francisco, CA 94177
Yousef Bozorgnia, M.EERI
d)
Pacific Earthquake Engineering Research Center, University of California, 325 Davis Hall, MC1792, Berkeley, CA 94720
Thomas Shantz, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
Clifford Roblee, M.EERI
b)
California Department of Transportation, Office of Infrastructure Research, 5900 Folsom Blvd, MS-5, Sacramento, CA 95819
Publisher: Earthquake Engineering Research Institute
Received:
02 Jul 2007
Accepted:
25 Jan 2008
First Online:
01 Jun 2020
Online ISSN: 1944-8201
Print ISSN: 8755-2930
© 2008 Earthquake Engineering Research Institute
Earthquake Engineering Research Institute
Earthquake Spectra (2008) 24 (1): 3–21.
Article history
Received:
02 Jul 2007
Accepted:
25 Jan 2008
First Online:
01 Jun 2020
Citation
Maurice Power, Brian Chiou, Norman Abrahamson, Yousef Bozorgnia, Thomas Shantz, Clifford Roblee; An Overview of the NGA Project. Earthquake Spectra 2008;; 24 (1): 3–21. doi: https://doi.org/10.1193/1.2894833
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Index Terms/Descriptors
- acceleration
- aftershocks
- Asia
- attenuation
- body waves
- Chi-chi earthquake 1999
- classification
- crust
- data bases
- data processing
- earthquakes
- elastic waves
- epicenters
- Far East
- faults
- focus
- ground motion
- intraplate processes
- magnitude
- models
- normal faults
- numerical models
- peak ground acceleration
- prediction
- reverse faults
- rupture
- S-waves
- scale factor
- seismic waves
- shallow-focus earthquakes
- spectra
- spectral analysis
- stress drops
- strike-slip faults
- strong motion
- Taiwan
- United States
- velocity
- wave amplification
- Western U.S.
- peak ground velocity
- NGA Project
Latitude & Longitude
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