Next Generation Attenuation (NGA) Models
Use of the NGA models for any purpose is the sole responsibility of the user. Incorporation of directivity effects in the models is under development and not yet implemented.
Questions and review comments on the NGA models are welcome and can be addressed directly to the authors (copy to Dr. Yousef Bozorgnia of PEER, Email: Yousef@Berkeley.edu).
- – NGA GMPE Files - March 10, 2010 (ZIP file - 263 KB)
Boore-Atkinson NGA Report and Files - January 6, 2008
- - Boore-Atkinson NGA PEER Report - PDF file, 16.2 MB
- - ba_progs.zip - ZIP file - 832 KB
- - ba07_nga_gmpes_additional_files2.zip - ZIP file - 1.8 MB
Campbell-Bozorgnia NGA Report and Files - January 3, 2008
- - PEER_2007_02_Campbell_Bozorgnia.pdf - PDF file - 3.39 MB
- - CB08_SPREADSHEET2.zip - ZIP file - 1.4 MB
- - CB08_FORTRAN1.zip - ZIP file - 48 KB
Chiou-Youngs NGA Report and Files - September 15, 2008
- – Fortran program and examples - zip file - 184 KB
- – NGA Model for Average Horizontal Component of Peak Ground Motion and Response Spectra - PDF file - 3.7 MB
- – Chiou-Youngs NGA paper in Earthquake Spectra - PDF file - 44 KB
- – CY2008 v2.xls - Excel file - 73 KB
Idriss NGA Report– December 12, 2007
- - Idriss_NGA_Report_Jan_19_2007.pdf - PDF file - 3.1 MB
- - NGA_Vs450-900_Spec_imi_2007-3.xls - Excel file - 272 KB
Abrahamson-Silva NGA Report and Files - February 2, 2010
- – Abrahamson-Silva NGA paper in Earthquake Spectra - PDF file - 44 KB
- – asnga0707.f - Fortran Source file - 48 KB
- – AS08_NGA_errata.pdf - PDF file - 182 KB
NGA Flatfile Used for Development of NGA Models
- - NGA Flatfile Used for Development of NGA Models - Excel file - 10.6 MB
- - Documentation - Excel file - 112 KB
- - Documentation - PDF file - 176 KB