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Next Generation Attenuation (NGA)

NEXT GENERATION ATTENUATION (NGA). [DSA-SS, DSA-SS/CC & OSHPD 1 & 4] Attenuation relations used for the 2008 United States Geological Survey (USGS) seismic hazards maps (for the Western United States) or their equivalent as determined by the enforcement agency.
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Related Code Sections

1803A.6 Soils and Foundations, Geohazard Reports
7. The three Next Generation Attenuation (NGA) relations used for the 2008 USGS seismic hazards maps for Western United States (WUS) shall ...
1803A.6 Soils and Foundations, Geohazard Reports
, and ASCE 7. The Next Generation Attenuation West 2 (NGA-West 2) relations used for the 2014 USGS seismic hazards maps for Western United States (WUS) shall ...
1803A.6 Soils and Foundations, Geohazard Reports
      The Next Generation Attenuation West 2 (NGA-West 2)relations used for the 2014 USGS seismic hazards maps for Western United States (WUS ...
Section 1803A Soils and Foundations, Geotechnical Investigations
parameters, as required by Sections 1613A and 1617A, and ASCE 7.       The Next Generation Attenuation West 2 (NGA ...