Document: NUREG-0800
Document ID: 12c2dd4f-bb36-4f73-8d7d-7eff5a91a10d
Document Type: srp
Title: VIBRATORY GROUND MOTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0529/ML052910327.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Civil Engineering and Geosciences Branch (ECGB) Secondary - None 1. AREAS OF REVIEW The Civil Engineering and Geosciences Branch review covers the seismological, geological, geophysical, and geotechnical investigations carried out to determine the Safe Shutdown Earthquake ground motion (SSE) for the site. The SSE represents the design earthquake ground motion at the site and is the vibratory ground motion for which certain structures, systems, and components are designed to remain functional. The SSE is based upon a detailed evaluation of earthquake potential, taking into account regional and local geology, Quaternary tectonics, seismicity, and specific geotechnical characteristics of the site's subsurface material. The SSE is defined as the free-field horizontal and vertical ground response spectra at the plant site. The principal regulation used by the staff in determining the scope and adequacy of the submitted seismologic and geologic information and attendant procedures and analyses is 10 CFR 100.23 (Ref. 1). Additional information (regulations, regulatory guides, and reports) is provided in References 2 through 9. Guidance on seismological and geological investigations is provided in Regulatory Guide 1.165, "Identification and Characterization of Seismic Sources and Determination of Safe Shutdown Earthquake Ground Motion" (Ref. 9). These investigations describe the seismicity of the site region and the correlation of earthquake activity with seismic sources. Seismic sources are Rev. 3 - March 1997 USNRC STANDARD REVIEW PLAN Standard review plans are prepared for the guidance of the Office of Nuclear Reactor Regulation staff responsible for the review of applicatIons lo construct and operate nuclear power plants. These documents are made available to the public as part of the Commission's policy to Inform the nuclear Industry and the general public of regulatory procedures and olicies. Standard review plans are not substitutes