Document: NUREG-0800
Document ID: 791dfc73-1a98-485f-a0c2-c02790f00284
Document Type: srp
Title: VIBRATORY GROUND MOTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730593.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Organization responsible for the review of seismological ground motion hazards Secondary - None I. AREAS OF REVIEW Chapter 2 of the SRP discusses the site characteristics that could affect the safe design and siting of the plant. The staff reviews information presented by the applicant for a construction permit (CP), operating license (OL), design certification (DC), early site permit (ESP), or combined license (COL) concerning the seismological, geological, geophysical, and geotechnical investigations carried out to determine the site-specific ground motion response spectrum (GMRS), and eventually the Safe Shutdown Earthquake ground motion (SSE) for the site. This SRP section applies to reviews performed for each of these types of applications. The GMRS is defined as the free-field horizontal and vertical ground motion response spectra at the plant site. The development of the GMRS is based upon a detailed evaluation of earthquake potential, taking into account the regional and local geology, Quaternary tectonics, seismicity, and site-specific geotechnical engineering characteristics of the site subsurface material. 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. The GMRS satisfy the requirements of 10 CFR 100.23 with respect to the 2.5.2-2 Revision 4 - March 2007 development of the SSE. Additional information (regulations, regulatory guides, and reports) is provided in References 2 through 9. The GMRS represents the first part of the development of the SSE for a site as a characterization of the regional and local seismic hazard. 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 must satisfy both 10 CFR 100.23 and the design requirements