Document: NUREG-0800
Document ID: 9a241f0f-0a6b-4868-8e0c-4105d22a8e58
Document Type: srp
Title: VIBRATORY GROUND MOTION
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1230/ML12301A010.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 seismic ground motion hazards Secondary - None I. AREAS OF REVIEW Chapter 2 of the Standard Review Plan (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), 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 spectra (GMRS), and eventually the Safe Shutdown Earthquake (SSE) ground motion for the site. The staff reviews information presented by the applicant for a design certification (DC) to determine if the site parameters postulated for the design, with respect to seismic ground motion, are correctly identified, are representative of a reasonable number of sites that has 2.5.2-2 Draft Revision 5 – August 2013 been or may be considered for a COL application, and are appropriately justified. This SRP section applies to reviews performed for each of these types of applications. The site-specific GMRS are defined as the free-field horizontal and vertical ground motion response spectra at the plant site determined on the ground surface or on the uppermost competent material using performance-based response procedures in accordance with Regulatory Guide (RG) 1.208, “A Performance-Based Approach to Define the Site-Specific Earthquake Ground Motion.” The GMRS represent the ground motion levels at the site based on the analyses of regional and local seismic sources surrounding the site as well estimates of ground motions from these seismic sources. 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