Document: NUREG-0800
Document ID: 2a85a6b1-fab4-418e-bf66-475bfd506245
Document Type: srp
Title: Operating Basis Earthquake.
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340591.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2.7
CFR Part: 
CFR Title: 

Content:
on of the SER includes (1) definitions of tectonic provinces; (2) evaluations of the capability of geologic structures in the region; (3) determinations of the SSE earthquake(s) and free-field 2.5.2-9 Rev. 2 - August 1989 response spectra based on evaluation of the potential earthquakes; (4) time history of strong ground motion, and (5) determinations of the OBE free- field response spectra. Staff reservations about any significant deficiency presented in the applicant's SAR are stated in sufficient detail to make clear the precise nature of the concern. The above evaluation determina- tions or redeterminations are made by the staff during both the construction permit (CP) and operating license (OL) phases of review. OL applications are reviewed for any new information developed subsequent to the CP safety evaluation report (SER). The review will also determine whether the CP recommendations have been implemented. A typical OL-stage summary finding for this section of the SER follows: In our review of the seismologic aspects of the plant site we have con- sidered pertinent information gathered since our initial seismologic review which was made in conjunction with the issuance of the Construc- tion Permit. This new information includes data gained from both site and near-site investigations as well as from a review of recently pub- lished literature. As a result of our recent review of the seismologic information, we have determined that our earlier conclusion regarding the safety of the plant from a seismological standpoint remains valid. These conclusions can be summarized as follows: 1. Seismologic information provided by the applicant and required by Appendix A to 10 CFR Part 100 provides an adequate basis to establish that no capable faults exist in the plant site area which would cause earthquakes to be centered there. 2. The response spectrum proposed for the safe shutdown earthquake is the appropriate free-field response spectrum in conformance with Appendix