Document: NUREG-0800
Document ID: 74980693-f1d2-4f59-a418-b297e1cc6509
Document Type: srp
Title: SURFACE FAULTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0707/ML070730597.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.3
CFR Part: 
CFR Title: 

Content:
h respect to fault geometry. Applicants and licensees are encouraged to evaluate the relationship of fault parameters to earthquake magnitude. These parameters should include fault geometry (including fault orientation, length, and width), fault type, slip rate, recurrence intervals, and rupture area. 4. Ages of Most Recent Deformation. The reviewer evaluates ages of most recent deformation to determine if times of most recent activity have been reasonably estimated for tectonic features identified, and if there a sufficient technical basis exists for the age estimates. The reviewer determines whether geochronological methods used by the applicant are based on accepted procedures. In cases for which the applicant employs unusual or untested age-dating techniques, staff will require documentation of the techniques. Accuracy of all age-dating techniques used in the applicant's analysis should be carefully documented. Multiple samples should be tested, and more than one dating method applied to each horizon that is significant in estimating age of a paleoseismic event. To evaluate ages of most recent deformation, staff may require assistance of consultants or advisors with expertise in the specific age dating methods used by the applicant. 5. Relationship of Tectonic Structures in the Site Area to Regional Tectonic Structures. The reviewer evaluates relationships of tectonic structures within 8 km (5 mi) of the site (i.e., the site area) with regional tectonic structures by using a literature search to determine that the applicant's evaluation of the regional tectonic framework is consistent with that of recognized experts who have published technical reports on this topic in peer-reviewed literature. The reviewer confirms that conclusions reached by the 2.5.3-15 Revision 4 - March 2007 applicant are based on sound geologic principles and all available geologic and geophysical data. When special investigations are conducted to determine structural relationships between