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:
akes within the site vicinity are evaluated with respect to accuracy of hypocenter location and source of origin, and if all capable tectonic sources that could, based on fault orientation and length, extend into the site area or site location are evaluated with respect to potential for causing surface deformation. The application should include a plot of earthquake epicenters superimposed on a map showing local capable tectonic sources. 4. Ages of Most Recent Deformation. Requirements of GDC 2 in Appendix A of 10 CFR Part 50, 10 CFR 52.17, and 10 CFR 100.23 are met for this area of review if every significant surface fault and feature associated with a blind fault, any part of which lies within the site area, is investigated in sufficient detail to demonstrate, or allow relatively accurate estimates of, age of most recent fault displacement and enable identification of geologic evidence for previous displacements (if such evidence exists). The application should also provide an evaluation of sensitivity and resolution of the exploratory geologic and geophysical techniques used that is adequate for staff to determine whether or not appropriate techniques were applied to assess age of the most recent displacement. 5. Relationship of Tectonic Structures in the Site Area to Regional Tectonic Structures. Requirements of GDC 2 in Appendix A of 10 CFR Part 50, 10 CFR 52.17, and 10 CFR 100.23 are satisfied for this area of review by discussion of structural and genetic relationships between site area faulting or other tectonic deformation and the regional tectonic framework. In regions of active tectonism, it may be necessary to conduct detailed geological and geophysical investigations for assessing possible relationships of site area faults to regional faults which are known to be seismically active. 6. Characterization of Capable Tectonic Sources. Requirements of GDC 2 in Appendix A of 10 CFR Part 50, 10 CFR 52.17, and 10 CFR 100.23 are met for this area of review when