Document: NUREG-0800
Document ID: 00d3733d-7b45-4276-8765-54fc5ae522d6
Document Type: srp
Title: .3-3
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0423/ML042390212.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5
CFR Part: 
CFR Title: 

Content:
results to support those conclusions must be submitted to the staff for review. Subsection 2.5.3.2 Geological Evidence, or Absence of Evidence for Surface Deformation. This subsection is evaluated by first determining, through a literature search and comparison with the applicant's data, that all evidences of tectonic deformation such as fault offset identified in the literature have been considered in the investigation. The results of the applicant's site investigations are studied and cross-compared in detail to see if there is evidence of existing or possible displacements. If such evidence is found, additional investigations such as field mapping, geophysical investigations, borings, or trenching must be carried out to demonstrate that there is no offset or to define the characteristics of the fault if it does exist. It is important to distinguish between tectonically induced near-surface deformation and deformation caused by nontectonic phenomena such as growth faulting, collapse caused by the development of karst terrane, etc. (Ref. 3). Subsection 2.5.3.3 Correlation of Earthauakes with Capable Tectonic Sources. This subsection is reviewed in conjunction with the consideration of SRP Section 2.5.2. Historical earthquake data derived from the review of SRP Section 2.5.2 are compared with known local tectonic features and a determination is made as to whether any of these earthquakes can reasonably be associated with the local tectonic structures. This determination includes an evaluation of the hypocentral error estimates of the earthquakes. When available, the earthquake source mechanisms should be evaluated with respect to fault geometry. In addition, applicants and licensees are encouraged to evaluate the relationship of fault parameters to earthquake magnitude. These parameters may include, but are' not limited to, slip rate, recurrence intervals, length, rupture area, and fault type (Ref. 11). 2.5.3-7 Rev. 3 - March 1997 Subsection 2.5.3.4 Ages of Most