Document: NUREG-0800
Document ID: f5ba9b07-c36e-4c99-a4af-50271ed55f35
Document Type: srp
Title: SURFACE FAULTING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0523/ML052340599.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.3
CFR Part: 
CFR Title: 

Content:
must be carried out to demonstrate that there is no offset or to define the charac- teristics of the fault if it does exist. Subsection 2.5.3.3 is reviewed in conjunction with the consideration of SRP Section 2.5.2.' Historic earthquake data derived from the review of SRP Section 2.5.2 are compared with known local tectonic features and a determina- tion is made as to whether any of these earthquakes can reasonably be associated with the local 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 addi- tion, applicants/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, and type of fault. Subsection 2.5.3.4 is evaluated to determine if the age dating methodology used by the applicant is based on accepted geological procedures. In some cases unusual age dating techniques may be used. When such methods are employed, the staff will require extensive documentation of the technique and may treat it as a generic review item. The resolution of all age dating tech- niques should be carefully documented. Subsection 2.5.3.5 is evaluated by determining through a literature search that the applicant's evaluation of the regional tectonic framework is consistent with that of recognized experts whose reports appear in the published literature. The conclusions reached by the applicant should be based on sound geologic principles and should explain the available geological and geophysical data. When special investigations are made to determine the structural relationship between faults which pass-within 5 miles of the site and regional faults, the 'resolution of the investigative techniques should be given. Subsection 2.5.3.6 is evaluated to determine if a sufficiently detailed investi-