Document: NUREG-0800
Document ID: 64c331f4-7cf6-4155-b7d2-b0087a4254b8
Document Type: srp
Title: PROBABLE MAXIMUM TSUNAMI FLOODING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0520/ML052070246.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.6
CFR Part: 
CFR Title: 

Content:
REVIEW RESPONSIBILITIES Primary - Hydrologic & Geotechnical Engineering Branch (HGEB)Civil Engineering and Geosciences Branch (ECGB)1 Secondary - Geosciences Branch (GB)None2 I. AREAS OF REVIEW The geohydrological design basis of the plant (discussed in Regulatory Guide 1.59) is developed in this section of the safety analysis report (SAR) to determine the extent of plant protection required for tsunami flooding and drawdown (outlined in Regulatory Guide 1.102). The areas of review include the hydrologic characteristics of the maximum locally and distantly generated tsunami and the techniques, methodologies, and parameters, including the geoseismic parameters of the generators, used in the determination of the design basis tsunami. Hydrologic analysis techniques, (including tsunami formation, propagation and shoaling models,) and coincident water levels, (including astronomical tide, storm surges and waves,) are 3 reviewed. The Geosciences Branch (GB) as part of its secondary review responsibility will review geologic and seismic characteristics of potential tsunamic faults. Areas of review include earthquake magnitude, focal depth, source dimensions, fault orientation, and vertical displacement. GB will review the applicant's values of the parameters, discussed above, used to model tsunami. The values used may represent upper bounds of the parameters. If there is disagreement with the applicant's proposed values, GB will provide alternative values. GB will provide a written discussion of its review of the geologic and seismic characteristics of potential tsunami sources DRAFT Rev. 3 - April 1996 2.4.6-2 to be included in the SER input for this section.The review will encompass the geologic and seismic characteristics of potential tsunamic faults, including the earthquake magnitude, focal depth, source dimensions, fault orientation, and vertical displacement. The applicant's values for parameters used to model tsunami, which may represent the upper bounds of the