Document: NUREG-0800
Document ID: f689fb6d-4711-4972-b900-1b2001877b19
Document Type: srp
Title: TSUNAMI HAZARDS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1819/ML18190A200.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.6
CFR Part: 
CFR Title: 

Content:
s the actual physical, environmental and demographic features of a site. Site characteristics are specified in an early site permit or in a final safety analysis report for a combined license....” 6 An inundation map delineates the area of some ground surface that would be flooded by a particular flooding event. In the case of a nuclear power plant, such a map would be expected to depict the water surface elevations of flood waters in relation to various features of the reactor powerblock including any SSCs important to safety. 2.4.6-3 Revision 4 - September 2018 and extent of the PMF that might occur at a power plant site due to tsunamigenic sources; the staff should review these elements consistent with the review criteria described elsewhere in Section ll of this SRP. The scope of the staff’s review activities should include the following areas, as applicable, to confirm whether a tsunamigenic source is a flood-causing mechanism at a power reactor site. 1. Historical Tsunami Data. The staff reviews historical tsunami data, including geologic maps depicting paleo tsunami deposits, regional historical records (including reports of eyewitness accounts), and more recently available tide gauge and bottom pressure gauge data for seiche. 2. Tsunamigenic Sources. The staff reviews those tsunamigenic wave-generating sources that may pose a flooding hazard to the site. For those tsunamigenic sources identified, the staff also reviews the source’s wave-generating parameters, wave propagation models, and near-shore inundation models used to estimate the flood hazard. The staff also reviews the applicant’s justification of its tsunamigenic source and wave generating model. The staff’s review of licensee’s tsunami generating model will include the following topics: A. Potential tsunamigenic sources from both near field and far field B. Tsunamigenic source mechanisms including earthquakes that occur near or beneath the ocean, subaerial or submarine landslides, and