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:
audit with the applicant to address any differences with the applicant’s findings. 1. Historically-Reported/Instrumentally-Recorded Tsunami Data. The staff reviews historically-reported information, including instrumental water-level gauge data, to determine the vulnerability of a proposed site to the occurrence of a tsunami wave. The staff should confirm whether there is historically-reported information and/or instrumentally-recorded data that may help in establishing the frequency of occurrence and other useful indicators such as the location(s) of maximum observed water height(s) of past tsunami events. The staff should review the application’s discussion of the available literature, to the extent it is available, regarding any paleo-tsunami studies for the area in question that might provide geologic information on past tsunami flood extents, frequencies, and elevations. The National Oceanic and Atmospheric Administration (NOAA) National Geophysical Data Center (NGDC) collects and archives information on tsunami sources and effects to support tsunami modeling and engineering. The NGDC database11 contains historical as well as paleo tsunami data. The staff should confirm that NGDC data, relevant to the proposed plant site, has been used to describe the history of tsunamis at the site. The staff should also confirm that paleo-tsunami data be included in this description. Other sources of historical data, especially international sources that are relevant for proposed plant sites exposed to far-field transoceanic tsunamis, should also be investigated.12 The staff reviews the historical and paleo tsunami data for their completeness and relevance to the proposed plant site. 2. Tsunamigenic Sources. The staff reviews the locations likely to generate the maximum tsunami wave at the site with respect to the source mechanisms, the characteristics of these source mechanisms, and the simulation of the wave propagating towards the proposed plant site. The staff should