Document: NUREG-0800
Document ID: 3a64837e-1633-463f-a4a7-e8657d177b48
Document Type: srp
Title: PROBABLE MAXIMUM TSUNAMI HAZARDS
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0701/ML070160659.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.4.6
CFR Part: 
CFR Title: 

Content:
nd (c) the importance of the safety functions to be performed. 2.4.6-2 Revision 3 -March 2007 1. Historical Tsunami Data. The staff reviews historical tsunami data, including paleotsunami mappings and interpretations, regional records and eyewitness reports, and more recently available tide gauge and real-time bottom pressure gauge data. 2. Probable Maximum Tsunami. The staff reviews the probable maximum tsunami1 (PMT) that may pose hazards to the site. The staff also reviews tsunamigenic sources mechanisms, source parameters, propagation models, and near-shore inundation models. The staff’s review of PMT will include the following topics: A. Potential tsunamigenic sources, both near and far field B. Tsunamigenic source mechanisms including earthquakes, submarine and subaerial landslides, and volcanoes C. Characteristics of tsunamigenic sources i. Earthquake source parameters, including magnitude, focal depth, fault dimension and orientation, and displacement; volume and dynamics of landslides; volcanic explosions and resulting pyroclastic flows, caldera collapses and flank failures; etc. ii. Efficiency of tsunami generation iii. Maximum initial displacement of water surface D. Propagation of tsunami waves i. Propagation in deep waters (linear wave dynamics) ii. Propagation in shallow waters (nonlinear wave dynamics) 3. Tsunami Propagation Models A. The staff reviews tsunami wave propagation models and model parameters used to simulate the tsunami wave propagation from the source towards the site. B. The staff reviews input data, including bathymetry and topography data, used in tsunami wave propagation models. 2 Additional supporting information of prior DC rules may be found in DCD Tier 2 Section 14.3. 2.4.6-3 Revision 3 -March 2007 4. Wave Runup, Inundation, and Drawdown. The staff reviews extent and duration of wave runup during the inundation phase of the PMT event. 5. Hydrostatic and Hydrodynamic Forces. The staff reviews static and dynamic force metrics,