Natural Hazards

, Volume 23, Issue 1, pp 1–28

Analysis of Factors Influencing Simulations of the 1993 Hokkaido Nansei-Oki and 1964 Alaska Tsunamis

  • Edward P. Myers
  • António M. Baptista

DOI: 10.1023/A:1008150210289

Cite this article as:
Myers, E.P. & Baptista, A.M. Natural Hazards (2001) 23: 1. doi:10.1023/A:1008150210289


The purpose of this paper is to examine factorsinfluencing numerical simulations of tsunamis, andtheir implications for hazard mitigation. We focus ona specific finite element hydrodynamic model, chosenfor its role in the systematic development ofinundation maps for regions threatened primarily byCascadia Subduction Zone (CSZ) tsunamis. However, inpart for generality and in part because of poorhistorical records for CSZ events, we discuss here theperformance of the model in the context of betterdocumented past events with epicenters locatedelsewhere: the July 12, 1993 Hokkaido Nansei-Oki andthe March 28, 1964 Alaska tsunamis. Our analysisincludes the influence of grid refinement,interactions between tides and tsunamis, artificialenergy loss, and numerical parameterization. We showthat while the ability exists to reproduce pastevents, limitations remain in the modeling processthat should be accounted for in translating modelingresults into information for tsunami mitigation andresponse.

finite element hydrodynamic model 1993 Hokkaido Nansei-Oki 1964 Alaska tsunami 

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Edward P. Myers
    • 1
  • António M. Baptista
    • 1
  1. 1.Center for Coastal and Land-Margin Research, Department of Environmental Science and EngineeringOregon Graduate Institute of Science & TechnologyPortlandU.S.A

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