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Center for Coastal & Land-Margin Research
Science for Society:
Impact of tsunamis on Oregon coastal communities
Maximum heights of tsunami waves
Different CSZ sea floor deformation scenarios may lead to very distinct tsunami waves. This is illustrated in the figures below, which show maps of maximum (over a 8 hour period) wave heights, for each of our four working scenarios.It is interesting to notice that all scenarios show concentration of energy in Central Oregon. This is a consequence of a combination of quite distinctive local topographic features: Heceta Valley, Perpetua Bank, and Stonewall Bank.
Also interesting is that the patterns of propagation in the Oregon/Washington border are qualitatively similar for the two scenarios where significant subsidence occurs offshore (Scenarios 1 and 2), both of which lead to large regions of energy concentarion. Scenarios 3 and 4 (where significant subsidence occurs only closer to the shore) do not show the same pattern, though.
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| Scale of wave heights, in meters | Map Scale, in kilometers |
