USGS, NOAA, FEMA
U.S. Geological Survey
Data Series 236
Probabilities of exceedance for selected tsunami wave heights
A, A wave height of 0.5 m is expected to be exceeded near the coast at 100-year recurrence rates and farther inland at the 500-year recurrence rate (Tsunami Pilot Study Working Group, 2006). B, A wave height of 4.0 m is likely to be exceeded in limited areas near the coast at 100-year recurrence rates, but quite extensively at a 500-year recurrence rate. C, A wave height of 6.5 m is not expected to be exceeded at 100-year recurrence rates. For the 500-year recurrence rate, the wave height of 6.5 m is expected to be exceeded but not as far inshore as the 4.0-m wave height.
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