Assessment of Potential Tsunami Impact for Pearl Harbor, Hawaii   [open pdf - 9MB]

"It is proposed that the NOAA [National Oceanic and Atmospheric Administration}/ Pacific Region Center facility (including the Pacific Tsunami Warning Center) be moved to a new site at Ford Island that is located inside Pearl Harbor, Hawaii on the Island of Oahu. One issue to consider in evaluating the new site is the likelihood of tsunami inundation To address this issue, the NOAA/ PMEL[Pacific Marine Environment Laboratory]/Center for Tsunami Research has carried out a detailed tsunami modeling study for the Oahu area. The study focused on the distant tsunami hazard because historical data do not reflect a local tsunami hazard over the expected life of the NOAA building (GO years). This study was based on available information on past distant tsunamis striking Pearl Harbor, as well as a scenario of distant tsunamis from the major subduction zone sources throughout the Pacific region. The tsunami model used the best available data on water depths and land elevations, including any recent changes in either. This was necessary because the behavior of tsunamis can be very sensitive to even small variations of the water depths nearshore, the location of the shoreline, and the land elevations within any possible inundation zones. The numerical tsunami inundation model used in the study has been thoroughly validated and is the basis for the new U.S. tsunami forecast system being implemented at the NOAA Tsunami Warning Centers. The results of the study show that none of the tsunamis observed in the past nor any of the 18 modeled scenario events- based on great subduction zone earthquakes- have caused inundation at the NOAA building site."

Report Number:
NOAA Technical Memorandum OAR PMEL- 131
Public Domain
Retrieved From:
NOAA Center for Tsunami Research: http://nctr.pmel.noaa.gov/
Media Type:
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