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Tsunami Warning and Preparedness An Assessment of the U.S. Tsunami Program and the Nation's Preparedness Efforts (2011) / Chapter Skim
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Appendix I: Samoa Tsunami
Pages 259-262

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From page 259...
... In addition, even with a warning message reaching the public prior to wave arrival time, pre-event education would still be required to ensure proper protective action in such a short amount of time. At 8:05 AM HST on Tuesday, September 29, 2009 the first alert message was issued from the PTWC to the Hawaiian Civil Defense Authority.
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From page 260...
... Figure I.1.eps bitmap TABLE I.1 Timeline for Key Events During Samoa Tsunami Arrival time (HR:MIN:SEC) received by USGS QDDS Elapsed time system (HR:MIN:SEC)
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From page 261...
... While these waves are not expected to cause any significant coastal flooding they can produce small changes of sea level at the coast and strong or unusual currents that can be hazardous to swimmers."2 REFERENCES 1. National Oceanic and Atmospheric Administration.
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Key Terms

  • warning center
  • tsunami watch
  • gauge stations
  • pacific tsunami
  • tsunami wave

  • sea level
  • tsunami message
  • tsunami advisory
  • estimated time
  • additional gauge

  • message states
  • level change
  • stronger currents
  • civil defense
  • center tsunami

  • message declared
  • arrival time
  • wave activity
  • samoa tsunami
  • hawaiian civil

  • alert message
  • hawaiian islands
  • public prior
  • announcement issued
  • message included

  • shaking abates
  • tsunami messages
  • usgs qdds
  • reach hawaii
  • major tsunami


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