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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 J: Response to the Chilean-Earthquake Generated Tsunami: The Hawaii Case Study
Pages 263-272

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From page 263...
... The message introduced a tsunami advisory, stated that the PTWC had issued an "expanding regional tsunami warning and watch for parts of the Pacific located closer to the earthquake" and advised that the earliest arrival of any tsunami wave would be 11:19 HST on February 27. Updated messages were released approximately every hour.
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From page 264...
... Figure J.1.eps gov/previous.events/Chile_02-27-10/Images/traveltime.jpg; West Coast/Alaska Tsunami Warning Center, NOAA. bitmap DECISIONS MADE IN HAWAII A statewide evacuation was not ordered; evacuation decisions were left to local counties.4 On September 27, the Oahu Emergency Management Department spokesman was quoted at 03:51 HST in the Honolulu Advertiser as saying, "If you live anywhere in the evacuation zone, you have to evacuate.
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From page 265...
... Tsunami arrives at Tsunami amplitude data transmitted to Tsunami warning Hawaii Civil Defense Hawaiian Islands Hawaii Civil Defense (0624HST) issued for Hawaii notified (2049HST)
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From page 268...
... Low-lying county facilities, including sewage treatment plants and wastewater pump facilities on Oahu and Maui, were closed, later resulting in sewage spills.7 Private boats and commercial and military vessels evacuated Hawaiian harbors for deeper water.4 Media sources and residents reported long lines at gas stations and at supermarkets where customers sought water, batteries, generators, and food supplies. Many of these supplies were later returned to the supermarkets.4 SUMMARY OF LESSONS LEARNED Wave Height Forecasts by Tsunami Warning Centers Availability of Deep-ocean Assessment and Reporting of Tsunamis (DART)
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From page 269...
... Response by Decision Makers The first evidence of evacuation recommendations appears in a 03:51 HST newspaper article in the form of a quote from the spokesman for the Oahu Emergency Management Department ("If you live anywhere in the evacuation zone, you have to evacuate. This is a serious event.
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From page 270...
... "This is a serious event. We're going to be less than three feet, said Pacific Tsunami to treat this as a destructive-type tsunami." Warning Center geophysicist Brian Shiro.
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From page 271...
... • he Tsunami Warning Centers provided forecasts to Civil Defense in the state of Hawaii T that proved to be within the range of observed conditions.
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Key Terms

  • civil defense
  • tsunami wave
  • warning center
  • emergency management
  • warning sirens

  • evacuation zone
  • pacific tsunami
  • wave heights
  • tsunami amplitude
  • evacuation information

  • tsunami bulletin
  • chilean tsunami
  • tsunami evacuation
  • observed tsunami
  • tsunami waves

  • warning centers
  • hawaii civil
  • tsunami inundation
  • tsunami information
  • tsunami response

  • sewage treatment
  • key events
  • ear thquake
  • initial earthquake
  • evacuation zones

  • wave activity
  • oahu emergency
  • hst sat
  • forecast wave
  • wave arrival


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