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The 2004 Sumatra Tsunami and U.S. Tsunami Preparedness Harold Mofjeld NOAA/PMEL and NOAA Tsunami Research Program Seattle, Washington Harold Mofjeld NOAA/PMEL.

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Presentation on theme: "The 2004 Sumatra Tsunami and U.S. Tsunami Preparedness Harold Mofjeld NOAA/PMEL and NOAA Tsunami Research Program Seattle, Washington Harold Mofjeld NOAA/PMEL."— Presentation transcript:

1 The 2004 Sumatra Tsunami and U.S. Tsunami Preparedness Harold Mofjeld NOAA/PMEL and NOAA Tsunami Research Program Seattle, Washington Harold Mofjeld NOAA/PMEL and NOAA Tsunami Research Program Seattle, Washington

2 Objectives By the end of this session you should be able to: Help citizens identify tsunami warning signs and actions they should take Describe the tsunami warning system and tsunami preparedness programs

3 Poll Do you know the natural warning signs of a tsunami? o Yes o No

4 Warnings Signs of Tsunami Earthquake, ground shaking Water withdrawing from shoreline Sound like freight train coming from ocean

5 Center of Excellence in Disaster Management and Humanitarian Assistance Emergency Report : January 8, 2005 Estimated damage: $13.6 B 2004 Sumatra Tsunami Damage Estimated death toll: 150,000+

6 Northeast Indian Ocean Tectonics Source: USGS

7 USGS Shake Map

8 Vasily Titov NOAA/PMEL

9 Tide Gages: Maximum Wave Amplitude

10 Two Hours After the Earthquake

11 Thailand Tsunami Survey

12 Wave Height in Thailand

13 Khoa Lak, Thailand

14 Tsunamis in the Pacific Northwest Three Different Types: –Trans-Pacific Tsunamis –Cascadia Regional Tsunamis –Local Puget Sound Tsunamis

15 Peak Ground Acceleration

16 Puget Sound Tsunamis Cascadia SZ

17 U.S. National Tsunami Hazard Mitigation Program Goal Reduce the impact of tsunamis on US coastal communities States Alaska California Hawaii Oregon Washington Federal Agencies National Oceanic and Atmospheric Admin. U.S. Geological Survey Federal Emergency Management Agency Frank González, NOAA TIME Center, PMEL, Seattle, WA

18 Deep-ocean Assessment and Reporting of Tsunamis (DART) BPR measures changes in pressure at seafloor Data sent to surface buoy, then to the warning centers by satellite Transmissions limited to hourly reporting of 15 minute data When seismic/ tsunami wave detected, system put into alert mode for continuous reporting

19 Rockaway Beach Evacuation Map

20 Tsunami signs in Rockaway Beach, OR

21

22 Tsunami Warnings for Pacific States Alaska California Hawaii Oregon Washington

23 Poll What is the best time to help residents identify tsunami warning signs and what actions to take? A. Now B. Periodically C. All of the above D. None of the above

24 Questions?

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