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Tsunamis!

Tsunamis!. Daniel Cox Director, O.H. Hinsdale Wave Research Laboratory. Thanks to:. National Science Foundation. Network for Earthquake Engineering Simulation. Oregon Sea Grant. Stages of a Tsunami. Generation Propagation Inundation. How are tsunamis created?.

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Tsunamis!

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  1. Tsunamis! Daniel Cox Director, O.H. Hinsdale Wave Research Laboratory

  2. Thanks to: National Science Foundation Network for Earthquake Engineering Simulation Oregon Sea Grant

  3. Stages of a Tsunami Generation Propagation Inundation How are tsunamis created? What happens when they hit land? How do they move through the ocean?

  4. Tsunami Generation by Earthquakes Illustration of Tsunami Generation by Subduction Zone (USGS)

  5. Tsunami Propagation (NOAA)

  6. DART Buoys to detect tsunami (NOAA)

  7. Tsunami Buoys Cascadia Subduction Zone

  8. Tsunami Inundation For the Pacific Northwest, we need to prepare for the nearfield tsunami

  9. Tsunami Buoys 30 min Cascadia Subduction Zone 1 in 7 chance in the next 50 years

  10. Seaside, Oregon 20-30 min to evacuate the beach Tsunami Evacuation Area

  11. What about VERTICAL EVACUATION? Patong Beach, Phuket Thailand, 2004

  12. Tsunami shelter in Japan USA Japan

  13. New! Dynamic Tsunami Hazard Map Harry Yeh Oregon State University Katada Gunma Univ. Japan

  14. A Tsunami Inundation Model for Seaside

  15. Idealized Seaside Fixed Bed -- Water moves, buildings don’t

  16. Demonstration of Cascadia subduction zone tsunami

  17. Tsunami inundation calculations with “Macro-roughness” Patrick Lynett Texas A&M University

  18. “Wave Force Potential” Numerical Calculations Patrick Lynett Texas A&M University

  19. J. Van de Lindt, Colorado State Univ. R. Gupta, Oregon State University

  20. 1:6 Scale Residential Building J. Van de Lindt, Colorado State Univ. R. Gupta, Oregon State University

  21. Proposed Research Tsunami Intensity Scale* ( = rho * u^2 * depth) High intensity Medium intensity Low intensity *This can be calculated by TSUNAMOS

  22. Proposed Research We have existing information on what types of buildings are in a community Steel reinforced concrete (modern hotel) Unreinforced CMU (old hotel) Timber Frame (residential)

  23. Proposed Research Use ‘limit states’ to get probabilistic estimate of expected damage Damage depends on both the ‘intensity’ of tsunami and the type of structure Legend Building survives Building damaged Totally destroyed

  24. Proposed Research Outcome: Produce allows Structures to be identified for potential ‘vertical evacuation shelters’ Or …

  25. Proposed Research … Identify places where new shelters will reduce the loss of life

  26. Introduction to Engineering

  27. Proposed Tsunami Discovery Center

  28. Thank you! Thanks to: Chris Goldfinger, Oregon State Univ. Harry Yeh, Oregon State Univ. Photo: K. Fujima, Japan

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