Daniel Cox Director, O.H. Hinsdale Wave Research Laboratory
Thanks to: National Science Foundation Network for Earthquake Engineering Simulation Oregon Sea Grant
Generation Propagation Inundation Stages of a Tsunami How are tsunamis created? How do they move through the ocean? What happens when they hit land?
(USGS) Tsunami Generation by Earthquakes Illustration of Tsunami Generation by Subduction Zone
(NOAA) Tsunami Propagation
DART Buoys to detect tsunami (NOAA)
Tsunami Buoys Cascadia Subduction Zone
Tsunami Inundation For the Pacific Northwest, we need to prepare for the nearfield tsunami
Tsunami Buoys Cascadia Subduction Zone 30 min 1 in 7 chance in the next 50 years
20-30 min to evacuate the beach Tsunami Evacuation Area Tsunami Evacuation Area
Patong Beach, Phuket Thailand, 2004 What about VERTICAL EVACUATION?
Tsunami shelter in Japan JapanUSA
Harry Yeh Oregon State University Dynamic Tsunami Hazard Map Katada Gunma Univ. Japan
A Tsunami Inundation Model for Seaside
Idealized Seaside Fixed Bed -- Water moves, buildings don’t
Demonstration of Cascadia subduction zone tsunami
Tsunami inundation calculations with “Macro-roughness” Patrick Lynett Texas A&M University
“Wave Force Potential” Numerical Calculations
J. Van de Lindt, Colorado State Univ. R. Gupta, Oregon State University
J. Van de Lindt, Colorado State Univ. R. Gupta, Oregon State University 1:6 Scale Residential Building
Tsunami Intensity Scale* ( = rho * u^2 * depth) High intensity Medium intensity Low intensity *This can be calculated by TSUNAMOS 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) 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 Proposed Research
Outcome: Produce allows Structures to be identified for potential ‘vertical evacuation shelters’ Or … Proposed Research
… Identify places where new shelters will reduce the loss of life Proposed Research
Introduction to Engineering
Proposed Tsunami Discovery Center
Photo: K. Fujima, Japan Thanks to: Chris Goldfinger, Oregon State Univ. Harry Yeh, Oregon State Univ.