IOC Expert MissionsMay-August, 2005

UNESCO IOC TSUNAMI PROGRAMME

COMPONENT TECHNOLOGY PRODUCT

1. ASSESSMENT • Historical Studies • Historical Database

• Field Surveys • Inundation Maps• Numerical Simul • Evacuation

Maps

Hazard Reduction Strategy:Hazard Reduction Strategy:

AssessmentAssessment

Risk AssessmentRisk AssessmentWhat is likelihood of occurrence?What is likelihood of occurrence?What is expected earthquake impact?What is expected earthquake impact?What is expected tsunami impact along coast?What is expected tsunami impact along coast?

• Numerical modellingNumerical modellingNeed detailed bathymetry, topographyNeed detailed bathymetry, topographyTIME models (Tsunami InundationTIME models (Tsunami Inundation Modeling Exchange)Modeling Exchange)

• Runup & inundation mapsRunup & inundation maps• Evacuation mapsEvacuation maps

January 3, 2002 Mw7.1 Vanuatu earthquake and tsunami

Tsunami record and Tsunami model based on data

Model Results: Scientific ProductsModel Results: Scientific Products

Assessment - Multiple Hazards Map Assessment - Multiple Hazards Map • Seismic Intensity (Modified Mercalli Scale) Seismic Intensity (Modified Mercalli Scale) • Tsunami Inundation potential Tsunami Inundation potential • Liquefaction susceptibility Liquefaction susceptibility • Landslide potential Landslide potential

Eureka, California

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USGS, E. Giest

Assessment and Mitigation: Empirical Evacuation Maps

1. Post-Tsunami Scientific Survey - Data Collected:1. Post-Tsunami Scientific Survey - Data Collected: Runup, Inundation, Geology, Structural DamageRunup, Inundation, Geology, Structural Damage Eyewitness observations: wave arrival, behaviorEyewitness observations: wave arrival, behavior

2. Satellite Imagery (before and after)2. Satellite Imagery (before and after)

3. Synthesize => Tsunami Event Flooding Map3. Synthesize => Tsunami Event Flooding Map

Assessment and Mitigation: Empirical Evacuation Maps

4. Assuming worst case scenario, 4. Assuming worst case scenario, Considering coastal topography and elevation, Considering coastal topography and elevation, roads and other easily managed walking paths, roads and other easily managed walking paths, strength and height of buildings …strength and height of buildings …Construct Tsunami Evacuation MapConstruct Tsunami Evacuation MapIdentify Tsunami SheltersIdentify Tsunami SheltersConstruct Tsunami Evacuation RoutesConstruct Tsunami Evacuation Routes

Evacuation Maps Evacuation Maps – Safe – Safe RoutesRoutesPlanning ElementsPlanning Elements

Identify ALL StakeholdersIdentify ALL Stakeholders Workshops with Local Workshops with Local

ResidentsResidents Single Access RoadsSingle Access Roads Congregation areasCongregation areas

“Local tsunami evacuation maps developed based on modeling, maps and local oral history”

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Evacuation PlanningEvacuation PlanningTraffic ControlTraffic Control

Beach EvacuationBeach Evacuation

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State Evacuation Map State Evacuation Map Shows routes for Safe Public ExitShows routes for Safe Public Exit

ITIC: Dr. Laura KongITIC: Dr. Laura Kong

PTWC: Dr. Charles McCreeryPTWC: Dr. Charles McCreery JMA:JMA: Masahiro YamamotoMasahiro Yamamoto

ITSU: ioc.unesco.org/itsuITSU: ioc.unesco.org/itsu www.tsunamiwave.infowww.tsunamiwave.info Chair: Dr. Francois SchindeleChair: Dr. Francois Schindele

IOC: Dr. Patricio Bernal IOC: Dr. Patricio Bernal IOC Tsu Prog: Peter Pisserssens IOC Tsu Prog: Peter Pisserssens