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Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
Tacloban geohazard assessment report [12.05.13]
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Tacloban geohazard assessment report [12.05.13]

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  • 1. Geohazard Assessment of Leyte Province Nationwide Operational Assessment of Hazards
  • 2. BACKGROUND • Supertyphoon Yolanda (international name Haiyan) • Tacloban City, Leyte
  • 3. Yolanda’s typhoon path moving west north west
  • 4. Location Map of Leyte Province. Leyte is highlighted in red. Tacloban is highlighted in blue, while Eastern Visayas (Region VIII) is in yellow.
  • 5. Tacloban Demographic Data 2012 Census of Population and Housing (CPH, 2013a) Google Maps image of Tacloban and its surrounding municipalities
  • 6. Materials Used in Building the Occupied Housing Units in Tacloban Outer Walls
  • 7. Materials Used in Building the Occupied Housing Units in Tacloban Roofing
  • 8. STORM SURGE SIMULATION The JMA Storm Surge Model is a numerical model developed by the Japan Meteorological Agency (JMA) to simulate and predict storm surges mainly caused by tropical cyclones.
  • 9. Parameters for Storm Surge Modeling Storm track Maximum wind speed, Central atmospheric pressure, Bathymetry.
  • 10. JMA Storm Surge Model of Yolanda
  • 11. http://blog.noah.dost.gov.ph Highest predicted storm surges for November 8, 2013 1:00 pm.
  • 12. NOAA Comet Program Difference between a storm surge and storm tide. NOAA Comet Program difference between a surge on a steep seafloor and gently-sloping seafloor.
  • 13. Storm tide height for San Juanico Strait, Tacloban City
  • 14. Storm Surge Hazard for North of Leyte (READY PROJECT) Source: http://www.geoportal.gov.ph/ (5:01 PM – 09-25-13)
  • 15. Rain-Induced Landslide Hazard Map for North of Leyte (source: MGB) Source: http://www.geoportal.gov.ph/ (5:25 PM – 09-25-13)
  • 16. SHALLOW LANDSLIDE SUSCEPTIBILITY SIMULATION
  • 17. Shallow Landslide Susceptibility Map for North of Leyte
  • 18. ALLUVIAL FAN AND DEBRIS FLOW SIMULATION
  • 19. • Based from the apex of the alluvial fan in the municipality of Kananga, Leyte, a total of 13 barangays are at a risk of debris flows.
  • 20. Landslide Inventory Map for Leyte Province
  • 21. Number of Landslides per Municipality Tomas Oppus Tacloban St. Bernard Sogod Silago Padre Burgos Ormoc City Merida Matalom Malitbog Mahaplag Liloan Libagon Kananga Hinunangan Hindang Dagami Bontoc Albuera Alangalang Abuyog 0 5 10 15 20 25
  • 22. % Area Affected Tomas Oppus Tacloban St. Bernard Sogod Silago Padre Burgos Ormoc City Merida Matalom Malitbog Mahaplag Liloan Libagon Kananga Hinunangan Hindang Dagami Bontoc Albuera Alangalang Abuyog 0 5 10 15 20 25 30
  • 23. Inventory of Landslides in Leyte
  • 24. Landslide Statistics Map for Leyte Province
  • 25. STRUCTURALLYCONTROLLED LANSLIDE SIMULATION Coltop3D – simulates a 3D model of the DEM showing the dip and dip direction of its different discontinuity sets. Matterocking - computes and estimates the locations where rock instabilities can occur based on the identified discontinuity sets that allow sliding
  • 26. Potential Rockslide Zones in Tacloban City, Leyte
  • 27. Portion of Leyte and Southern Leyte Potential Rockslide Zones
  • 28. Saint Bernard, Hinunangan, Libangon and Liloan Potential Rockslide Zones
  • 29. Guinsaugon Area Potential Rockslide Zones and Rock Mass Propagation Extent

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