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PHIVOLCS Hazard Maps PHIVOLCS Hazard Maps Training on Disaster Risk Reduction: The Role of DOST Regional Offices Jeffrey S. Perez Philippine Institute of Volcanology and Seismology Department of Science and Technology Objective • To know the different available hazard maps at PHIVOLCS. • To be familiarized with the contents of the different hazard maps (scale, legend, etc.). Hazard Maps -For use in: -- Evacuation -- Emergency response -- Rehabilitation -- Planning location of settlements, facilities (comprehensive land use and development plans) Volcanic Hazards Potentially damaging eruptive and post-eruptive phenomena •Ashfall •Lava flows •Pyroclastic flows •Lahars •Fissuring •Tsunamis (Source: PHIVOLCS) •Debris avalanche, landslide Volcano Hazard Maps Available Banahaw Preliminary Lava Flow, Pyroclastic Flow, Lahar and Flashflood (2004); Volcanic Hazard Map of the Banahaw Volcanic Complex (San Cristobal, Banahaw, Banahaw de Lucban): READY Project 2008 Bulusan Lahar (2007); Lava, Pyroclastic Flow and Surge (2000) Cabalian Lahar and Pyroclastic Flow and Surge (READY Project: 2007) Cagua Preliminary Hazard Zonation Map of Cagua Volcano (1996) Canlaon Extent of Ashfalls, Lava Flow, Pyroclastic Flow and Lahar (2012) Hibok- Proclastic Flows and Lateral Blasts, Lava Flows, Lahars and Hibok Floods, Airfall Tephra and Ballistic Projectiles and Hazard Zonation Map (1987) Volcano Hazard Maps Available Iraya Preliminary Hazard Map (Lava Flow and Pyroclastic Flow of Iraya Volcano (1998) Iriga Preliminary Hazard Map of Iriga Volcano (1995) Mahagnao Lahar and Pyrocalstic Flows and Surges (READY Poject: 2007) Mayon Ashfall and Lava Flow (2000); Pyroclastic Flow (2003); Lahar (2010) Matutum Preliminary Hazard Map (Lahar and Pyroclastic Flows) 1998 Parker Preliminary Hazard Map (Lahar and Pyroclastic Flows) 1999 Pinatubo Lahar and Flood Hazard Maps (2004; READY Project 2008 and 2010) Taal Ballistic Projectiles, Base Surge, Seiches/Lakewater Oscillation and Fissuring (2011) Volcanic Hazard Maps: Some Examples Taal pyroclastic flow (base surge) hazard map Pinatubo lahar hazard map Mayon Volcano Lava Flow Hazard Maps Mayon Volcano Lava Flow Hazard Maps Earthquake-related Hazards Ground Shaking – Fault (Ground) Rupture Collapse of Building Liquefaction Landslide Tsunami Fire Distribution of Active Faults and Trenches in the Philippines Active Faults Map 1:250,000 Active Faults Map 1:50,000 1:5,000 Ground Shaking Hazard Map Southern Leyte Northern Samar Leyte Eastern Samar Liquefaction Hazard Map Northern Samar Leyte Southern Leyte Eastern Samar Leyte Earthquake-induced Hazard Map Northern Samar Eastern Samar Southern Leyte Tsunami Prone Areas in the Philippines Leyte Tsunami Hazard Map Northern Samar Eastern Samar Southern Leyte Tsunami Hazard Maps Learning Activity • Familiarization with the features and elements of the tsunami hazard map • Gain working knowledge in how to use the hazard map • Be able to identify possible evacuation sites Tukuran Labangan Pagadian City Dumalinao Groupings • Group 1: Charmaine CAR, I, II, III • Group 2: Lucille NCR, VII, IV-A, IV-B, V • Group 3: Melcario IX, X, XI, XII, CARAGA Activities • Locate elements at risk (schools, hospitals, etc.) in the map • Identify the possible maximum tsunami wave height in the map • Identify the maximum extent of tsunami inundation from the shoreline in the map. • Determine possible evacaution sites in the map. Earthquake & Tsunami (24/7): Contact Us: Tel. Numbers http://www.phivolcs.dost.gov.ph • +632 929-9254 • +632 426-1468 loc 124 / 125 /phivolcs_dost Fax number • +632 927-1087 Volcano (24/7): Tel. Numbers Philippine Institute • +632 426-1468 loc 127 of Volcanology and Telefax number Seismology (PHIVOLCS-DOST) • +632 927-1095 IEC materials: • +632 426-1468 loc 128 • +632 927-4524 .
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