Current tsunami research activities in the Philippines

Transcription

1 DOST PHIVOLCS Current tsunami research activities in the Philippines Graciano P. Yumul, Jr. 1,2, Carla B. Dimalanta 1 and Bart Bautista 3 1 National Institute of Geological Sciences, University of the Philippines, Diliman, Quezon City, Philippines 2 Department of Science and Technology, Bicutan, Taguig, Philippines 3 Philippine Institute of Volcanology and Seismology Department of Science and Technology, Diliman, Quezon City, Philippines

2 Objectives To present what the Philippines has been doing in terms of tsunami mitigation and to identify future directions Bautista, 2006

3 Outline Philippine setting Current activities in the Philippines Risk assessment Monitoring Warning Modeling Future directions

4 Tectonic map of Southeast Asia Indochina Sundaland- Eurasian Plate Philippines Philippine Trench Philippine Sea Plate Sumatra-Java Trench Sulawesi Sumatra Borneo New Guinea Java ftp://ftp.ngdc.noaa.gov/

5 Seismicity around the Philippines

6 Current activities Hazard and risk assessment Monitoring Warning Modeling

7 DOST PHIVOLCS Hazard and risk assessment Ko Puh, Thailand

8 Hazard and risk assessment Tsunami Hazard Assessment and Mitigation Program Tsunami Risk Mitigation Program Besana et al., 2005

9 THAMP 1. Davao Oriental (1992 Manay tsunami) 2. Bohol island (1990 earthquake) 3. SW Mindanao (1976 Moro Gulf earthquake) 4. Manila Trench tsunamis 5. Sorsogon uplifted terraces 6. Paraoir porites and uplifted terraces Besana et al., 2005

10 Tsunami Risk Mitigation Program Assess risk and develop a model for tsunami preparedness, warning and evacuation at the local government level Increase the level of awareness and preparedness of vulnerable communities to tsunami hazards and risks Develop simple and low cost technology for tsunami detection and warning

11 DOST PHIVOLCS Monitoring and warning

12 Tsunami monitoring and warning Far field tsunami events (eastern seaboard): Pacific Tsunami Warning Center Northwest Pacific Tsunami Warning and Information Center

13 PTWC area of responsibility

14 Northwest Pacific Tsunami Warning and Information Center (Japan government) Bautista, 2006

15 Tsunami monitoring and warning Near-field tsunami events: Local tsunami warning system

16 Local tsunami warning system Real-time seismic monitoring system Real-time local tsunami detection system Rapid communication system Mass alerting system

17 National seismic monitoring network 30 satellite telemetered stations With real time data transmission 34 manned stations Equipped with SSB radios and telephones for non-real time data transmission 9 of the 34 manned stations have broadband instruments PHIVOLCS

18 Instrumentations in the satellite-telemetered unmanned stations of PHIVOLCS Batteries and solar charger regulator Seismic vault, solar panel and VSAT antenna Three component shortperiod sensors Digitizer and VSAT modem / transmitter

19 Tsunami detection network Real-time tsunami wave detection stations First station installed in Lubang Island, Mindoro (funded by government of Finland)

20 PHIVOLCS tsunami wet sensor Electric cable Water collecting vessel Air Vent The height of the tube and elevation of probes and collecting vessel could be adjusted to set the tsunami height measurement level (i.e. 1 m, 3 m, 6 m or 10 m) Stainless Tube Tsunami Water Intake H To relay switch Concrete Pier Sea Water

21 Tsunami wet sensors, Lubang Island Bautista, 2006

22 DOST PHIVOLCS Modeling

23 Tsunami modeling Moro Gulf, Mindanao Arrival times and run-up heights PHIVOLCS

24 Tsunami modeling Moro Gulf, Mindanao Inundation areas (red) PHIVOLCS

25 Tsunami modeling Highlydispersive wave model Simulate tsunami inception and propagation Simulated wave height 4 hours after the earthquake Rivera, 2006

26 Tsunami modeling Manila Trench as possible source of tsunamis that can affect coastal communities of Metro Manila Bautista, 2006

27 Future directions National programs on disaster management Networking with S&T centers dealing with seismological hazards International collaborations for capacity and capability building

28 DOST PHIVOLCS National Programs

29 Department of Science and Technology Priority R&D programs ICT Alternative fuels Biotechnology Health and pharmaceutical Environment

30 Environment R&D programs Climate change Pollution control Disaster management

31 Environment: Disaster management program Meteorology (e.g. typhoon) Hydrology (e.g. flood, dam operation) Volcanology Seismology Active Faults Tsunami

32 Networking with S&T centers ASEAN Committee on Science and Technology APEC Industrial Science Technical Working Group Asian Disaster Preparedness Center Installation of tsunami buoys between Malaysia and Philippines

33 International collaboration for capacity and capability building Mobility of young scientists Ready access to appropriate technologies and equipment Joint R&D collaborations Open laboratories

34 Some questions we may want to answer 1. Scientific issues to be resolved? 2. Timeline and milestones? 3. Modality of collaborations? 4. Databasing, management and access? 5. Funding mechanism?

35 Future directions Pacific Tsunami Warning Center SCS Northwest Pacific Tsunami Warning and Information Center

36 DOST PHIVOLCS