International Symposium on Earthquake & Tsunami Disaster Reduction, March 14-15, 2012, Sendai, Japan

Transcription

1 International Symposium on Earthquake & Tsunami Disaster Reduction, March 14-15, 2012, Sendai, Japan E h Enhancement t off earthquake th k and d volcano monitoringg in the Philippines: Progress report and strengthening of tsunami component of the project Hiroshi INOUE NIED

2 Earthquakes and Volcanoes in the Philippines Eurasia Plate Taal Vl Volcano Philippine Sea Plate 7 8cm/yr Mayon Volcano Past tl large earthquake(casualty) 1954 M8.3 Bacon, Sorsogon(13) 1955 M7.5 Lanao (291) 1968 M7.3 Casiguran (270) 1970 M7.3 Baler (15) 1976 M7.9 Moro Gulf (3,739) 1990 M7.8 Luzon (1,283) 1994 M7.1 Mindoro (83) Past large eruptions(casualties) i 1911 Taal (1300) 1948 Hibok Hibok Hibok(68) 1965 Taal (190) 1991 Pinatubo(870) 1993 Mayon(77)

3 Modern earthquake and volcano network was established by the Japanese Grant Aid project in 1999 and manned earthquake observatories (off line, short period, broadband, SMS) 29 VSAT short period seismometers 6 Volcano Observatories 3 wireless telemetry short period x 6 volcanoes Data Processing Center Manual Analysis

4 5

5

6 The 1 st Joint Coordination Meeting and Kick off Workshop February 2010, at PHIVOLCS, Manila Signing of PHIVOLCS NIED MoU

7 1. Real time earthquake monitering 1.1 Advanced earthquake source determination system SP sensor is sensitive only to short period ground motions Underestimate M of large EQ. Broadband seismometer can records large earthquakes precisely SWIFT source inversion by NIED 2006/7/17 Off Jawa Mw7.5 More than 600 casualties By Tsunami USGS (9.22S, E, 33km) SP sensor saturates by large earthquake Difficult for tsunami warning Strong motion sensor does not saturate Harvard CMT (10.28S, E, 20km) Automated analysis of source time function Discriminate Tsunami EQ More precise information of the Strong motion sensor does not saturate source of large earthquakes

8 Installation of broadband seismometers, Nov. Dec., 2010 Broadband Strongmotion Strongmotion (Titan) Broadband (T240) The Team in Virac

9 Rapid Earthquake Intensity Notification System 100 Locations at Local Government Building/PHIVOLCS obs. 1500kmx1500km 200kmx200km 30kmx30km 40 nationwide as the 2 nd experiment 30 in Luzon as the 2 nd experiment 30 in Manila as the1 st experiment Marikina City Government

10 Test run in PHIVOLCS

11 Rapid Damage Estimate: Utilization and enhancement of REDAS REDAS (Rapid Earthquake Damage Assessment System) Developed by PHIVOLCS(2002-) Hazard estimation(gound motion, Liquefaction, Landslide, Tsunami) Promotion of utilization is ongoing by PHIVOLCS Enhance REDAS to Real-time REDAS by PHIVOLCS in this project PGA/PGV=>> Intensity Liquefaction Tsunami

12 2. Evaluation of earthquake generation potential Mindanao Frequent occurrence of large earthqukaes Need to evaluate the potential Currrently Inland Earthquake Philippin Fault in Mindanao Fault-generated topography Quescense GPS 観測点 Subduction earthquakes Philippine Trench, Cotabato Trench Large events in the past No large events in recent years 対象領域

13 2. Evaluation of earthquake generation potential Evaluation of Earthquake Generation Potential Cotabato Trench Philippine Trench Philippine Fault Coupling Model Coupling Model Reccurence time and Magnitude Geological and Geomorphologocal Approach Terrace structure Tsunami deposit Plate velocity and coupling Geophisical Approach Reccurence time and Magnitude, Fault segment Fault Trenching Topography Strain accumulation process GPS Campaign and Continuous observations b ti

14 GPS Campaign Observations March 2010

15 3. Integrated real time volcano monitoring Taal Activities in the past Mayon Erupting every years, but no eruption since Ready to erupit. Continuous activities since 2003

16 Taal volcano Manila Broadband seismic monitoring of underground magma movements Infrasound observation for detection and size estimation of eruptions and size estimation of eruptions GPS observations for estimation of deformation and pressure source Electromagnetic observations to monitor thermal structure CCD Live cam Satellite telemetry to Manila VSAT Broadband/Infrasound, GPS, Electromagnetic Broadband only Installation of a system of y comprehensive monitoring of the precursors

17 Installation of Seismic & Infrasound sensors in Taal Broadband Seismometer Infrasound sensor 船で移動 運搬 Solar Panel

18 Installation of GPS and EM sensors in Taal Dt Data logger Fluxgate magnetometer GPS Data logger Overhauser magnetometer

19 Mayon Volcano z Broadband seismic monitoring of underground magma movements z Infrasound observation for detection and size estimation of eruptions z CCD Live cam z Satellite telemetry to Manila Manila

20 4.1 Development of disaster mitigation information portal site Source Tsunami Intensity est. Intensithy measureme nt Precursor 太い回線 Provide a gateway to earthquake and volcano information to everyone Seismicity/Crustal Mov. Live cam Simple seismic diagnesis + PHIVOLCS s internal information sharing

21 Survey of non engineered houses for Developing Seismic Diagnosis for Everyone Panpanga Panpanga Mindanao Makati Marikina Mindanao

22 February, 2011, in Tsukuba Japan Full scale shaking table experiment of Philippine CHB masonry houses

23 Promotion of utilization of the portal site Holding Seminars for NDCC members Local government Communities Capacity Building through Provision and Training on the Use of a Hazard and Risk Assessment Software (REDAS)

24 Construction of Web portal of Earthquake and Volcano Disaster Information as Scientific Basis of Disaster Reduction Polity of the Philippines 100% Scenario Earthquake and ExpectedIntensities Construction of Real time Earthquake and Volcano Monitoring Information System and Assisting Earthquake and Tsunami Damage Estimate Magnitude and Reccurence Period of Large Earthquake Fault Excavation and Tsunami Deposit/ Coastal Terraces Coupling and Strain Accumulati on GPS Campaign and Continuous Observatio n and Analysis REDAS Realtime Ground motion Estimation Automated Source Analysis System Installing Broadband Seismomet ers Evaluating Nationwide Network Evaluating Metro Manila Network Developme nt of Real time Earthquake Intensity Monitoring System Construction of Real time Integrated Volcano Monitoring System Estimation of Earthquake and Pressure Sources Broadband Seismic Telemetry and Analysis System GPS Telemetry and Analysis System and SAR Estimation of Heat Sources Electromag netic Telemetry and Analysis System Utilization and Campaign Web System Portal Content Seis mic Diag nosi s Syst em 80% 60% 40% 20% 0% Earthquake Potential Earthquake Monitoring Volcano Monitoring Disaster Info.

25 After March 11, 2011 Great East Japan Earthquake Strengthening of Tsunami Component Seismic and Sea Level Monitoring (1)Sea Level Monitoring Forecasting and Dissemination (2) JMA s advisor People s Awareness, Evacuation Plan and Drill (3) Video Interviews of Phillippino Victims Sea Walls, Evacuation Buildings

26 Video Interviews with Filipino victims of the Great East Japan Earthquake

27 Strengthening PIVOLCS s Tsunami Forcasting and Decision Making System with JMA s Advisory JMA PHIVOLCS

28 Sea Level Monitoring for the Last Minutes Tsunami iwarning for Cities i in Bay Areas

29

30 Thank you very much