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Earthquake Monitoring ICN1 LOGO Training on Disaster Risk Reduction: The Role of DOST Regional Offices, 10-12 December 2013, PHIVOLCS Auditorium PHIVOLCS National Monitoring Network for Earthquake and Tsunami Seismological Observation and Earthquake Prediction Division www.phivolcs.dost.gov.ph www.phivolcs.dost.gov.ph Seismotectonic Setting www.phivolcs.dost.gov.ph Destructive Events Philippine Colonial Churches 1948 Jan 25 M8.1 Ruby Tower, Binondo, Manila Lady Caycay Earthquake 1968 August 17 M7.3 Iloilo Province Casiguran Earthquake San Agustin Hyatt Hotel, Baguio City Church, Intramuros 1990 July 16 M7.8 Luzon Manila Earthquake 1880 July Earthquake www.phivolcs.dost.gov.ph 06 February 2012 Negros Oriental Earthquake Intensity Distribution (PEIS) www.phivolcs.dost.gov.ph 06 February 2012 Negros Oriental Earthquake 60 50 40 30 20 10 0 900 800 700 600 500 400 300 200 100 0 6-Feb-12 7-Feb-12 8-Feb-12 9-Feb-12 10-Feb-12 11-Feb-12 12-Feb-12 13-Feb-12 14-Feb-12 15-Feb-12 16-Feb-12 17-Feb-12 18-Feb-12 19-Feb-12 20-Feb-12 21-Feb-12 22-Feb-12 www.phivolcs.dost.gov.ph Ground Shaking H.C. Penarubia, 2012 www.phivolcs.dost.gov.ph Liquefaction R. Ison, ASEP, 2012 www.phivolcs.dost.gov.ph Landslide A. Daag, 2012 www.phivolcs.dost.gov.ph Tsunami V. Hernandez, QRT, PHIVOLCS-DOST, 2012 www.phivolcs.dost.gov.ph 15 October 2013 Bohol Earthquake Intensity Distribution (PEIS) www.phivolcs.dost.gov.ph Tsunami Events •About 40 earthquakes from 1589 to present that generated tsunamis. •Largest wave-heights of tsunami events occurred in the Zamboanga-Cotabato-Sarangani areas M.L. P. Bautista, 2002 www.phivolcs.dost.gov.ph Tsunami WebSIFT, 1960 Chilean Tsunami TSUNAMI EFFECT OF CHILE EARTHQUAKE AT LEGAZPI TIDE STATION 3 2. 8 2. 6 2. 4 2. 2 2 1. 8 1. 6 1. 4 1. 2 1 0. 8 Heightin meters 0. 6 0. 4 0. 2 0 1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151 161 171 181 191 201 211 221 231 Time: February 28 - March 1, 2010 Legend: 1 Unit equivalent to 10 minutes 2010 Chilean Tsunami, ITIC www.phivolcs.dost.gov.ph The Challenge Effective and sustainable monitoring and communication system that will provide accurate and timely information to the target groups • Monitoring instruments • Power systems • Data communication • Processing & Decision Support System • Notification system www.phivolcs.dost.gov.ph PHIVOLCS Earthquake Monitoring ICN1 www.phivolcs.dost.gov.ph Philippine Seismic Network • Sixty-nine (69) station network • Seismic stations • Volcano observatories • Ongoing Network Development Activities • Target (2016): 85 stations • Acquisition of earthquake monitoring & communication equipment • Development and operation of Cluster Centers (Davao & Lapu-Lapu) • Continued capacity enhancement of technical staff Slide 15 ICN1 Ishmael Narag, 1/24/2013 ICN4 Development of Earthquake Monitoring Network Slide 16 ICN4 Ishmael Narag, 1/24/2013 www.phivolcs.dost.gov.ph Seismicity 2012 01 January – 31 August www.phivolcs.dost.gov.ph Earthquake Impact Assessment 1.0 C1-M Low Code Fragility Curves 0.9 0.8 0.7 0.6 0.5 0.4 Slight 0.3Exceedanceof Probability Moderate 0.2 Extensive 0.1 Complete 0.0 3 4 5 6 7 8 9 10 11 12 MMI DOST-PHIVOLCS ICN2 Itbayat Is. 2013 Target Sites Cagay Sabtang an Is. Mt. Province For 2013 Aurora Zambales Camarines Norte Candoni: ongoing Camarines Sur Ibahay: ongoing Siargao: ongoing Ibahay Siargao Camarines Norte: Candoni Camarines Sur Aurora Mt. Province Slide 19 ICN2 Ishmael Narag, 1/24/2013 www.phivolcs.dost.gov.ph Metro Manila Digital Telemetry Network AAP NZP QVP ARP NBP PAZ LBP www.phivolcs.dost.gov.ph Strong-Motion Network MMSTAR National Network Purpose Strong Motion Earthquake Study Monitoring Number of Stations 10 34 Digitizers Kinemetrics Kelunji • ETNA •D-Series • K2 Sensor Type Kinemetrics Teledyne Geotech • Episensor (ES- •PA-22 T) • FBA-11 • FBA-21 Data Format EVT Suds Data Collection Offline (3 months) Offline (1 day) Start of Operation 1998 2000 (year) Equipments JSPS JICA Grant Project Acquired through (Collaboration with TITECH) M. Lasala, PHIVOLCS-DOST www.phivolcs.dost.gov.ph Strong-Motion Network PHV MRK Peak Horizontal Acceleration – Time (August 1998 – October 2008) SKB DBM PSY PAT 108.77 ORT UST 100.00 55.34 MKT SAC 22.69 19.49 10.00 PHA (gals) PHA 1.00 0.10 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 Date M. Lasala, PHIVOLCS-DOST www.phivolcs.dost.gov.ph Strong-Motion Network PGA - ∆ (August 1998 – October 2008) 100.00 108.77 55.34 PHV 10.00 MRK SKB DBM PSY PGA (gals) PGA 1.00 PAT ORT UST MKT 0.10 SAC 0 200 400 600 Hypocentral Distance (km) M. Lasala, Velocity Response Spectrum PHIVOLCS-DOST www.phivolcs.dost.gov.ph Sea-level Monitoring for Tsunami Warning www.phivolcs.dost.gov.ph Enhancement of Earthquake and Tsunami Monitoring 1 Advanced Earthquake Source Determination 2 Rapid Earthquake Intensity Notification System 3 Tsunami Monitoring and Warning System LOGO 1 Advanced Earthquake Source Determination Earthquake and Tsunami Monitoring www.phivolcs.dost.gov.ph Broadband / Strong-Motion Stations Basco, Batanes (June 22-29, 2012) San Manuel, Pangasinan (Sept 02-08, 2012) Lubang Island Virac, Catanduanes (Dec 14-19, 2010) (Nov 14-20, 2010) El Nido, Palawan Borongan, Eastern Samar (Nov 20-25, 2011) (Dec 03-09, 2011) Guimaras Island, Guimaras (Dec 06-11, 2010) Bataraza, Palawan (Nov 29-Dec 04, 2010) Pagadian, Zamboanga del Sur Mati, Davao Oriental (Nov 22-27, 2010) (Nov 12-18, 2011) www.phivolcs.dost.gov.ph Civil Works for New Seismic Vault GI pipes www.phivolcs.dost.gov.ph Broadband /Strong-Motion Stations Virac, Catanduanes (PVCP) Brooke’s Pt., Palawan (BATP) Pagadian City (PAGZ) El Nido, Palawan (ENPP) Mati, Davao Oriental (MATI) Jordan, Guimaras (GUIM) Lubang Island (LUBP) Borongan, Eastern Samar (BESP) www.phivolcs.dost.gov.ph New Earthquake Monitoring Sensor Before 3-component Short Period Sensor 3-component Titan Strong Motion Sensor 3-component Trillium Broadband 240 After www.phivolcs.dost.gov.ph San Manuel, Pangasinan (SMPP) DOST-PHIVOLCS www.phivolcs.dost.gov.ph Broadband Strong-Motion Stations DOST-PHIVOLCS www.phivolcs.dost.gov.ph JICA/JST Broadband /Strong-Motion Stations Solar panels Batteries and solar charge regulator T-240 sensor & digitizer Cygnus VSAT modem www.phivolcs.dost.gov.ph JICA/JST Broadband / Strong-Motion Station Sample SMPP Record 07 September 2012, 0324 UTC DOST-PHIVOLCS LOGO Earthquake Source Analysis: SWIFT Software Earthquake and Tsunami Monitoring www.phivolcs.dost.gov.ph Information Portal www.phivolcs.dost.gov.ph Seismic Data Gaps Almost regular data gaps Major improvement of signals after migration of the La Union M3.4 seedlink server MyanmarMyanmar aftershock M6.8 M5.8 Myanmar aftershock Guatemala M6.5 www.phivolcs.dost.gov.ph 06 February 2012 Mw6.7 Damaging Earthquake of Negros Oriental: CMT solution suggested a blind thrust fault The SWIFT CMT solution provided a scientific basis for the explanation of this phenomenon www.phivolcs.dost.gov.ph 31 August 2012 Mw7.7: First SWIFT automated CMT solution used by PHIVOLCS in the Evaluation of the Appropriate Tsunami Alert Level The Mw was quite stable Thrust event with magnitude>6.5 and depth 10km: Alert level 3- immediate evacuation www.phivolcs.dost.gov.ph 03 September 2012 Mw 5.5 Earthquake in Bukidnon SWIFT CMT solution characterized a previously unmapped active fault. In this area, the thick volcanic sediments are probably covering the active faults The almost completed broadband network and some GFZ stations allowed resolution of this event www.phivolcs.dost.gov.ph June 2013 Carment, North Cotabato Earthquakes www.phivolcs.dost.gov.ph 15 October 2013 Bohol Earthquake REDAS-SIMULATED INTENSITY (in PEIS) Fault orientation based on PHIVOLCS-JICA-JST SWIFT focal mechanism www.phivolcs.dost.gov.ph 15 October 2013 Bohol Earthquake www.phivolcs.dost.gov.ph Database of SWIFT Events LOGO 2 Rapid Earthquake Intensity Notification System Earthquake and Tsunami Monitoring www.phivolcs.dost.gov.ph Inspection / Testing PHIVOLCS-DOST www.phivolcs.dost.gov.ph Installation at PHIVOLCS Tagaytay Seismic Station Display/Comm.unit Housing and sensor PHIVOLCS Data Receiving Center PHIVOLCS-DOST www.phivolcs.dost.gov.ph Other Installation Sites Metro Manila •17 Cities and Municipalities •Disaster Management Offices •Other Government Offices Office of Civil Defence (OCD) •16 Regional Offices PHIVOLCS Stations (Manned and Main Office) City Government of •30 sites Mandaluyong DOST and Provincial Science & Technology Centers (PSTC) •17 Regional DOST Offices •75 Provincial S&T Centers DOH – Health Emergency Management Staff (HEMS) Offices •19 - Hospitals in Metro Manila •2 - 24/7 Offices in NCR •72 - located in 17 regions PRC – Philippine Red Cross Offices •97 Chapters PHIVOLCS-DOST LOGO 3 Tsunami Monitoring and Warning System Earthquake and Tsunami Monitoring www.phivolcs.dost.gov.ph DOST-GIA Tsunami Early Warning System • Installation of Sea-level detection sensors • Wet sensor • Ultrasonic water-level sensor • Installation of Community Warning Sirens • GSM activated sirens PHIVOLCS-DOST Bolinao Tsunami www.phivolcs.dost.gov.phwww.themegallery.com DetectionFiveBolinao, TeWS-GAA Pangasinan Brgy. Pugaro Brgy. Binloc Brgy. Gueset Bolinao Warning Siren Lingayen Warning Siren Dagupan Warning Sirens PHIVOLCS-DOST www.phivolcs.dost.gov.ph Enhancements • Installation of Sea-level detection sensors • Manila Bay detection site at Corregidor Island • Albay Gulf detection site at Rapu-Rapu • MAD-SS • Installation of Additional Sites • 5 sites Transmitter & Antenna Sensor PHIVOLCS-DOST www.phivolcs.dost.gov.ph Corregidor Tide Gauge Station Tools Qty PVC pipe A (inoue) Impact drill, fully charged batteries, drill 1 bit fit the anchor bolts Solar Materials Qty 3 m Panel Oyster scraper 1 (Inoue) Rubber hose (1 ¼ inner dia, textile 1 reinforced, 20m long) Shovel and ladder (may be needed if the 1 sea is too rough and we install the sensor PVC pipe B to protect the hose from 1 in sand at the base of the pier) waves .
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