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Instituto de Meteorologia, I.P. Department of Seismic and Geophysical Monitoring. NEAREST 1 st Meeting, Bologna, October 2006. Instituto de Meteorologia, I.P. - PowerPoint PPT Presentation
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Instituto de Meteorologia, I.P.Instituto de Meteorologia, I.P.
Department of Seismic and Geophysical Monitoring
NEAREST 1st Meeting, Bologna, October 2006
Instituto de Meteorologia, I.P.Instituto de Meteorologia, I.P.
1947 – Serviço Nacional de Meteorologia;1977 – Instituto 1947 – Serviço Nacional de Meteorologia;1977 – Instituto Nacional de Meteorologia e Geofísica; 1993 – Instituto de Nacional de Meteorologia e Geofísica; 1993 – Instituto de Meteorologia; 2003 – Instituto de Meteorologia, I.P.Meteorologia; 2003 – Instituto de Meteorologia, I.P.
National responsable for the activities inNational responsable for the activities in MeteorologyMeteorology SeismologySeismology GeomagnetismGeomagnetism
Instituto de Meteorologia, I.P.Instituto de Meteorologia, I.P.
Atributions:Atributions: Maintain and develop the national information systems Maintain and develop the national information systems
of meteorology and seismologyof meteorology and seismology Exclusivity in the dissemination of bad weather Exclusivity in the dissemination of bad weather
warningswarnings Promote contacts with Civil Defense in case of seismic Promote contacts with Civil Defense in case of seismic
or meteorologic catastrophesor meteorologic catastrophes Promote the development of the international relations Promote the development of the international relations
and cooperation in the domains of meteorology and and cooperation in the domains of meteorology and seismologyseismology
Instituto de Meteorologia, I.P.Instituto de Meteorologia, I.P.
Department of Seismic and Geophysics Monitoring:Department of Seismic and Geophysics Monitoring: National responsible for monitoring the seismicity in National responsible for monitoring the seismicity in
mainland, Madeira islands and adjacente areasmainland, Madeira islands and adjacente areas Gives support to the seismic monitoring in Azores, Gives support to the seismic monitoring in Azores,
which is performed by the SIVISA consortium (IM and which is performed by the SIVISA consortium (IM and University of Azores)University of Azores)
Runs several seismic networks in the mentioned Runs several seismic networks in the mentioned regionsregions
Portable networkPortable network Research work on seismicity, seismotectonics, seismic Research work on seismicity, seismotectonics, seismic
attenuation and experimental seismologyattenuation and experimental seismology
S STF UTS N FN S
1997-2004
Published data (1961-2004)
Seismicity 1996-1999 (errZ(90%)<10km
Contribution to the NEAREST projectContribution to the NEAREST project
Portuguese National Seismic networkPortuguese National Seismic network New broadband and RT network under installation New broadband and RT network under installation
(MODSISNAC)(MODSISNAC) Seismic monitoring and surveillance experienceSeismic monitoring and surveillance experience
Mainland/Madeira Network [IMP]Mainland/Madeira Network [IMP]
MODSISNAC – new BB seismic networkMODSISNAC – new BB seismic network
by performing major improvements in the present network:by performing major improvements in the present network:• introduce significant enhancements in the remote stations• adopt (near) real-time transmission of signals• real-time processing capability
Supported bySupported by• Portuguese National Science Foundation, FCT (20 stations)• Private Donation (GALP – oil company) (2 stations)• Instituto de Meteorologia, I.P. (operation and maintenance)
Solve some constrains:Solve some constrains:• frequency band (SP stations …)• dynamic range• non real time (digital)
MODSISNAC – new BB seismic networkMODSISNAC – new BB seismic network
These improvements will permit: These improvements will permit: • quality data acquisition in highly sensitive stations which are also equipped with strong-motion sensors• higher quality digital transmission• real time monitoring at the Operational Center• automatic signal detection• automatic association of detections, event location and magnitude evaluation• development of a rapid earthquake information system for Civilian Protection authorities • automatic archive of recorded data• development of high-level products (bulletins, shake maps, etc.)• contribute to international monitoring efforts (FDSN, ORFEUS, tsunami projects [NEAREST, IOC])• data for scientific research purposes
MODSISNAC – new BB seismic networkMODSISNAC – new BB seismic network
Seismometer CMG-3T & 3ESP compactAccelerometer CMG-5TDigitiser DM24 (6 components)(GPS time signal)Seiscomp unit (seiscomp software)
VSAT / Internet(seedlink)
21 stations
Data Center (Lisbon)(SEISCOMP)
Seismometer STS-2Accelerometer EpisensorDigitiser Q330 (6 components)(GPS time signal)Seiscomp unit (seiscomp software)
1 station
Quality Control Near RT
processingManual revision
Archieve(Storage Area
Network)
MODSISNAC - New BB Seismic NetworkMODSISNAC - New BB Seismic Network
Madeira isl.
Azores isl.
Por
tuga
l mai
nlan
d
PlannedExisting RT(IRIS/IDA, GEOFON, IST, CGUL)
ExpectationsExpectations
Identification and characterization of the tsunamigenic Identification and characterization of the tsunamigenic sources; impact scenarios in SW Portugalsources; impact scenarios in SW Portugal
Long-term seafloor observatory with RT accessLong-term seafloor observatory with RT access EWS PrototypeEWS Prototype
<90º<90º 90º-180º90º-180º
180º-270º180º-270º >270º >270º
Seismicity1970-2000