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