1. Improved data exchange infrastructure and a virtual network for Europe and the Mediterranean Chad Trabant KNMI/ORFEUS Data Center EC-Project MEREDIAN:

2. A look back in time, 16 years ago Status BB stations 1987 Existing: solid triangles. Planned: open squares. Source: ORFEUS Data Center, 1988

3. The EC project MEREDIAN Mediterranean-European Rapid Earthquake Data Information and Archiving Network Start date: November 1, 2000 MEREDIAN consortium: 18 members End date: April 30, 2005 Goal:Initialize real-time waveform data exchange in Europe and make previously inaccessible data available to the research community, developing a distributed archive WP1: Improving and securing data archival WP2: Improving rapid cross border data exchange WP3: Developing a distributed European seismological archive WP4: Seismological software co-ordination

4. Broadband seismic stations in and around Europe

5. Virtual European Broadband Seismograph Network

6. Real-time automated processing

7. EMSC MIX EuroMed Events 01/09 – 10/10 Mag >= 4.5 VEBSN detection performance NEIS QED Events 01/09 – 16/10 Mag >= 5.5 12 4 14 24 45

8. - Data streams from 70 stations: (operational: ~60 stations, ~ 380 MB/day) - Event processing criteria: EuroMed, lat: 20 – 80, lon: -20 – 50, mb/Ml: >= 4.5 Global, mb/Ml: >= 5.5 -Data products + “5min” product, 5 minutes before and after predicted P-wave + CURD (Collection of UnpRocessed Data) product, 5 minutes before to 30 minutes or phase at 2.4 km/second + AutoDRM access to continuous waveform buffer Minimum 7 days, maximum 30 days + Rapid event alert VEBSN system summary

9. A 5min product: 2003/2/22 20:41, France

10. System status online: overview

11. System status online: per network

12. ODC data pipeline

13. ODC data holdings

14. Results - Rapid, automated data collection for the ODC - Rapid data accessibility for end users - Short-term (30 days) continuous data - Potential for a significant increase waveform data collected - VEBSN produces automatic event bulletins - Stimulate data exchange within the EuroMed community

15. Other real-time data exchange efforts - SeisComP/SeedLink system development GEOFON Project, GFZ, Germany - Real-time data and network integration in the Southern Alps OGS/Univ. of Trieste, Italy EARS, Slovenia ZAMG, Austria - Buffer of Uniform Data (BUD) IRIS Data Management Center, U.S.A. …

16. Table 1. MEREDIAN CONSORTIUM: NLRoyal Netherlands Meteorological Institute (KNMI), De Bilt, The Netherlands CZGeophysical Institute, Academy of Sciences Czech Republic, Prague, Czech Republic ESInstituto Geografico Nacional, Madrid, Spain MNMedNet, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy HLNational Observatory of Athens / Institute of Geodynamics, Athens, Greece. GEGEOFON, GeoForschungsZentrum Potsdam, Germany. GE/PLGeophysical Institute, Polish Academy of Sciences, Warschaw, Poland FRCentre National de la Recherche Scientifique, Nice, France. OEZentralanstalt für Meteorologie und Geodynamic, Vienna, Austria. CHEidgenössische Technische Hochschule Zürich, Switzerland. NONORSAR, Kjeller, Norway. SLEnvironmental Agency of the Republic of Slovenia, Ljubljana SKGeophysical Institute, Slovak Academy of Sciences, Bratislava, Slovak Republic Table 2. Additional participating observatories GEGeological Survey of Cyprus, Nicosia, Cyprus. GEGeological Survey of Estonia, Tallinn, Estonia. GGeoscope, Département de Sismologie, Institut de Physique du Globe, Paris, France. FRReNaSS, Ecole et Observatoire des Science de la Terre, Strasbourg, France. GRGerman Regional Seismograph Network, Erlangen, Germany GEGeophysical Institute of Israel, Lod, Israel. MNIstituto Nazionale di Oceanografia e di Geofisica Sperimentale, Trieste, Italy MNDipartimento di Scienze dellla Terra, University of Trieste, Italy. GEUniversidad Complutense, Madrid, Spain GEReal Observatorio de la Armada, San Fernando, Spain SSObservatori de l'Ebre, Roquettes, Spain GEBogazici University, Kandilli Observatory and ERI, Istanbul, Turkey. IIIRIS/IDA network, University of California, Scripps Institute of Oceanography, USA. IUIRIS/USGS network, USGS Albuquerque Seismological Laboratory, USA. VEBSNVEBSN