1. NOA (HL) Broadband Seismic Network and the Hellenic Unified Seismic Network (HUSN) C. P. Evangelidis cevan@gein.noa.grcevan@gein.noa.gr, http://bbnet.gein.noa.gr Institute of Geodynamics, National Observatory of Athens, P.O. Box 20048, 11810 Athens, Greece

2. Hellenic Unified Seismic Network (HUSN)

3. Stations recorded at NOA

4. Outstation STS-2 Trillium 120P DSL

5. Base Station

6. SeisComp3 Acquisition and Automatic Processing

7. http://bbnet.gein.noa.gr

8. TDMT Procedure at NOA

10. PQXL at NOA

11. HUSN Basic flow diagram Historical data Real-time Data Processing NAQS Server (1) SOH Z N E Ringbuffer Files Processed dataGap information NaqsToUDP to and from other Networks Playback DataServerATLAS Earthquake post-processing Seismic Waveform DB NAQS Server (2) SeedlinkToUDP Data NOA (HL) Response HYDRA (Red) SeedlinkToUDP Data NOA (HL) Response HYDRA (Blue) ATHENA A B

12. EW-HYDRA

13. An example: analyst displays

16. http://athena.gein.noa.gr

17. ATLAS post-processing Software

18. http://bbnet.gein.noa.gr cevan@gein.noa.gr Thank you