NOA (HL) Broadband Seismic Network and the Hellenic Unified Seismic Network (HUSN) C. P. EvangelidisInstitute of Geodynamics, National Observatory of Athens, P.O. Box 20048, Athens, Greece Hellenic Unified Seismic Network (HUSN) Stations recorded at NOA Outstation STS-2 Trillium 120P DSL Base Station SeisComp3 Acquisition and Automatic Processing TDMT Procedure at NOA PQXL at NOA 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 EW-HYDRA An example: analyst displays ATLAS post-processing Software Thank you