CERN Seismic Stations view from SED Seismic Network

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CERN Seismic Stations - view from SED Seismic Network ‘clean’ data streaming since ~15

CERN Seismic Stations - view from SED Seismic Network ‘clean’ data streaming since ~15 March from all 3 stations - All 3 stations have broadband strong motion sensors streaming in real-time - Datalogger: non-seismic standard ‘ Compact Rio’ - Broadband sensors: Guralp CMG 6 T 30 s (tunnels) CMG 40 T 60 s (surface) - Strong motion sensors : Epi. Sensor

Performance – M 3. 3 Chamonix 20/3/2017

Performance – M 3. 3 Chamonix 20/3/2017

Performance – M 3. 3 Chamonix 20/3/2017 Broadband Raw output

Performance – M 3. 3 Chamonix 20/3/2017 Broadband Raw output

Performance – M 3. 3 Chamonix 20/3/2017 Strong Motion 1 -20 Hz BP integrated

Performance – M 3. 3 Chamonix 20/3/2017 Strong Motion 1 -20 Hz BP integrated

Performance – M 3. 3 Chamonix 20/3/2017 CERNS Components error: HGE and HGZ swapped?

Performance – M 3. 3 Chamonix 20/3/2017 CERNS Components error: HGE and HGZ swapped?

Performance – M 3. 3 Chamonix 20/3/2017 Manual Picks

Performance – M 3. 3 Chamonix 20/3/2017 Manual Picks

Performance – M 3. 3 Chamonix 20/3/2017 Station Amplitudes

Performance – M 3. 3 Chamonix 20/3/2017 Station Amplitudes

Performance – Noise 1 day Broadband - Good thermal stability in tunnels

Performance – Noise 1 day Broadband - Good thermal stability in tunnels

Performance – Noise 1 day strong motion

Performance – Noise 1 day strong motion

Performance – Noise PSDs CERN 1 All broadband CERN 5 CERNS Vertical Horiz E/2

Performance – Noise PSDs CERN 1 All broadband CERN 5 CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise PSDs CERN 1 all strong motion CERN 5 CERNS Vertical Horiz

Performance – Noise PSDs CERN 1 all strong motion CERN 5 CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise PSDs CERN 1 All broadband CERN 5 Comparison with GIMEL CERNS

Performance – Noise PSDs CERN 1 All broadband CERN 5 Comparison with GIMEL CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise PSDs CERN 1 All broadband CERN 5 Comparison with test sites

Performance – Noise PSDs CERN 1 All broadband CERN 5 Comparison with test sites CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise PSDs CERN 1 all strong motion CERN 5 Comparison with GIMEL

Performance – Noise PSDs CERN 1 all strong motion CERN 5 Comparison with GIMEL CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise PSDs CERN 1 all strong motion CERN 5 Comparison with SGEV

Performance – Noise PSDs CERN 1 all strong motion CERN 5 Comparison with SGEV CERNS Vertical Horiz E/2 Horiz N/3

Performance – Noise – focus CERNS HHZ Low high frequency noise outside working hours

Performance – Noise – focus CERNS HHZ Low high frequency noise outside working hours Day / night diff 20 d. B

Performance – Noise – focus CERNS HHE Strange long period noise only at night!

Performance – Noise – focus CERNS HHE Strange long period noise only at night!

Performance – Noise – focus CERN 1 HHZ Low high frequency noise outside working

Performance – Noise – focus CERN 1 HHZ Low high frequency noise outside working hours Day / night diff 20 d. B

Performance – Noise – focus CERN 5 HHZ Low high frequency noise outside working

Performance – Noise – focus CERN 5 HHZ Low high frequency noise outside working hours, less than CERN 1 Day / night diff 20 d. B

Integration in Network - CERN stations fully integrated in network, expect to operate like

Integration in Network - CERN stations fully integrated in network, expect to operate like any other SED station, and included permanent archive. - Will be much easier to add / change stations in future! - CERN stations now used in all earthquake related products - Data now accessible via SED. Once archive data is clean, will also make waveforms available on international portals.

Data Management & Access DOI 10. 12686/sed/networks/c 4 Network Reference CERN (2016): CERN Seismic

Data Management & Access DOI 10. 12686/sed/networks/c 4 Network Reference CERN (2016): CERN Seismic Network. ETH Zurich. Other/Seismic Network. 10. 12686/sed/networks/c 4

Data Management & Access Arclink portal Community webservices (fdsn) http: //www. seismo. ethz. ch/en/

Data Management & Access Arclink portal Community webservices (fdsn) http: //www. seismo. ethz. ch/en/ research-and-teaching/products -software/waveform-data/

Data Management & Access Strong motion portal strongmotionportal. ethz. ch

Data Management & Access Strong motion portal strongmotionportal. ethz. ch

Data Management & Access Europe….

Data Management & Access Europe….

Data Management & Access Homepage (earthquakes) http: //www. seismo. ethz. ch/ Daily updated PSDs

Data Management & Access Homepage (earthquakes) http: //www. seismo. ethz. ch/ Daily updated PSDs http: //www. seismo. ethz. ch/en/research-and-teaching/products-software/station-information/noise-all/ SED will continues to stream, process and archive and distribute all C 4 data SED will inform CERN of any problems it encounters (automated tracking of streaming, periodic checking of PSDs, daily review of earthquake signals) SED will continue to support CERN C 4 operators as needed.

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