Nearly real-time monitoring system ofTABOO seismic network activity.

Marzorati S.* and TABOO working group

* National Earthquake Centre, Ancona

Istituto Nazionale di Geofisica e Vulcanologia

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

TABOOGROUP

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

0 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

Nearly real-time monitoring system of TABOO: seismic network activity.

Seismic Network Maintenance, Monitoring, Data quality check, Data analysis, site characterisation

INGV-CNT Ancona staff:

-Monachesi Giancarlo-Cattaneo Marco-D’Alema Ezio-Frapiccini Massimo-Carannante Simona-Ladina Chiara-Marzorati Simone Ancona

staff

Earthquake National Center (INGV-CNT)

Ancona-INGVAcquisition Data Center

TELECOMMUNICATIONNETWORKS

Alto Tiberina Wi-Fi Hiperlan

MARCHE WAYWi-Fi Radiolink 6.4 GHz SDH (155 Mbps)

Local Radiolink

TABOO SEISMIC NETWORK:

Data Transmission and Acquisition

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INGV seismic stations

TABOO seismic stations

- Wi-Fi networks and UMTS routers transmit continous seismic data in real time

- The Data Acquisition is managed by Seiscomp3 server

- Data Archive: MiniSEED

Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

Ancona INGVAcquisition Data Center

-Netscout

-Seiscomp3

TABOO SEISMIC NETWORK:

REAL TIMETelemetry and Station STATUS

Radiolink

Seismic Station

Active

No communication

NETSCOUT is a product of Ars Comm engineering company (www.arscomm.it)

The software monitors the parameters and alarms of telecommunication networks in real time.

Telemetry Status

2 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

Real Time monitor

Backbone node

Seiscomp3 SCQCV client

Seismometer status and a detailed view of Quality Control (QC) parameters:

Delay, Latency, Offset, RMS, Gap,Timing of real time signals

TABOO SEISMIC NETWORK:

REAL TIMETelemetry and Station STATUS

2 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

-Netscout

-Seiscomp3

Real Time monitor

-Netscout-UC34a

-Health Control UC34

-Seedlink GAIA2

-SMS UMTS router

Netscout shows power station levels (voltage, power, temperature on site).If a radiolink backbone node doesn’t work, we can try to stop and start the power station by a remote control push button

3 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

Power Station Checkat RadioLink backbone node

TABOO SEISMIC NETWORK:

Reboot by Remote Controls

UC34a

backbone

UC34 is a Control Unit of Ars Comm engineering company, devoted to check the connectivity between remote seismic station and backbone radiolink.A modified version communicates with INGV-GAIA2 data logger to monitor acquisition processes status

3 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

-Netscout-UC34a

-Health Control UC34

-Seedlink GAIA2

-SMS UMTS router

H-UC34

GAIA2

TABOO SEISMIC NETWORK:

Reboot by Remote Controls

Automatic Check of Connectivity and Acquisition at remote sites

ping

backbone

Backbone node

Radiolink

Telnet connection with Linux O.S. in the GAIA2:

-Stop and Restart of seedlink processes

-Linux O.S. shutdown and reboot

3 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

Reset of the seismic station acquisition system

TABOO SEISMIC NETWORK:

Reboot by Remote Controls

-Netscout-UC34a

-Health Control UC34

-Seedlink GAIA2

-SMS UMTS router

UR5 UMTS router used on seismic stationsout of the WiFi network.

The SMS service is available to reboot the UMTS router by Configuration Menu Text of the SMS from mobile phone: «reboot»

3 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

TABOO SEISMIC NETWORK:

Reboot by Remote Controls

UR5 UMTS router Reboot

-Netscout-UC34a

-Health Control UC34

-Seedlink GAIA2

-SMS UMTS router

Power Supply Trends on each seismic station

-Power Supply

-Tracked GPS Satellites

-Gaps

TABOO SEISMIC NETWORK:

Nearly Real Time Status History

An automatic process on the Linux O.S.creates a file with power supply value registered by GAIA2 seismic data logger. By Crontab & SCP connection we extractand archive power supply values every 10 minutes.

The power supply values are shown on three-day Monitor (updated every hour) to check the functionalities of the different power supply systems.

4 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

Constant supply:Electrical Power Line on site

Gradient supply:(methanol) fuel cell

Impulsive supply:Solar panels

Three-day monitor

The last day

The last week

The last month

All data

Seismic station GPS check

4 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

-Power Supply

-Tracked GPS Satellites

-Gaps

TABOO SEISMIC NETWORK:

Nearly Real Time Status History

An automatic process on the Linux O.S.creates a file with tracked satellites value on the GPS system of the GAIA2 seismic data logger. By Crontab & SCP connection we extractand archive tracked satellites values every 10 minutes.

The tracked satellite values are shown on three-day Monitor to check the functionalities of the seismic station GPS system.

Three-day monitor

Gap trends check

4 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

-Power Supply

-Tracked GPS Satellites

-Gaps

Yesterday monitor

We apply «qmerge» Passcall software on each seismic channel to monitor the gap trends.

The number of gaps are shown on «yesterday» monitor, but the whole gap history is archived.

TABOO SEISMIC NETWORK:

Nearly Real Time Status History

Satellite links in bad weather conditions (snow)

Evaluation of seismic noise over a long time by PQLX software (*McNamara and Buland, 2004) : trace statistics, Power Spectral Densities (PSD) and Probability Density Functions (PDF) .

PQLX server writes the results to a MySQL database for quick access

Implementation at INGV-Ancona acquisition center: - PQLX server starts every day by crontab

process- Data extraction tools allow to evaluate noise

levels and statistics about subset of data (in ex., diurnal and nightly data)

- Seismic Noise Probability Density Function (PDF)

TABOO SEISMIC NETWORK:

Seismometer Performance and Site Quality

The stationary background noise is characterized by the highest probability of occurrence (mode)

Mode: stable noise model for each station

5 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

*McNamara, D.E. and R.P. Buland Ambient Noise Levels in the Continental United States Bull. Seism. Soc. Am., 94, 4, 1517-1527, 2004

TABOO SEISMIC NETWORK:

Nearly Real Time Network Performance

6 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

- Extraction of diurnal and nightly PSD every dayby «exPSDhour» PQLX tool

- Evaluation of diurnal and nightly seismic noise mode at each station

- Calculation of Earthquake Magnitude Detection Map from noise modes

TABOO network:

- Excellent detection threshold (negative magnitude)

- Cultural seismic noise affects detection thresholds in daytime but << 1 for the whole network

Diurnal

Nightly

- Earthquake Magnitude Detection Map

Depth Z = 5 Km

TABOO SEISMIC NETWORK:

Network Performance

PQLX Data set:- TABOO area- Surface seismic station- 2 years of data at least

Anomalous low frequency response for ATMC and ATLO station

7 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

- 2 years Noise PDF stack and modes

Noise level Probability in TABOO area

The distribution of seismic noise spans over 30-40 dBbut higher probability values range within 10 dB

8 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

PQLX Data set:- TABOO area- Surface seismic station- 2 years of data at least

- TABOO 2 years Mode Low Noise Model(TB2yMLNM)

Model:The minimum of all the modes at each period (*McNamara and Buland, 2004)

TB2yMLNM represents the minimum of the most occurring noise levels in TABOO area

Diurnal and Nightly Models from diurnal and nightly modes:

Diurnal – Nightly Difference 5.0 ± 2.1 dB between 1 and 25 Hz

TABOO SEISMIC NETWORK:

Network Performance

9 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

- Noisy and quiet stations

The minimum noise model is reference to assess the quality of each station

Area between 10th and 90th percentile of PDF

Station nightly mode

Station diurnal mode

Noisy

Quiet

TABOO SEISMIC NETWORK:

Network Performance

10 / 10Nearly real-time monitoring system TABOO: seismic network activity Marzorati S. and TABOO Group

NERA/REAKT Workshop Zürich March 19-20, 2013______________________________________________________________________________

- Borehole seismic stations

BAT3 borehole setup:Vertical array of seismic (2Hz) sensorsDepth: 0, 50 , 150, 250 m

250 m deep sensor

Winter local microseisms

BAT3 borehole performance (3 month statistic):the BAT3 mode values are smaller than TB2yMLNM at high frequency

Good launch, Lauro!

TABOO SEISMIC NETWORK:

Network Performance