Seismic Network Operations

IU TRIS

Tristan da Cunha

IU TRIS commences operations on: 2004,063

Country Flag
Host: British Geological Survey
Latitude: -37.068
Longitude: -12.315
Elevation: 60
Datalogger: Q680
Broadband: STS-1V/VBB
Accelerometer: FBA-23
Telemetry Status at the NEIC: Last Data In Less Than 10 Minutes
Station Photo Station Photo Station Photo 

Vault Condition: STS-2, STS-1 vertical and FBA-23 are located in a very shallow concrete vault.

Location CodeChannel CodeInstrumentFlagsSample RateDipAzimuthDepth
00BH1Streckeisen STS-2.5CG40.000.000.002.00
00BH2Streckeisen STS-2.5CG40.000.0090.002.00
00BHZStreckeisen STS-2.5CG40.00-90.000.002.00
00HH1Streckeisen STS-2.5TG100.000.000.002.00
00HH2Streckeisen STS-2.5TG100.000.0090.002.00
00HHZStreckeisen STS-2.5TG100.00-90.000.002.00
20HN1Kinemetrics FBA ES-T EpiSensor AccelerometerTG100.000.000.002.00
20HN2Kinemetrics FBA ES-T EpiSensor AccelerometerTG100.000.0090.002.00
20HNZKinemetrics FBA ES-T EpiSensor AccelerometerTG100.00-90.000.002.00
31LDOCI/PAS pressure sensorCW1.000.000.002.00
30LDOlower quality chip sensor in Setra boxCW1.000.000.002.00
00LH1Streckeisen STS-2.5CG1.000.000.002.00
00LH2Streckeisen STS-2.5CG1.000.0090.002.00
00LHZStreckeisen STS-2.5CG1.00-90.000.002.00
20LN1Kinemetrics FBA ES-T EpiSensor AccelerometerCG1.000.000.002.00
20LN2Kinemetrics FBA ES-T EpiSensor AccelerometerCG1.000.0090.002.00
20LNZKinemetrics FBA ES-T EpiSensor AccelerometerCG1.00-90.000.002.00
00VH1Streckeisen STS-2.5CG0.100.000.002.00
00VH2Streckeisen STS-2.5CG0.100.0090.002.00
00VHZStreckeisen STS-2.5CG0.10-90.000.002.00
00VMUStreckeisen STS-2.5CH0.100.000.002.00
00VMVStreckeisen STS-2.5CH0.100.000.002.00
00VMWStreckeisen STS-2.5CH0.100.000.002.00
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  1. Current Issues
    Station is still down. We have shipped equipment and CTBTO personnel are planning on upgrading to Q330 and restoring telemetry this year.
  2. 2014-09-25
    Spiking present on strong motion channels. Timing at the station was bad from Aug 2012 through April 2013 due to a bad GPS antenna. The 00 channels are currently not transmitting. Telemetry has failed.
  3. 2012-06-08
    Restored telemetry which was lost on 31 January 2012 due to a failed power supply.