An Examination of Telemetry Delay in the Central Weather Bureau Seismic Network

  • Author(s): Chien-Hsin Chang, Yih-Min Wu, Da-Yi Chen, Tzay-Chyn Shin, Tai-Lin Chin, and Wen-Yen Chang
  • DOI: 10.3319/TAO.2011.11.29.01(T)
  • Keywords: Earthquake Seismic network Earthquake location Taiwan
  • Citation: Chang, C.-H., Y.-M. Wu, D.-Y. Chen, T.-C. Shin, T.-L. Chin, and W.-Y. Chang, 2012: An examination of telemetry delay in the Central Weather Bureau Seismic Network. Terr. Atmos. Ocean. Sci., 23, 261-268, doi: 10.3319/TAO.2011.11.29.01(T)

Timing is a key factor for an earthquake monitoring system and may affect the determination of earthquake location and related studies. In this work, we examined the telemetry delay within the Central Weather Bureau Seismic Network (CWBSN) from 1991 to 2011 and found that the timing systems, at most of the stations in the CWBSN, could contain an approximate 0.2 sec telemetry delay. Based on our results, the telemetry delay was found to cause a 0.2 sec shift in earthquake origin times during the earthquake location process. However, the delay may not cause a significant difference in earthquake location results.

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