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Zhang Hongcai, Jin Xing. 2014: Reliability research of earthquake early warning information. Acta Seismologica Sinica, 36(4): 615-631. DOI: 10.3969/j.issn.0253-3782.2014.04.008
Citation: Zhang Hongcai, Jin Xing. 2014: Reliability research of earthquake early warning information. Acta Seismologica Sinica, 36(4): 615-631. DOI: 10.3969/j.issn.0253-3782.2014.04.008
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Reliability research of earthquake early warning information

  • 1.

    Earthquake Administration of Fujian Province, Fuzhou 350003, China

  • 2.

    Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150008， China

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  • Received Date: July 29, 2013
  • Revised Date: November 12, 2013
  • Published Date: June 30, 2014
    Graphical Abstract
    • Abstract
  • The earthquake early warning system (EEWs) has highly requirements for information’s timeliness and accuracy. In this paper, we proposed an information reliability test method for EEWs. Based on the EEWs’ application features, this paper proposed four information reliability tests, which are signal to noise ratio (SNR) test, characteristic parameters (such as τc and Pd) compatibility test, characteristic parameters coordination test and EEW location reliability test. For each test, a quantitative calculation formula is defined, and then the reliability of the entire information can be calculated. 4737 three-component acceleration records of 444 seismic events from KiK-net in Japan were used in order to test and verify the applicability of our method. The results show that, by taking the reliability tests method proposed in this paper, the accuracy and reliability of the EEW information are improved, and then “missed alarms” or “false alarms” are reduced.
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    • References (38)
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