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F. T. Wuup, HAN DAYUup2com sh adva. 1983: PROCESSING THREE KINDS OF DEFORMATION DATA OF THE DAHUICHANG STATION BEFORE AND AFTER TANGSHAN EARTHQUAKE BY THE MULTICHANNEL WIENER FILTERING METHOD. Acta Seismologica Sinica, 5(1): 31-38.
Citation: F. T. Wuup, HAN DAYUup2com sh adva. 1983: PROCESSING THREE KINDS OF DEFORMATION DATA OF THE DAHUICHANG STATION BEFORE AND AFTER TANGSHAN EARTHQUAKE BY THE MULTICHANNEL WIENER FILTERING METHOD. Acta Seismologica Sinica, 5(1): 31-38.
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PROCESSING THREE KINDS OF DEFORMATION DATA OF THE DAHUICHANG STATION BEFORE AND AFTER TANGSHAN EARTHQUAKE BY THE MULTICHANNEL WIENER FILTERING METHOD

  • 1. Department of Geologic Science, State University of New York at Binghamton; 2. Centre of Seismic Analysis and Earthquake Prediction, State Seismological Bureau

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  • Published Date: August 31, 2011
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    • Abstract
  • The annual changes of three kinds of deformation data in Dahuichang are obviously related to the changes of rainfall and temperature, the latter disturbs the significant signals in the varied curves to some extent. However, the interferences are far from being enough to obscure the remarkable changes started since 1975 before the Tangshan Earthquake. It is difficult to determine the amplitude and onset of the anomalies because of the existence of the interferring factors due to rainfall and temperature changes.We adopt mulit-channel Wiener filtering method to predict the output of the data (such as shortline levelling, watertube tilt and extensometer) by the input (rainfall and temperature). The difference, between the predicted output and the observed data (prediction error) is the significant signals that we desire.The anomalous change of shortline levelling started at Dahuichang in April, 1975, just one year and a little more before the Tangshan Earthquake. Obviously short-term anomalies had been observed about three months before the earthquake. The total amplitude of anomaly is about 2mm (the base line of the short levelling is 26 meters). The anomalies show that the Pabaoshan fault was thrusting before the Tangshan. Earthquake.
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    • References (1)
  • [1] Ghang, Guomin and Jingnan Qiou, Analysis of the process of preparation and the medium——term precursors of the 1976 Tangshan Earthquake (M=7.8), International Symposium on Earthquake Prediction, Paris, 1979.

    [2] P. G. Jennings, Earthquake Engineering and Hazards Redluctian in Ghina, National Academy of Sciences, Washington, D. C. 1980.

    [3] E. A. Robinaon, StatSatical Communication and Detection, Charles Griffin and Co. Ltd., London.1967.

    [4] E. A. Robinson, Multichannel Time Series Analysis with Digital Computer Programs, Holden——Day,Inc. San Francisco, 1967.

    [5] Y. Ishikawa, and T. Miyatake, Application of the Wiener's predictive filter to the records of crustal deformations and seiamicity, Ziain (in Japanese), 31, 73——86, 1978.

    [6] F. T. Wu, and W. J. Wu, 8eismicity time aeries analysis, Symposium on Mathematical Geophysics, Caracas, Venezuela, 1978.

    [7] 陈运泰,黄立人等,用大地测量资料反演的1976年唐山地震的位错模式,地球物理学报,22, 3, 201——217,1979.

    [8] 李方全,王连捷华北地区地应力测量,地球物理学报,22,1, 1——8,1979.

    [9] 王宋贤,郑东炎等,北京地区断层的活动,地珠物理学报,21, 4, 269——277, 1978.

    [10] C. B. Raleigh, G. Bennett, H. Qraig, T. Hanks, P. Molnar, A. Nur, J. Savage, C. Seholz, R. Zurner, and F. T. Wu, The Prediction of Haieheng Earthquake, Trans. Am. Geophys. Union, 58, 236——272, 1977.

    [1] Ghang, Guomin and Jingnan Qiou, Analysis of the process of preparation and the medium——term precursors of the 1976 Tangshan Earthquake (M=7.8), International Symposium on Earthquake Prediction, Paris, 1979.

    [2] P. G. Jennings, Earthquake Engineering and Hazards Redluctian in Ghina, National Academy of Sciences, Washington, D. C. 1980.

    [3] E. A. Robinaon, StatSatical Communication and Detection, Charles Griffin and Co. Ltd., London.1967.

    [4] E. A. Robinson, Multichannel Time Series Analysis with Digital Computer Programs, Holden——Day,Inc. San Francisco, 1967.

    [5] Y. Ishikawa, and T. Miyatake, Application of the Wiener's predictive filter to the records of crustal deformations and seiamicity, Ziain (in Japanese), 31, 73——86, 1978.

    [6] F. T. Wu, and W. J. Wu, 8eismicity time aeries analysis, Symposium on Mathematical Geophysics, Caracas, Venezuela, 1978.

    [7] 陈运泰,黄立人等,用大地测量资料反演的1976年唐山地震的位错模式,地球物理学报,22, 3, 201——217,1979.

    [8] 李方全,王连捷华北地区地应力测量,地球物理学报,22,1, 1——8,1979.

    [9] 王宋贤,郑东炎等,北京地区断层的活动,地珠物理学报,21, 4, 269——277, 1978.

    [10] C. B. Raleigh, G. Bennett, H. Qraig, T. Hanks, P. Molnar, A. Nur, J. Savage, C. Seholz, R. Zurner, and F. T. Wu, The Prediction of Haieheng Earthquake, Trans. Am. Geophys. Union, 58, 236——272, 1977.
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