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Maximum entropy spectral characteristics of seismic activity for great earthquakes in China

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Acta Seismologica Sinica

Abstract

The maximum entropy spectral characteristics of seismicity in the seismic enhanced region of 11 great earthquakes is analysed in this paper to seek the difference of seismic period spectral structure between the normal and the abnormal stage of seismic activity in this paper. The results show that, during decades or even one hundred years before great earthquakes, only short periods with 6.5–24.3 years appear, and long ones disappear. Otherwise, long periods with 18.5–38.5 years exist chiefly within the normal stages. Decades years after great earthquakes, the period spectra of seismicity are generally about several or ten years. Then the characteristics of great earthquakes is explained physically by applying the strong body seismogenic model, so a method of studying and predicting great earthquakes is offered.

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Authors and Affiliations

  1. Institute of Geophysics, State Seismological Bureau, 100081, Bei**g, China

    Zhi-** Song & An-Xun Wu

  2. Center for Analysis and Prediction, State Seismological Bureau, 100036, Bei**g, China

    Shi-Rong Mei & Xan Xue

Authors
  1. Zhi-** Song
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  2. Shi-Rong Mei
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  3. An-Xun Wu
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  4. Xan Xue
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Cite this article

Song, ZP., Mei, SR., Wu, AX. et al. Maximum entropy spectral characteristics of seismic activity for great earthquakes in China. Acta Seimol. Sin. 10, 7–14 (1997). https://doi.org/10.1007/s11589-997-0034-y

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  • DOI: https://doi.org/10.1007/s11589-997-0034-y

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