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SIGNIFICANCE OF SEISMICALLY ACTIVE INFORMATION ENTROPY AND TIME-SPACE FRACTIONAL DIMENSION IN EARTHQUAKE PREDICTION

Bai Chaoying Zhu Lingren Wang Haitao Zhou Shiyong(Seismologtcal Bureau of Xiajiang Uygur Autonomous Region)  
This paper selected Wuqia area as the research region where is the seismically active region of strong earthquakes in Xinjiang region. Through time-space zone analysis, five different methods such as synthetic lack information quantity, synthetic information entropy, information entropy, capacity dimension and information dimension were used to trace and study the three strong earthquakes occurred in Wuqia area from 1980 to 1988. Results show that either from the viewpoint of entropy (uniform degree) or from the viewpoint of fractional dimension number (ordered degree), the entropy decreasing (dimension drop) process is clear before strong events. Studies show that such entropy decreasing (dimension drop) process is probubly a characteristic physical quantity of the focal body of strong-shocks which is in the critical rupture. Therefore, it can be regarded as a method for strong earthquake prediction and dynamic monitoring of major risk regions.
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