The variation characteristic of information entropy of water radon in Yishui before and after Heze earthquake M5.9
ZHANG Zhao-dong 1, DONG Chuan-fu 1, Liu Zhang-zeng 2 (1 Seismological Bureau of Shangdong Province,Jinan 250014,China; 2 The First Middle School of Shen County,Shen County 252400,Shangdong Province,China)
After observing and analyzing for many years, we know now that the rainfall is the greatest disturbance affecting the variation of water radon in Yishui spring. With "memory" lag influence, the disturbance is difficult to be removed by using general analysis. But in this paper, the disturbance can be better removed with convolution integral method. The variation characteristic of Information Entropy of water radon in Yishui before and after Heze earthquake M5 9 is analyzed. The relationship between the information entropy and the adjustment of regional stress field is discussed.