| A discussion on the application of b-value to the prediction of seismic tendency |
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| 作者姓名： | 吴忠良 |
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| 作者单位： | ) Institute of Geophysics，China Seismological Bureau，Beijing 100081，China |
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| 基金项目： | The MOST Project G1998040705. |
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| 摘 要： | It has been recognized for a long time that the b-value in the Gutenberg-Richters fre-quency-magnitude relation (Gutenberg, Richter, 1954) tends to decrease before some of the earth-quakes (LI, et al, 1979, and the references therein). Since the 1980s, study on b-value has caused much attention among seismologists and physicists when b-value was related to the fractal dimen-sion of an earthquake fault (Aki, 1981; King, 1983) and/or the scaling constant in the model of self-organized critical…
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A discussion on the application of b-value to the prediction of seismic tendency |
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| WU Zhong-liang.A discussion on the application of b-value to the prediction of seismic tendency[J].Acta Seismologica Sinica(English Edition),2001,14(5). |
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| Authors: | WU Zhong-liang |
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| Abstract: | In the estimation of seismic tendency, using Gutenberg-Richters b-value and using Hurst exponent are two com-monly used methods. Based on the fractal geometry of earthquake time series, we point out that these two methods correlate to each other. In the perspective of fractional Brownian motion (FBM), an earthquake sequence with b>3/4 and that with b<3/4 have different dynamic properties. |
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| Keywords: | b-value Hurst exponent earthquake prediction earthquake sequence |
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