Scale-free statistics of time interval between successive earthquakes
Scale-free statistics of time interval between successive earthquakes
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DOI：
10.1016/j.physa.2004.10.040
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发表时间：
2005-05-15
影响因子：
3.3
通讯作者：
Suzuki, N
中科院分区：
文献类型：
--
作者：
Abe, S;Suzuki, N
通过分析美国加利福尼亚和日本的地震时间序列资料，研究了平静时间的统计性质，即任意震级连续地震之间的时间间隔。发现静时服从Zipf-Mandelbrot幂律，表现出地震现象新的无标度性质。考察了幂律分布的指数对幅度阈值的依赖性。随着阈值的增加，分布的尾部趋于变长，这表明在统计上估计地震的时间间隔有困难。(c) 2004 Elsevier B.V.版权所有
The statistical property of the calm times, i.e., time intervals between successive earthquakes with arbitrary values of magnitude, is studied by analyzing the seismic time series data in California and Japan. It is found that the calm times obey the Zipf-Mandelbrot power law, exhibiting a new scale-free nature of the earthquake phenomenon. Dependence of the exponent of the power-law distribution on threshold for magnitude is examined. As threshold increases, the tail of the distribution tends to become longer, showing difficulty in statistically estimating time intervals of earthquakes. (c) 2004 Elsevier B.V. All rights reserved.