| Application of scaling-rule theory in crustal rock fracture to studying characteristics of seismological precursors associated with M=6.1 Shandan-Minle earthquake |
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| 作者姓名： | 荣代潞 李亚荣 韩晓明 |
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| 作者单位： | Earthquake Institute of Lanzhou, China Earthquake Administration, Lanzhou 730000, China |
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| 基金项目： | National Natural Science Foundation of China （40574026）. Contribution No. LC20060008, Earthquake Institute of Lanzhou, China Earthquake Administration. Acknowledgements We would like to express our thanks to the reviewers for their valuable opinions and suggestions and ZHU Xin-yun of Earthquake Administration of Zhejiang Province for providing the calculation program of coda Qc on the MATLAB platform. |
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| 摘 要： | In the paper, we introduce Allegre＇s scaling-rule theory of rock fracture and the probability to develop a method for predicting earthquake occurrence time on its basis. As an example, we study the characteristics of seismological precursors （seismic spatial correlation length and coda Qc） associated with the earthquake （M=6.1） occurred in Shandan-Minle, Gansu Province. The results show an increasing trend of seismic spatial correlation length and coda Qc before the earthquake. And a power exponent relation is used to fit the increasing variation form of these two parameters. The study has provided a basis for creating a method and finding indexes to predict the earthquake occurrence time by using the monitored seismic spatial correlation length and coda Qc.
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| 关 键 词： | 地震 时间预报 岩石 预报方法 |
| 文章编号： | 1000-9116（2006）04-0472-11 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2006-02-06 |
Application of scaling-rule theory in crustal rock fracture to studying characteristics of seismological precursors associated with M=6.1 Shandan-Minle earthquake |
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| RONG Dai-lu,LI Ya-rong,HAN Xiao-ming.Application of scaling-rule theory in crustal rock fracture to studying characteristics of seismological precursors associated with M=6.1 Shandan-Minle earthquake[J].Acta Seismologica Sinica(English Edition),2006,19(4):472-482. |
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| Authors: | RONG Dai-lu LI Ya-rong HAN Xiao-ming |
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| Institution: | Earthquake Institute of Lanzhou, China Earthquake Administration, Lanzhou 730000, China |
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| Abstract: | In the paper, we introduce Allegre’s scaling-rule theory of rock fracture and the probability to develop a method for predicting
earthquake occurrence time on its basis. As an example, we study the characteristics of seismological precursors (seismic
spatial correlation length and coda Q
c) associated with the earthquake (M=6.1) occurred in Shandan-Minle, Gansu Province. The results show an increasing trend of seismic spatial correlation length
and coda Q
c before the earthquake. And a power exponent relation is used to fit the increasing variation form of these two parameters.
The study has provided a basis for creating a method and finding indexes to predict the earthquake occurrence time by using
the monitored seismic spatial correlation length and coda Q
c.
Contribution No. LC20060008, Earthquake Institute of Lanzhou, China Earthquake Administration. |
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| Keywords: | earthquake time prediction M=6 1 Shandan-Minle earthquake coda Qc correlation length |
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