| 2003年岷县5.5级地震地震学前兆特征及预报意义 |
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| 引用本文： | 李亚荣,荣代潞,韩晓明.2003年岷县5.5级地震地震学前兆特征及预报意义[J].西北地震学报,2007,29(2):150-155. |
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| 作者姓名： | 李亚荣 荣代潞 韩晓明 |
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| 作者单位： | 中国地震局兰州地震研究所,甘肃兰州,730000 |
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| 基金项目： | 国家自然科学基金;地震科学联合基金;中国地震局兰州地震研究所项目 |
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| 摘 要： | 研究了2003年甘肃岷县5.5级地震的地震学前兆的变化特征,显示尾波Qc值和地震空间相关长度在震前都呈增长趋势,用幂次率关系对这种变化进行了拟合。结果为利用尾波Q值和地震空间相关长度的监测资料建立预测地震发生时间的方法和指标打下了基础。
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| 关 键 词： | 岷县5.5级地震 时间预测 尾波Qc值 相关长度 |
| 文章编号： | 1000-0844（2007）02-0150-06 |
| 修稿时间： | 2006-06-01 |
The Seismological Precursor Characteristics before Minxian ML5.5 Earthquake in 2003 and Its Significance for Earthquake Prediction |
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| LI?Ya-rong,RONG?Dai-lu and HAN?Xiao-ming.The Seismological Precursor Characteristics before Minxian ML5.5 Earthquake in 2003 and Its Significance for Earthquake Prediction[J].Northwestern Seismological Journal,2007,29(2):150-155. |
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| Authors: | LI?Ya-rong RONG?Dai-lu and HAN?Xiao-ming |
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| Institution: | Lanzhou Institute of Seismology, CEA, Lanzhou 730000, China |
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| Abstract: | In the paper,the characteristics of seismological precursors(seismic spatial correlation length and coda Qc) associated with the earthquake(M=5.5) occurred in Minxian,Gansu Province,on Nov.13,2003,are studied.The result shows an increasing trend of the both parameters before the earthquake.And a power exponent relation is used to fit the increasing variation form of the parameters.The study provids a basis for creating a method and finding indexes to predict earthquake occurrence time by using the monitored seismic spatial correlation length and coda Qc. |
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| Keywords: | Minxian ML5 5 earthquake Time prediction Coda Qc Correlation length |
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