| 断层活动协调比计算方法的改进及震例分析 |
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| 引用本文： | 李瑞莎.断层活动协调比计算方法的改进及震例分析[J].中国地震研究,2014,28(1):54-61. |
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| 作者姓名： | 李瑞莎 |
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| 作者单位： | 中国地震局第二监测中心, 西安市西影路316号 710054 |
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| 基金项目： | This project is funded by the Youth Seismic Regime Tracking Project in the Year of 2012，China Earthquake Administration ( 2012020203 ) ，the Youth Seismic Regime Tracking Project in the Year of 2011 ( 2011020207 ) and the National Key Technology R＆D Program of the 12th“Five － year Plan”，China． |
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| 摘 要： | According to the concept of the fault motion coordination ratio （FCR） , this paper discusses the effect of the starting point on the result of FCR calculation and puts forward the calculation method for FCR using the sliding window and the index for evaluating the dispersion. Earthquake cases analysis shows that at the Lijiang site across the fault： the FCR value varied greatly and its distribution was dispersive before the Ms7.0 Lijiang earthquake, while the value was stable and less dispersive after the earthquake, which reflects the strain accumulation of the fault during the seismogenic process and the poor movement coordination between the motion of the three components. After the earthquake, the fault was in a free activity state, the accumulated strain energy released, and the movement of the three components was coordinated mutually. At present, FCR dispersion of Lijiang is at a low value, and fault strain accumulation is at a low level.
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| 关 键 词： | 断层运动 计算结果 震例分析 丽江地震 比例 应变积累 运动协调 组成部分 |
| 收稿时间： | 2012/9/14 0:00:00 |
Improvement of Computation Method of Fault Motion Coordination Ratio and Analysis of Earthquake Cases |
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| Li Ruisha.Improvement of Computation Method of Fault Motion Coordination Ratio and Analysis of Earthquake Cases[J].Earthquake Research in China,2014,28(1):54-61. |
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| Authors: | Li Ruisha |
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| Institution: | [1]Second Crust Monitoring and Application Center, CEA, Xi＇an 710054, China [2]Earthquake Administration of Liaoning Province, Shenyang 110031, China |
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| Abstract: | Lijiang earthquake Fault motion coordination ratio （FCR） Cross-faultmeasurement Dispersion |
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| Keywords: | Lijiang earthquake Fault motion coordination ratio ( FCR) Cross-fault measurement Dispersion |
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