| 2015年内蒙古阿拉善左旗5.8级地震序列震源深度对比分析 |
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| 引用本文： | 李彬,魏建民,张浩鸣,刘永梅,刘芳,张帆,郝亮.2015年内蒙古阿拉善左旗5.8级地震序列震源深度对比分析[J].地震地磁观测与研究,2018,39(4):38-46. |
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| 作者姓名： | 李彬 魏建民 张浩鸣 刘永梅 刘芳 张帆 郝亮 |
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| 作者单位： | 中国呼和浩特 010010 内蒙古自治区地震局 |
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| 基金项目： | 中国地震局监测、预测、科研三结合课题（项目编号：CEA-JC/3JH-1605031） |
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| 摘 要： | 选取2015年阿拉善左旗5.8级地震发生后，中国地震科学台阵探测-南北地震带北段项目、中国地震局地球物理研究所中国地震科学探测台阵数据中心及内蒙古测震台网记录到此次地震序列的78次地震波形资料，采用单纯型法、Hyposat法、双差定位方法、确定性方法（PTD方法）、CAP地震矩张量反演法重新测定深度，并将所获深度值进行对比分析，结果发现，确定性方法（PTD方法）和双差定位方法较符合震源区构造特征的深度测定，单纯型法、Hyposat法效果不佳，CAP法适用于较大地震；地震序列平均震源深度为（15.54±8）km。
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| 关 键 词： | 地震序列 震源深度 对比分析 |
Contrast analysis of focal depth of Alagxa Left Banner M5.8 earthquake sequence in Inner Mongolia, 2015 |
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| Li Bin,Liu Yongmei,Wei Jianmin,Liu Fang,Zhang Fan,Hao Liang.Contrast analysis of focal depth of Alagxa Left Banner M5.8 earthquake sequence in Inner Mongolia, 2015[J].Seismological and Geomagnetic Observation and Research,2018,39(4):38-46. |
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| Authors: | Li Bin Liu Yongmei Wei Jianmin Liu Fang Zhang Fan Hao Liang |
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| Institution: | Earthquake Agency of Inner Mongolia Autonomous Region, Hohhot 010051, China |
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| Abstract: | After the M5.8 earthquake in Alagxa Left Banner in 2015, the 78 seismic data of the earthquake sequence were recorded by the China Seismological Science array, the north of the north and South seismic belt, the Geophysical Research Institute of China Earthquake Administration, the data center of the seismological scientific exploration array in China and the Inner Mongolia seismological network, focal depth were redefined by simple method, Hyposat method, double difference location method, PTD method and CAP method. The contrast shows that the results of PTD and double difference location method is in line with the characteristics of tectonic, simple meethod and Hyposat method works poorly, and CAP is suitable for large earthquakes. The average focal depth of the earthquake sequence is (15.54 ±8) km. |
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| Keywords: | earthquake sequence focal depth contrast analysis |
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