| 芦山M7．0地震余震分布特征 |
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| 引用本文： | 蔡一川,魏娅玲,苏金蓉.芦山M7．0地震余震分布特征[J].地震地磁观测与研究,2014(3):83-88. |
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| 作者姓名： | 蔡一川 魏娅玲 苏金蓉 |
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| 作者单位： | 四川省地震局,中国成都610041 |
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| 基金项目： | 国家自然科学基金重大项目（编号：41090292）资助 |
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| 摘 要： | 使用双差定位方法，对2013年4月20日08时02分芦山 M 7．0地震后近10天的余震进行重新定位，获得精度较高的重定位结果；在此基础上，对余震空间分布特征进行研究，推测芦山主震的发震断层可能为大川-双石主断裂东侧的一条次级隐伏逆冲断层。
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| 关 键 词： | 芦山地震 龙门山断裂带 双差定位法 余震分布特征 |
About the aftershock distribution characteristics of Lushan M 7.0 earthquake |
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| Cai Yichuan,Wei Yaling,Su Jinrong.About the aftershock distribution characteristics of Lushan M 7.0 earthquake[J].Seismological and Geomagnetic Observation and Research,2014(3):83-88. |
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| Authors: | Cai Yichuan Wei Yaling Su Jinrong |
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| Institution: | (Earthquake Administration of Sichuan Province, Chengdu 610041, China) |
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| Abstract: | The double difference location method is used in this stady to relocate the aftershocks in nearly 10 days after Lushan M 7.0 earthquake at 8 o′clock 2 minutes on April 20,2013.The relocation results with higher accuracy are obtained.And on this basis,the space distribution features of aftershocks are studied,the inferred seismogenic fault may be a secondary concealed thrust fault on the east side of the Dachuan-Shuangshi main fault. |
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| Keywords: | lushan earthquake Longmenshan fault zone double difference location method aftershock distribution characteristics |
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