| 2013年前郭M5.8级强震群序列特征分析 |
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| 引用本文： | 陈作全,武成智,张淑洁,肖玉明,王迪.2013年前郭M5.8级强震群序列特征分析[J].防灾减灾学报,2015(3):11-15. |
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| 作者姓名： | 陈作全 武成智 张淑洁 肖玉明 王迪 |
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| 作者单位： | 1. 敦化地震台，吉林 敦化，133700;2. 长白山火山监测站，吉林 安图，133600;3. 前郭县地震局，吉林 前郭，131100 |
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| 摘 要： | 基于2013年吉林前郭M5.8级强震群序列资料,分析其余震序列空间分布、演化特征、测震学指标b值及震源机制特征等。结果发现,前郭强震群序列空间位置高度集中在长9 km,宽5 km的范围内,余震沿北西向分布。序列中M4.0以上地震呈连发特征,M2.0~3.0地震缺乏,余震主要集中在M1.0级以下,余震序列b值较低且介于0.3~0.4之间,M5.0以上地震震源机制以逆冲为主,兼具少量走滑分量。
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| 关 键 词： | 前郭强震群 余震序列 震源机制 |
SEQUENCE ANALYSIS OF STRONG EARTHQUAKE GROUP IN THE M5.8 IN 2013 |
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| Abstract: | Based on Strong earthquake swarm sequence data of Jilin Province Qianguo County in October 31, 2013, We analysis the spatial distribution characteristic of aftershock, earthquake sequence evolution, seismometry b-value and focal mechanism etc..The conclusion can be drawed,Qian Guo earthquake swarm sequence and the aftershocks space is highly concentrated in the 9 km long,5 km wide in scope, the distribution is along the North West direction.The strong earthquake in the sequence show a characteristics of continuous occurrence, aftershocks are mainly concentrated in the 0~1,and with a low b value between 0.3~0.4. |
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| Keywords: | Qianguo strong earthquake swarm aftershocks sequence focal mechanism |
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