| 2010年青海玉树7.1级地震发生的构造背景及其动力学分析 |
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| 引用本文： | 程建武,董治平,郑卫平,郭雪莲.2010年青海玉树7.1级地震发生的构造背景及其动力学分析[J].内陆地震,2013(3):195-204. |
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| 作者姓名： | 程建武 董治平 郑卫平 郭雪莲 |
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| 作者单位： | [1]甘肃省地震局,甘肃兰州730000 [2]兰州大学,甘肃兰州730000 |
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| 基金项目： | 甘肃省地震局（所）地震科技发展基金（2012M06）和国家自然科学基金（批准号：41202j29）联合资助 |
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| 摘 要： | 为了解2010年4月14日青海玉树7.1级地震活动背景和构造背景,探讨其发震的动力学过程,综合历史和现代地震资料,通过对玉树地震发震前的青藏高原东部地震活动特征分析,探讨了地震活动的大尺度时-空图像与玉树地震孕育发生的关系,研究其发震构造、震源机制解、余震分布和余震序列特征,从而综合探讨玉树地震发生的动力学背景和过程.结果表明,玉树地震的发生不是一个偶然事件,而是地震活动和构造运动的必然结果,是地震孕育和地球动力学过程的必然表现.
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| 关 键 词： | 玉树7 1级地震 地震活动 发震构造 动力学 活动断裂带 |
THE TECTONIC SETTING AND DYNAMIC PROCESS ANALYSIS OF YUSHU EARTHQUAKE WITH MS7.1 IN QINGHAI PROVINCE IN 2010 |
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| CHENG Jian-wu,DONG Zhi-ping,ZHENG Wei-ping,GUO Xue-lian.THE TECTONIC SETTING AND DYNAMIC PROCESS ANALYSIS OF YUSHU EARTHQUAKE WITH MS7.1 IN QINGHAI PROVINCE IN 2010[J].Inland Earthquake,2013(3):195-204. |
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| Authors: | CHENG Jian-wu DONG Zhi-ping ZHENG Wei-ping GUO Xue-lian |
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| Institution: | 1. Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China ; 2. Lanzhou University, Lanzhou 730000, Gansu, China) |
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| Abstract: | In order to understand the seismic activity and tectonic background of Yushu earthquake with Ms7.1 on 14th April, 2010 in Qinghai Province, and to explore the dynamic process of the mainshock, using the historical and modem seismic data, the authors analyzed the earthquake activity characteristics of the eastern Tibetan Plateau before Yushu earthquake, discussed the relationship between the spatial and temporal images characteristics of the large-scale seismic activity and the mainshock and researched the seismogenic structure, focal mechanism solutions and aftershock distribution and aftershock sequence features of the mainshock, which can help us to study the dynamic background and process of Yushu earthquake comprehensively. The results showed that the occurrence of Yushu earthquake is not an accident, but the inevitable result of the seismic activity and tectonic movements ; moreover it is inevitable performance of seismogenic and geodynamic processes. |
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| Keywords: | Yushu earthquake with Ms7 1 Seismic activity Seismogenic structure Geodynamic Active fault belt |
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