| 2008年于田Ms7.3地震地表破裂带特征及其构造属性讨论 |
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| 引用本文： | 徐锡伟,谭锡斌,吴国栋,陈建波,沈军,方伟,宋和平.2008年于田Ms7.3地震地表破裂带特征及其构造属性讨论[J].地震地质,2011,33(2):462-471. |
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| 作者姓名： | 徐锡伟 谭锡斌 吴国栋 陈建波 沈军 方伟 宋和平 |
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| 作者单位： | 中国地震局地质研究所国家地震活断层研究中心;新疆维吾尔族自治区地震局; |
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| 基金项目： | 地震行业科研专项“新疆于田7.3级地震与阿什库勒火山综合科学考察”(201008004); 科技部国际科技合作项目(2009DFA21280)共同资助 |
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| 摘 要： | 新疆于田M<‘s>7.3地震发生在西昆仑块体与昆仑-柴达木-祁连块体之间的阿尔金断裂西南端NE向张剪切段邻近区域,也是阿尔金断裂、康西瓦断裂和昆仑断裂带西端玛尔盖茶卡断裂等交会部位,对理解青藏高原的变形及其动力学演化过程具有十分重要的作用.高分辨率卫星影像解译和野外考察表明,于田地震在阿什库勒火山群南部玉龙喀什河源头近...
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| 关 键 词： | 于田Ms7.3地震 地震地表破裂带 同震位移 康西瓦断裂 阿尔金断裂 |
| 收稿时间： | 2011-06-12 |
| 修稿时间： | 2011-06-18 |
SURFACE RUPTURE FEATURES OF THE 2008 YUTIAN M_S 7.3 EARTHQUAKE AND ITS TECTONIC NATURE |
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| XU Xi-wei,TAN Xi-bin,WU Guo-dong,CHEN Jian-bo,SHEN Jun,FANG Wei,SONG He-ping.SURFACE RUPTURE FEATURES OF THE 2008 YUTIAN M_S 7.3 EARTHQUAKE AND ITS TECTONIC NATURE[J].Seismology and Geology,2011,33(2):462-471. |
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| Authors: | XU Xi-wei TAN Xi-bin WU Guo-dong CHEN Jian-bo SHEN Jun FANG Wei SONG He-ping |
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| Affiliation: | XU Xi-wei1) TAN Xi-bin1) WU Guo-dong2) CHEN Jian-bo2)SHEN Jun2) FANG Wei2) SONG He-ping2)1)National Center for Active Fault Studies,Institute of Geology,China Earthquake Administration,Beijing 100029,China2)Earthquake Administration of Xinjiang Uygur Autonomous Region,Urumqi 830011,China |
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| Abstract: | High-resolution satellite image interpretation and field investigation indicate that the surface rupture zone produced by the Yutian MS7.3 earthquake is～25km long along a NS-trending fault at the western piedmont of a snow-covered range at the upper reach of the Yurungongkash River,about 20km south of the Ashikule Volcanoes.The surface rupture zone consists of different striking ruptures with both normal and left-lateral faulting components.The maximum left-lateral and vertical co-seismic slips measured in the field are～1.8m and～2.0m,respectively.Its seismogenic NS-trending fault belongs to the secondary structure at the NE-trending tensile area of the southwestern end of the Altyn Tagh Fault,which conforms to the eastward escape of the Kunlun-Qaidamu-Qilian block,relative to the Western Kunlun block. |
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| Keywords: | Yutian MS 7 3 earthquake earthquake surface rupture zone co-seismic slip Kangxiwa Fault Altyn Tagh Fault |
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