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| 引用本文： | 刘巧霞,沙成宁,杨卓欣,段永红.����7.1�������������¶�λ����ʱ�շֲ������о�[J].大地测量与地球动力学,2012,32(4):5-9. |
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| 作者姓名： | 刘巧霞 沙成宁 杨卓欣 段永红 |
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| 作者单位： | 1. 中国地震局地球物理勘探中心,郑州,450002
2. 青海省地震局,青海,810001 |
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| 基金项目： | 国家自然科学基金(41040002);地震科技星火计划青年基金项目(XH12067Y);中国地震局地球物理勘探中心科技论著201101 |
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| 摘 要： | ??????????λ????2010-04-14??12-31?????????????????????????????λ??????????????????????????????????????????仯?й?????????????????????????????????????????????????????????????????????????????????????????????????????????????????-??????????????????????????????????????????-????????й?????????????????????????????????????????桱?й??
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| 关 键 词： | ????Ms7.1???? ?????λ ??????λ?? ?????? ?????? |
RELOCATION OF AFTERSHOCKS OF YUSHU Ms7.1 EARTHQUAKE AND THEIR SPATIAL DISTRIBUTION CHARACTERISTICS |
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| Liu Qiaoxia
,
Sha Chengning
,
Yang Zhuoxin
,
Duan Yonghong.RELOCATION OF AFTERSHOCKS OF YUSHU Ms7.1 EARTHQUAKE AND THEIR SPATIAL DISTRIBUTION CHARACTERISTICS[J].Journal of Geodesy and Geodynamics,2012,32(4):5-9. |
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| Authors: | Liu Qiaoxia Sha Chengning Yang Zhuoxin Duan Yonghong |
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| Affiliation: | 1) 1)Geophysical Exploration Center,CEA,Zhengzhou 4500022)Earthquake Administration of Qinghai Province,Xining 810001 |
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| Abstract: | A part of the aftershocks of Yushu earthquake occurred from April 14 to December 31,2010,were relocated by means of the double difference algorithm.These following conclusions can be obtained from the results.The area changing of stress growth led to aftershocks distribution shifting over time.The aftershock distribution presents spatial inhomogeneity.On both sides of Longbao,the intensity,width and the focal depth of the aftershocks are different.The seismogenic fault of aftershocks of Yushu earthquakes is the northern branch of Garzê-Yushu fault zone,i.e.Yushu-Longbao fault,which dips to northeast with high-angle left-lateral strike-slip.To the northwest of Longbao town,the intensively distributed aftershock group is not only due to Yushu-Longbao fault zone,the more important seismogenesis is that the northwest "weak plane" is nearly vertical to the fault. |
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| Keywords: | Yushu Ms7 1 earthquake relocation of aftershocks double difference algorithm spatial distribution of aftershocks seismotectonic |
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