| ?????Ms8.1??????????????????????? |
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| 引用本文： | 方颖,江在森,顾国华.?????Ms8.1???????????????????????[J].大地测量与地球动力学,2008,28(4):25-30. |
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| 作者姓名： | 方颖 江在森 顾国华 |
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| 作者单位： | 中国地震局地震预测研究所,北京,100036 |
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| 基金项目： | 国家自然科学基金，基本科研业务专项 |
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| 摘 要： | ????GPS?????????????????????????????????????????????????????????????????GPS????????????????????Χ????λ??????к??????????????????????????????????????????????????????????????ε?????????????ó????3???????????????????????????η?Χ????????????????λ???仯???????????????????Χ????????????????飬???????????????????С???????????λ????е??????????????????????????ο????????????????????????????????????????ο??嶫????γ????????η?????????????硪??????????????γ????????????????????????ο???????????ο??嶫????????????????й????????????
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| 关 键 词： | GPS ?????????? ???γ? ????????????(PCA) ??????? |
INFLUENCE OF KUNLUN MOUNTAIN Ms8.1 EARTHQUAKE ON CRUSTAL MOVEMENT IN SICHUAN-YUNNAN REGION |
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| Fang Ying,Jiang Zaisen,Gu Guohua.INFLUENCE OF KUNLUN MOUNTAIN Ms8.1 EARTHQUAKE ON CRUSTAL MOVEMENT IN SICHUAN-YUNNAN REGION[J].Journal of Geodesy and Geodynamics,2008,28(4):25-30. |
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| Authors: | Fang Ying Jiang Zaisen Gu Guohua |
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| Institution: | Institute of Earthquake Science, CEA, Beijing 100036 |
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| Abstract: | The correlation between crustal deformation in Sichuan-Yunnan region and Kunlun Mountain Ms8.1 earthquake was analyzed by use of GPS data.The results showed that there is good correlation between the displacements at a part of GPS stations in Sichuan-Yunnan area and at stations around the epicenter of the Kunlun Mountain Ms 8.1 earthquake.At the same time,the space-time process of deformation field of the Kunlun Mountain Ms8.1 earthquake in this region was analyzed with the principal component analysis(PCA).The conclusion are as follows.The deformation caused by Ms8.1 earthquake is extensive,whose affect is mostly NS displacement.The affected area are mostly in Northwest Sichuan block,specially near its south boundary such as Eryuan faults and Xiaojinhe faults,but,there is almost no effect in mid-Yunnan block.The effect weakens obviously in the north and east areas of Sichuan-Yunnan block.An obvious deformation boundary appears in the east boundaries of Sichuan-Yunnan block,but little deformation difference appeares in its west boundaries(Lancangjiang faults).The deformation caused by Kunlun Mountain strong earthquake probably transfer to the south-east words along the arc shearing tectonic faults,mainly along the east boundaries of Sichuan-Yunnan block. |
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| Keywords: | GPS Kunlun Mountain Ms8 1 earthquake deformation field principle component analysis(PCA) Sichuan-Yunnan region |
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