| Relationship between the Pre-existing Active Kunlun Fault and Co-seismic Surface Ruptures Produced by the 2001 Mw 7．8 Central Kunlun Earthquake，China |
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| 作者姓名： | LIN Ai-ming |
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| 作者单位： | Institute of Geosciences，Faculty of Science，Shizuoka University，836 Ohya，Shizuoka 422-8529，Japan |
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| 基金项目： | ScienceProjectoftheMinistyofMainEducation，Culture，sport，SienceandTechnologyofJapan(NO .14 40 3 0 0 9forA .Lin) |
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| 摘 要： | Field investigations allow to constrain the co-seismic surface rupture zone of ～400km with a strike-slip up to 16．3 m associated with the 2001Mw 7．8 Central Kunlun earthquake that occurred along the western segment of the Kunlun fault，northern Tibet．The co-seismic rupture structures are almost duplicated on the pre-existing fault traces of the Kunlun fault．The deformational characteristics of the co-seismic surface ruptures reveal that the earthquake had a nearly pure strike-slip mechanism．Theg eologic and topographice vidence clearly shows that spatial distributions of the co-seismic surface ruptures are re-stricted by the pre-existing geological structures of the Kunlun fault．
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| 关 键 词： | Earthquake Co-seiemic surface rupture Active fault Pre-existing fault Seismogenic fault zone |
Relationship between the Pre-existing Active Kunlun Fault and Co-seismic Surface Ruptures Produced by the 2001 Mw 7.8 Central Kunlun Earthquake, China |
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| LIN Ai-ming.Relationship between the Pre-existing Active Kunlun Fault and Co-seismic Surface Ruptures Produced by the 2001 Mw 7.8 Central Kunlun Earthquake, China[J].Advance in Earth Sciences,2004,19(3):368-372. |
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| Authors: | LIN Ai-ming |
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| Institution: | Institute of Geosciences，Faculty of Science，Shizuoka University，836 Ohya，Shizuoka 422-8529，Japan |
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| Abstract: | Field investigations allow to constrain the co-seismic surface rupture zone of ～400 km with a strike-slip up to 16.3 m associated with the 2001 Mw 7.8 Central Kunlun earthquake that occurred along the western segment of the Kunlun fault, northern Tibet. The co-seismic rupture structures are almost duplicated on the pre-existing fault traces of the Kunlun fault. The deformational characteristics of the co-seismic surface ruptures reveal that the earthquake had a nearly pure strike-slip mechanism. The geologic and topographic evidence clearly shows that spatial distributions of the co-seismic surface ruptures are restricted by the pre-existing geological structures of the Kunlun fault. |
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| Keywords: | Earthquake Co-seiemic surface rupture Active fault Pre-existing fault Seismogenic fault zone |
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