| CHARACTERISTICS OF CRUSTAL DEFORMATION RELATED TO Ms8.1 KUNLUNSHAN EARTHQUAKE |
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| 作者姓名： | Qiao Xuejun Wang Qi Du Ruilin Chen Zongshi You Xinzhao and Tan Kai Institute of Seismology China Earthquake Administration Wuhan China Second Crust Monitoring and Application Center CEA Xi’an China Center for Analysis and Predication CEA Beijing China |
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| 作者单位： | Qiao Xuejun 1)，Wang Qi，1)，Du Ruilin，1)，Chen Zongshi 2)，You Xinzhao 3) and Tan Kai 1) 1) Institute of Seismology，China Earthquake Administration，Wuhan 43007，China 2) Second Crust Monitoring and Application Center，CEA，Xi’an 710054，China 3) Center for Analysis and Predication，CEA，Beijing 100036，China |
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| 基金项目： | IntegrativeinvestigationonKunlunMs8.1earthquake,Statekeyproject 2 001BA601B02,ChinaNationalFoundationofScience (4 0 0 740 2 4) |
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| 摘 要： | 1 IntroductionTheBogedabanapexofKunlunmountainanditsneighborhoodregionlocatedattheboundaryofXinjiangandQinghaiprovinceswerehitbyaMs8.1earthquakeonNovember 1 4,2 0 0 1 .ThisisthestrongestearthquakewithmagnitudebiggerthanMs8.0inmainlandChinasinceacomparableearth quakehappenedinDangxiongofTibetonNovember1 8,1 95 1 .TheepicenterdeterminedbyChineseseismicnetworkislocatedatN36.2°,E90 .9°,40 0kilometersawayfromRuoqiangcountyofXinjiangprovinceand 35 0kilometersfromGolmudcityre spectively.Mea…
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CHARACTERISTICS OF CRUSTAL DEFORMATION RELATED TO Ms8.1 KUNLUNSHAN EARTHQUAKE |
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| Qiao Xuejun,Wang Qi,Du Ruilin,Chen Zongshi,You Xinzhao,Tan Kai.CHARACTERISTICS OF CRUSTAL DEFORMATION RELATED TO Ms8.1 KUNLUNSHAN EARTHQUAKE[J].Journal of Geodesy and Geodynamics,2003,23(Z1). |
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| Authors: | Qiao Xuejun Wang Qi Du Ruilin Chen Zongshi You Xinzhao Tan Kai |
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| Abstract: | The co seismic and post seismic deformation velocities of M s 8.1 Kunlunshan earthquake on Nov. 14, 2001 were calculated from the results of 1991-2001 GPS data and 4 repeated GPS surveys after the event. The result indicates the maximum co seismic and post seismic changes are 1.9 m and 0.08 m respectively. On the basis of the result of post seismic velocity, we used an elastic dislocation model to inverse the crustal deformation characteristics of eastern Kunlun active fault. The result shows that the domain motion of eastern Kunlun fault is left lateral and strike slip. The trend of eastward motion for the southern block of Kunlun fault implies redistribution and reaccumulation of energy after the earthquake. It is possible that the seismicity will migrate to eastern region in the future according to the trend that strong earthquakes along Kunlun fault extended from west to east during the last several decades. |
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| Keywords: | western Kunlun earthquake co-seismic deformation post-seismic deformation elastic dislocation model |
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