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《Journal of Geodesy and Geodynamics》 2011-02
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DISTRIBUTION OF STRAIN RATES IN TAIWAN BEFORE AND AFTER 1999 CHI-CHI EARTHQUAKE AND THEIR GEODYNAMIC MECHANISMS

Zhu Shoubiao 1),Zhao Xiaoyan 2),Liu Yang 3) and Miao Miao 3) 1)State Key Laboratory of Earthquqke Dynamics,Institute of Geology,CEA,Beijing 100029 2)College of Disaster Prevention Techniques,Sanhe 065201 3)Institute of Crustal Dynamics,CEA,Beijing 100085  
The destructive Chi-Chi earthquake occurred in 1999,which had a full impact on the stress state in Taiwan.The strain rates based on the GPS data before and after the 1999 Chi-Chi earthquake in the period of 1990-1995 and of 2003-2005 were estimated respectively.The computed results show that the pattern of strain rate distribution in Taiwan is not changed much before and after the Chi-Chi earthquake.The highest value of the maximum principle strain rates is located on the Coastal Range,which orientated obliquely to the trend of Taiwan.Deceasing rapidly from east to west,the values of principle compressive strain rates are less than those of extensive strain rates on the Central Range,behaving on tensile strain state there.And principle compressive strain rates are very small on the western Coastal Plain.At the same time,the orientations of principle strain rates are agreement with those of P-and T-axis in focal mechanisms in Taiwan.The high value of the maximum shear strain rates is located on the Coastal Range where the surface dilatation rates are negative,and the absolute value is highest in Taiwan.However surface dilatation rates are positive on both the northern and southern sides of the Central Range.The computed results demonstrate that the Coastal Range is the central collision zone between Taiwan and Luzon arc,and material escapes toward two directions of NE and SW,respectively.In the period of 2003-2005,after 4 years since the Chi-Chi earthquake,the maximum shear strain rates become much larger than those in the period of time before the mainshock which may be resulted from the changes of the physical properties of the medium in focal regions,also suggesting that the medium did not resume to the state before the Chi-Chi earthquake,yet.
【Fund】: 国家自然科学基金(40974020 40774024);; 北京市自然科学基金(8082024);; 中国地震局教师科研基金(20090103);; 地震动力学国家重点实验室基金(LED2008B02)
【CateGory Index】: P315.725
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 ZHU Shou-Biao 1,2, CAI Yong-En 2, SHI Yao-Lin 31 Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China2 Department of Geophysics, Peking University, Beijing 100871, China3 Key Laboratory of Calculational Geodynamics, Graduate School of Chinese Academy of Sciences, Beijing 100039, China;Computation of the present-day strain rate field of the Qinghai-Tibetan plateau and its geodynamic implications[J];Chinese Journal of Geophysics;2005-05
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Zhu Shoubiao1,2)and Shi Yaolin2)(1)Institute of Crustal Dynamics,CEA,Beijing 1000852)Key lab of Calculation Geodynamics,Graduate University of CAS,Beijing 100049);ERROR ANALYSIS OF STRAIN RATES RESULTED FROM ERRORS OF GPS MEASUREMENT[J];Journal of Geodesy and Geodynamics;2007-06
2 Yao Daorong1),Zhong Bo2,3),Wang Haihong2,3) and Wang Wei2)1)Logistic Support Department,Wuhan University,Wuhan 4300722)School of Geodesy and Geomatics,Wuhan University,Wuhan 4300793)Key Laboratory of Geospace Environment and Geodesy, Ministry of Education,Wuhan University,Wuhan 430079;COMPARISON BETWEEN LEAST SQUARE COLLOCATION AND ORDINARY KRIGING[J];Journal of Geodesy and Geodynamics;2008-03
3 GUO Zhi1,2,SU You-liang1,2,WANG Wei-min1,GAO Xing1,YU Ping3(Institute of Tibetan Plateau,Chinese Academy of Sciences,Beijing 100085,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100039,China;3.Centre of Analysis and Prediction,Hunan Earthquake Administration,Changsha 410001,China);A study of crust structure beneath NMCO seismic station using transform method[J];Progress in Geophysics;2007-05
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5 ZHU Shou-Biao~1, SHI Yao-Lin~21 Institute of Crustal Dynamics, China Earthquake Administration, Beijing 100085, China2 Laboratory of Comutational Geodynamics, Graduate University of Chinese Academy of Sciences, Beijing 100049, China;Error analysis of strain rates from GPS measurements based on Monte Carlo method[J];Chinese Journal of Geophysics;2007-03
6 Ma Hongsheng1,2) Zhang Guomin1) Liu Jie3) Jiang Zaisen1)Hua Wei2,4) Wang Hui1) Wang Xinling1)1) Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China2) Institute of Geophysics, China Earthquake Administration, Beijing 100081, China 3) China Earthquake Networks Center, Beijing 100036, China 4) Earthquake Administration of Guangdong Province, Guangzhou 510070, China;COUPLING CHARACTERISTICS OF STRESS AND STRAIN AT DIFFERENT LAYERS OF DIFFERENT SUB-REGIONS IN YUNNAN AND ITS ADJACENT AREAS[J];Acta Seismologica Sinica;2007-02
7 ZHU Shou-biao1 CHEN Xia2 YANG Xu-hai2(1.Institute of Crustal Dynamics,CEA,Beijing 100085,China)(2.College of Disaster Academy of Sciences,Sanhe City 065201,Hebei,China);Application of Stress Release Model in Qinghai-Tibet Plateau[J];Journal of Seismological Research;2007-03
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9 Zhang Xiaoliang1,2) Xie Furen1),Shi Baoping3)1) Institute of Crustal Dynamic,China Earthquake Administration,Beijing 100085,China 2) China Earthquake Disaster Prevention Center,Beijing 100029,China3) College of Earth Science,Graduate University of Chinese Academy of Science,Beijing 100049,China;Quantitative estimation of recurrence intervals of the M_S≥6.5 earthquakes in southern Sichuan-Yunnan region using GPS observations[J];Acta Seismologica Sinica;2010-01
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1 ZHU Shoubiao 1) SHI Yaolin 2) ( 1)Department of geophysics, School of Earth and Space Sciences, Peking University, Beijing, 100871; 2) Key lab of calculation geodynamics, Graduate School, Chinese Academy of Sciences, Beijing, 100039);Genetic Algorithm-Finite Element Inversion of Topographic Spreading Forces and Drag Forces of Lower Crust to Upper Crust in Tibetan Plateau[J];Acta Scicentiarum Naturalum Universitis Pekinesis;2005-02
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7 SHEN Zheng-kang 1,2 ,WANG Min 3,GAN Wei-jun 1,ZHANG Zu-sheng 4 (1.Crustal Deformation Research Center, Institute of Geology, China Seismological Bureau, Beijing 100029,China;2.Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095-1567, USA;3.Center for Earthquake Analysis and Prediction, China Seismological Bureau, Beijing 100036,China;4.First Crustal Deformation Monitoring Center, China Seismological Bureau, Tianjin 300180,China);CONTEMPORARY TECTONIC STRAIN RATE FIELD OF CHINESE CONTINENT AND ITS GEODYNAMIC IMPLICATIONS[J];Earth Science Frontiers;2003-S1
8 Wang Yanbin Wang Yong (Institute of Geology,Chinese Academy of Geological Sciences,Beijing 10037)Lee Jiancheng Zhang Yuzhan (Institute of Earth Sciences,Academia Sinica,Taibei,P.O.Box1 55);CHARACTERISTICS OF GROUND RUPTURES CAUSED BY THE 1999 M 7.3 EARTHQUAKE OF JIJI,TAIWAN[J];SEISMOLOGY AND GEOLOGY;2000-02
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