| Research on Characteristics of Focal Rupture of the Zhangbei-Shangyi Earthquake by Means of Deformation Field Obtained by Spaceborne D-INSAR |
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| 引用本文： | SHAN Xinjian,Ma Jin,Song Xiaoyu,Wang Chao,LIU Jiahang,Zhang Guifang. Research on Characteristics of Focal Rupture of the Zhangbei-Shangyi Earthquake by Means of Deformation Field Obtained by Spaceborne D-INSAR[J]. 中国地震研究, 2003, 17(2): 113-121 |
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| 作者姓名： | SHAN Xinjian Ma Jin Song Xiaoyu Wang Chao LIU Jiahang Zhang Guifang |
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| 作者单位： | Shan Xinjian 1)，Ma Jin 1)，Song Xiaoyu 1)，Wang Chao 2)，Liu Jiahang 1) and Zhang Guifang 1) 1) Institute of Geology，China Seismological Bureau; Laboratory of Tectonophysics，CSB，Beijing 100029，China 2) Institute of Remote Sensing Applications，Chinese Academy of Sciences，Beijing 100029，China |
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| 基金项目： | ThisprojectwassponsoredbytheStateKeyBasicResearchProgram (G19980 4 0 70 3) ,ChinaandtheNationalScienceFoundation (4 980 2 0 2 7,4 0 14 2 0 31),China . |
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| 摘 要： | INTRODUCTIONAnMS6 2earthquakeoccurredon 1 0Jan .1 998ontheborderofZhangbeiandShangyicountriesofHebeiProvince .TheearthquakewasnamedtheZhangbei_Shangyiearthquake .Theepicenterislocatedintheregion ,whichiscoveredwithbasaltandthereisnoactivefaultonthesurface .Aftertheearthquakeoccurred ,manyscholarsstudieditsseismogenictectonicsandfocalcharacteristicsinaspectsofactivestructure ,aftershockdistribution ,intensitycontour,focalmechanismetc .(XuXiwei,etal.,1 998;XuJie ,etal.,1 998;MaShutia…
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| 关 键 词： | D-InSAR 焦点特征 焦点断层 干涉图 地震 |
Research on Characteristics of Focal Rupture of the Zhangbei-Shangyi Earthquake by Means of Deformation Field Obtained by Spaceborne D-INSAR |
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| SHAN Xinjian,Ma Jin,Song Xiaoyu,Wang Chao,LIU Jiahang and Zhang Guifang. Research on Characteristics of Focal Rupture of the Zhangbei-Shangyi Earthquake by Means of Deformation Field Obtained by Spaceborne D-INSAR[J]. Earthquake Research in China, 2003, 17(2): 113-121 |
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| Authors: | SHAN Xinjian Ma Jin Song Xiaoyu Wang Chao LIU Jiahang Zhang Guifang |
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| Affiliation: | Institute of Geology, China Seismological Bureau; Laboratory of Tectonophysics, CSB, Beijing 100029, China;Institute of Geology, China Seismological Bureau; Laboratory of Tectonophysics, CSB, Beijing 100029, China;Institute of Geology, China Seismological Bureau; Laboratory of Tectonophysics, CSB, Beijing 100029, China;Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100029, China;Institute of Geology, China Seismological Bureau; Laboratory of Tectonophysics, CSB, Beijing 100029, China;Institute of Geology, China Seismological Bureau; Laboratory of Tectonophysics, CSB, Beijing 100029, China |
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| Abstract: | In the last ten years, the D-InSAR (Differential Interferometric Synthetic Aperture Radar)technique has proved very useful; it has been a new space observation technique with greatpotential. Investigating seismic focus rupture information using D-InSAR is a scientific issue towhich more attention is being paid. In this paper, the basic theory of seismic focus dislocationmodels is discussed briefly. Based on a map of the interferometric deformation field of theZhangbei-Shangyi earthquake from Jan. 10, 1998, and applying the seismic focus dislocationmodel within elastic half-space medium; some geometrical and kinematical characteristics of themain seismic fault are deduced. Results were as follows: the seismic break surface of theZhangbei-Shangyi earthquake is left-slip and thrust fault, striking in SEE-NWW 272°with dipangle 46°; rupture direction is unilateral faulting from SEE to NWW; length of rupture zone is9km, width is 8km, and depth is 8km, the displacement vector of three directions are 290mm,560mm and 0mm. |
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| Keywords: | D-InSAR Interferogram Focal dislocation Focal characteristics Zhangbei-Shangyi earthquake |
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