Volume 15 Issue 2
Jun.  2009
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YAO Xin, ZHANG Yong-shuang, 2009. CO-SEISMIC DEFORMATION OF '5.12' WENCHUAN EARTHQUAKE BASED ON D-INSAR. Journal of Geomechanics, 15 (2): 151-161.
Citation: YAO Xin, ZHANG Yong-shuang, 2009. CO-SEISMIC DEFORMATION OF "5.12" WENCHUAN EARTHQUAKE BASED ON D-INSAR. Journal of Geomechanics, 15 (2): 151-161.

CO-SEISMIC DEFORMATION OF "5.12" WENCHUAN EARTHQUAKE BASED ON D-INSAR

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  • Received: 2009-05-27
  • Published: 2009-06-01
  • Co-seismic deformation is important original information to determine seismogenic faults, to understand mechanism of earthquake, to analyze fault movement, to evaluate the earthquake property lo sses as well as to discover the trend of future earthquakes. However, ways to survey co-seismic deformation are unable to quickly and comprehensively capture this kind of information. Therefore, a new spatial surveying method, D-InSAR (i. e. Differential Interferometry SAR), is highlighted. This paper presents D-InSAR principle and reviews progress of D-InSAR applied to co-seismic deformation observation, then qualitatively analyzes characteristics of D-InSAR image about " 5.12" Wenchuan earthquake. Results show that many geological phenomena, surface ruptures, change of fault dip angle, vertical displacement of two plates alone fault and distribution of huge geo-hazards, are highly related with D-InSAR image.

     

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