Co-seismic ground-surface deformation of the Yushu earthquake on April 14, 2010 is studied on the basis of interferometry principle by using InSAR images from ALOS PALSAR and ENVISAT ASAR pairs. The observed maximum l...Co-seismic ground-surface deformation of the Yushu earthquake on April 14, 2010 is studied on the basis of interferometry principle by using InSAR images from ALOS PALSAR and ENVISAT ASAR pairs. The observed maximum line-of-sight displacement is 54 cm, which is equivalent to a sinistral strike slip of 180 cm on the surface. The location of macro-epicenter is very close to the epicenter determined by in situ investigation, suggesting that InSAR is an ideal tool for quick identification of the macro-epicenter, and thus for timely disaster assessment after a destructive earthquake.展开更多
基金supported by National Natural Science Foundation of China( 41004008) Key Foundation of Institute of Seismology China Earthquake Administration ( IS201026019) +3 种基金State Key Laboratory of Cryo-spheric Sciences,Cold and Arid Regions Environment and Engineering Research Institute,Chinese Academy of Sciences ( SKL CS09 - 03) the Foundation of State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University( 2009B54) the Foundation of Institute of Seismology China Earthquake Administration( IS200826057 ) National Key Technology R&D Program of China( 2008BAC35B04 -5)
文摘Co-seismic ground-surface deformation of the Yushu earthquake on April 14, 2010 is studied on the basis of interferometry principle by using InSAR images from ALOS PALSAR and ENVISAT ASAR pairs. The observed maximum line-of-sight displacement is 54 cm, which is equivalent to a sinistral strike slip of 180 cm on the surface. The location of macro-epicenter is very close to the epicenter determined by in situ investigation, suggesting that InSAR is an ideal tool for quick identification of the macro-epicenter, and thus for timely disaster assessment after a destructive earthquake.
