Preliminary Analysis on characteristics of Co-seismic Deformation Field of the Gerze Earthquake (Ms6.9) from Ascending and Descending Pass ASAR Radar Interferometry

摘要

We process the ascending and descending mode ASAr radar data that covers the same area using 2-pass DInSAR technology,and get the co-seismic deformation field,which provides us information on the seismiC activity in the study area,in LOS direction of the Gerze (Tibet) earthquake (Ms6.9),which happened on 9 January 2008,followed by 40 aftershocks including the largest one on 16 January 2008. The result shows that it is double earthquakes caused by two buried normal faults. The LOS deformation is from -46.0cm to 11.4cm by descending interferometry pair,and -47.8cm by ascending interferometry pair.