USING INSAR IMAGES (SENTINEL 1A AND B ASCENDING) TO SHOW THE SURFACE DEFORMATION OF HALABJA EARTHQUAKE 7.3 MW, 2017 IN DIYALA AREA

Abstract

The study area is affected by a high magnitude earthquake event at magnitude approximately 7.3 Mw on November 12, 2017. This earthquake is covered by significant surface displacement. Sentinel-1 InSAR Interferogram was used to measure and analyze this displacement during 6 days and 24 days’ intervals on November 11–17, 2017 and October 30–November 23, 2017 before and after the occurrence of the earthquake, respectively. Derbandekhan Dam, Bamo Mountain and Diyala River are examined as a reference for the displacement of the InSAR relative measurements between the two periods of InSAR. In the Derbendekhan Dam, the area is recorded horizontal deformation toward SE direction, Bamo Mountain is recorded horizontal deformation toward SE direction and Diyala River area is recorded horizontal deformation toward SE and NW directions. While the Derbendekhan Dam area is recorded subsidence deformation, Bamo Mountain is recorded uplifted deformation and Diyala River area is recorded uplifted and subsidence deformation. Finally, the results check with geodetic observation of Derbendekhan Dam that are close to them.