Mapping surface deformation using SNAP-StaMPS after Seferhisar-Izmir earthquake.

İzmir, the third-largest city and economic center of Turkey, has been exposed to many natural disasters throughout its history. It is one of them in the 6.6 magnitude earthquake that last occurred on October 30, 2020. In this study, the PSInSAR technique was applied on 26 descending Sentinel-1 images between February 2020 and January 2021 to monitor the land change of the study area determined in Izmir. PSInSAR method was carried out with the SNAP-StaMPS integration, whose methodology is given below. The annual velocity values of the PS points produced in the study area in the direction of satellite view were found between – 68 and 32 mm/year. As a result of the study, it was observed that the most prominent surface change occurred in Çiğli and Karşıyaka districts. The points containing the speed information obtained from the PSInSAR result, PS points, and maps showing changes in the land were shared online to be used as auxiliary data in other studies. [ABSTRACT FROM AUTHOR]