Abstract: In this study, Synthetic Aperture Radar Interferometry (InSAR) method is used together with fieldobservations to determine whether surface deformations occur in the region after the 5,5 Mw (AFAD) SamsatEarthquake occurred at a distance of 2.5 km from the Samsat district of Adıyaman province on 2 March 2017. Weattempted to determine the deformation of the interferogram created by analyzing two Synthetic Aperture Radar(SAR) images of the Sentinel-1A fit before and after the earthquake. As a result of the evaluation of the interferogram,a surface deformation of about 2.5 cm in the satellite view direction/Line of Sight (LoS) was observed in the region.This deformation is mostly concentrated in the northeast of Samsat town. As a result of the detailed field investigationsmade immediately after the earthquake in the region, no surface rupture occurred but surface deformations in theform of local and discontinous fissures developed in some areas. It is understood that the Earthquake developed ona fault passing through about 5 Km North of Samsat and named as Samsat Fault by TPAO. It appears that morethan 400 aftershocks following the main shock in the region concentrate roughly on a N40-50W lineament. It isnoteworthy that in the observations made in the field, the distribution of the damage has also developed along thisline in particular.