The primary objective of this research is to apply the DInSAR (Differential Interferometric Synthetic Aperture Radar) method in investigating the interseismic period of the Dzherman fault near Sapareva Banya. It is used to detect and measure surface deformations occurring during this phase of the seismic cycle, characterized by low rates of strain accumulation. The analysis utilizes Sentinel-1 satellite radar images covering the timeframe from 2015 to 2022, with a yearly temporal resolution. A total of 14 interferograms derived from 7 pairs of ascending and 7 pairs of descending orbit images were processed. The main is to contribute to the profound understanding of stress accumulation processes and fault behavior in the examined region. The analysis reveals the presence of oscillatory movements along the Dzherman fault area, which are classified into three distinct models. These results are subjected to comprehensive discussion, acknowledging the methodological and technological constraints of the applied methodology. Despite these limitations, the study highlights the inherent potential of the DInSAR method in providing a qualitative assessment of surface deformations during the low strain interseismic period.