The city of Eljebha, Morocco, and its surroundings have always been affected by instability and slope failure, both natural and man-made. The Neogene conglomeratic clay formations, which form most of the city of Constantine, are extremely sensitive to the presence of water, which makes them susceptible to landslides. Therefore, to preserve the environment and endangered species, remote sensing has been designed to facilitate the monitoring and supervision of natural hazards and threats. The present paper deals with the detection of stable points by the new technique of permanent dispersers PSInSAR, as well as the subsidence rate with an accuracy in mm/year in the