Recent GPS results on the geodynamics of the area around Sofia (Central-Western Bulgaria)

Abstract

The paper outlines recent results from estimation of 23 years GPS measurements on the geodynamic network around Sofia. The obtained result, clearly provide new more accurate GPS geodynamic data on the considered area. All velocities clearly exceed 1.5–2 mm/y reaching up to 3–4 mm/y. As a general tendency the velocities tend to increase from North to South. According to the new results analysis of geological processes is given. The newly acquired velocities from three campaigns 1997, 2000 and 2020 years confirm that the general tendency of movement of the stations in the region of Central West Bulgaria is in the south direction with respect to stable Eurasia. The velocities tend to increase from north to south. This pattern is in agreement with the extensive movement of southern Bulgaria and northern Greece. The new results provide much better accuracy, reliability and local details.