GEODYNAMICS OF AZERBAIJAN PART OF THE CASPIAN SEA

Abstract

The article deals with the seismic activity of the Azerbaijan part of the Caspian Sea on the basis of current data on seismicity and geostructure of studied region. The analysis of its seismic activity and the results of the determination of mechanisms
of earthquake sources are given. It was found that most of the earthquakes are concentrated in Absheron-Cheleken threshold zone. Depth of sources largely varies within 25-35 and 40-60 km. Most of the earthquakes are below the Moho boundary,
which indicates the deep roots of Absheron-Balkhan mobile system. The results of determination of mechanisms of the earthquake sources have shown that for the territory of Central Caspian depression troughs for small values of angles of the axes
elongation are typical large-angle compression axis that indicates the predominance of strike-shift movements.