• Block Structure of the Nakhchivan Autonomous Republic and Seismicity of the Crust

    Ilkin Valibeyov

    Seismological Service Department of the Institute of Natural Resources of the Nakhchivan Branch of Anas, Heydar Aliyev Avenue 35,  Az-6719,  Nakhchivan City, Nakhchivan.

    Abstract: The article provides depth divisions bordering the Araz megazon, which includes the Nakhchivan Autonomous Republic. The seismically active areas of the region are adapted to the large tectonic faults of Anatolia, the Caucasus and Iran, are more seismically active, and the hearth zones are located at the intersections of faults in the Caucasian and anti-Caucasian directions. The presence and seismicity, tension and deformation of the complex tectonic structure of the region, the movement of the mixed block structure to the north are regulated by the rigid Arabian plate, which enters the area intensively wedge-shaped. Seismological surveys are carried out in the territory of the autonomous republic on the basis of an observation network consisting of 4 satellite communication systems, digital telemetric seismic stations manufactured by “Kinemetrics” (USA). Earthquakes are processed using Apple’s “Antelope 5.6” software. Local, near and far earthquakes, explosions, volcanoes, landslides are processed through the network of telemetry stations. The catalog of earthquakes is compiled on the basis of data from telemetry stations. This catalog defines the parameters of earthquake centers (T, φ, λ, h and ml). The territory of Nakhchivan AR is divided into Ordubad, Nakhchivan, Shahbuz, Sadarak blocks, which are seismically tectonically separated by pan-Caucasian and transverse faults, and earthquakes of magnitude ml ≥4 are observed at the borders of the blocks.

    Keywords: Earthquake, tectonic blocks, fractures, seismicity.

    Pages: 47 – 51 | Full PDF Paper