SEISMICITY OF THE TERRITORY OF AZERBAIJAN IN 2019

Abstract

The article provides an analysis of the seismicity of Azerbaijan territory for 2019 year. Maps of the earthquake epicenters are shown in this article and 5442 seismic shocks were recorded. The distribution of earthquakes by regions is related to their tectonic structure. Histograms of the number of earthquakes in the area and the distribution of released seismic energy for months, as well as years have been created. It was determined that seismic activity in the south-eastern slope of the Greater Caucasus-ZagatalaBalakan zone is A10 = 1.6-2.0, in Shamakhi-Ismayilli zone A10 = 1.6-2.0, in Talish A10 = 1.6-2.0, in the north of the Caspian Sea A10 = 0.6-1.0, in the center A10 = 0.9-1.6, and in the southern part the active areas are equal to A10 = 1.0-1.7.
Compared to 2018, the number of earthquakes in 2019 increased, and the amount of released seismic energy has decreased. Thus, in 2018, the number of earthquakes in the territory of Azerbaijan was 4081, the amount of released seismic energy ∑E = 42.7 ∙ 1011C, the maximum magnitude ml = 5.5, the number of earthquakes in 2019 was 5442, the amount of released seismic energy ∑E = 31.9 ∙ 1011C, the highest magnitude ml = 5.2. Based on the data of the obtained earthquake source mechanisms, the scheme of compression and tension axes was constructed. As can be seen from the map, the compression axes in the Zakatala-Balakan zone are mainly directed in the direction of the NEW-SE, in the Shamakhi-Ismayilli, Middle and Lower Kura basins and in the Talish zone in the direction of the NE-SW