CHARACTERISTICS OF SEISMICS OF AZERBAIJAN AND AROUND REGIONS IN 2020

Year 2022, Volume: 21 Issue: 1, 3 - 18, 30.06.2022

Gurban Yetırmıshlı , Saida Ismayilova Sabina Kazimova

Abstract

In 2020, seismic analysis was conducted on the basis of 40 digital data. During the year, 13,295 earthquakes were recorded. Of them, 4030 are local (Azerbaijani territory), 3347 regional and 3123 remote earthquakes. At the same time, 1463 weak tremors (recorded by a single station), 1332 explosions were recorded. Compared to 2019, the number of earthquakes and the amount of seismic energy released in 2020 decreased. Thus, the number of earthquakes in 2020 was 4030, the amount of seismic energy released was ∑E=13.1•1011 J, the maximum magnitude was ml=4.9. During 2020, seismicity was observed in the Greater Caucasus, the Middle Kura Basin and the Caspian Sea. Seismic activation is observed along the West- Caspian, Palmir-Absheron, Ajichay-Alat, Ganjachay-Alazan, Gazakh-Signakh, Talish, Akhvay, Sangachal Ogurchu, Garabogaz-Safidrud, Agrakhan-Kasnavodsk, Khachincha y faults. The area of tension in the territory of Azerbaijan is divided into two areas along the Geokchay fault and the Imishli-Geokchay flexure: the north-eastern part of the republic is characterized by tension, and the southwestern part by compression. Tension is observed in the Absheron region and the Caspian Sea.

Keywords

seismic analysis , West-Caspian , Palmir-Absheron , Ajichay-Alat tectonic faults , analysis of hearth mechanisms.

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