Geodynamics of the Azov-Black Sea coast during the period of Turkish earthquakes in February-March 2023

Authors

  • Kalinchuk V.V. Federal Research Center Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, Russian Federation ORCID 0000-0002-4090-0877
  • Shestopalov V.L. Federal Research Center Southern Scientific Center of the Russian Academy of Sciences, Rostov-on-Don, Russian Federation ORCID 0000-0002-6928-5855
  • Alyoshin B.N. Yuzhmorgeologiya Joint Stock Company, Gelendzhik, Russian Federation
  • Mukhin A.S. Kuban State University, Krasnodar, Russian Federation ORCID 0000-0001-8935-0151
  • Sheremetyev V.M. Southern Interregional Department of Rosprirodnadzor, Krasnodar, Russian Federation

UDC

539.3

DOI:

https://doi.org/10.31429/vestnik-20-2-18-27

Abstract

The development of geodynamic processes on the territory of the Azov-Black Sea coast during the period of earthquakes in Turkey 06.02.2023 is being considered according to continuous GPS measurements. The observed movement of geodynamic stations Gelendzhik, Temryuk, Sochi and Lesnoye northwest of the trend may be caused by the increasing pressure of the Anatolian plate on the northern side of the Black Sea Depression.

After seismic events 06.02.2023 in Turkey there is a subsidence of these points in height, which indicates stress relaxation in the study area. According to the data of maximum slip rate obtained in the national network of Turkey TNPGN-Active (1.5 m and 5.2 m), the estimated magnitude of expected earthquakes in the area of ?the East Anatolian fault was 7.1 and 7.5, which is close to the values of earthquakes 7.5 and 7.8.

The estimate of the time of geodynamic activity in the studied area since the Turkish earthquakes 06.02.2023 is 8 to 80 years for the empirical model of earthquake epicenter migration and 1.6 months for the nonlinear rotational model of the seismic process, which is confirmed by the increase in seismicity in the Caucasus and the activation of mud volcanoes on the Taman Peninsula in the spring of 2023. It was proposed to use continuous observations at TNPGN-Active network stations (primarily ANTE, ONIY, MLT1 and EKZ1) for the period 2016-2023 to determine the integral criterion of crustal stress according to the methodology developed at the SSC RAS for the purpose of retrospective monitoring of geodynamic processes and early warning of seismic hazard.

Keywords:

earthquakes in Turkey, seismic activity, GNSS measurements, Azov-Black Sea coast

Acknowledgement

The work was carried out on the topic of the Southern Scientific Center of the Russian Academy of Sciences "Study of Complex Natural and Man-made Processes Using the Block Element Method," State Registration No. 122020100341-0, and the contract of Yuzhmorgeologiya JSC No. 01/2018-04-YuRTs (03) "Observation of geophysical and gas-hydrogeochemical fields within the Azov, Black Sea and Caspian coastal zones of the North Caucasus seismoactive region" and the Ministry of Education and Science, KubSU, project (FZEN-2023-0006).

Author Infos

Valerij V. Kalinchuk

член корр. РАН, д-р физ.-мат. наук, заведующий комплексным отделом механики, физики, химии и нанотехнологий Южного научного центра РАН

e-mail: vkalin415@mail.ru

Valerij L. Shestopalov

канд. техн. наук, ведущий специалист Южного научного центра РАН

e-mail: valcpg@mail.ru

Boris N. Alyoshin

управляющий директор АО "Южморгеология"

e-mail: bnaleshin@rusgeology.ru

Aleksey S. Mukhin

канд. физ.-мат. наук, старший научный сотрудник Кубанского государственного университета

e-mail: muhin@mail.kubsu.ru

Vladimir M. Sheremetyev

канд. геол.-минерал. наук, эксперт Южного межрегионального управления Росприроднадзора

e-mail: sheremetev-v@mail.ru

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Issue

2023. Vol. 20. No. 2

Section

Mechanics

Pages

18-27

Submitted

2023-06-16

Published

2023-06-30

How to Cite

Kalinchuk V.V., Shestopalov V.L., Alyoshin B.N., Mukhin A.S., Sheremetyev V.M. Geodynamics of the Azov-Black Sea coast during the period of Turkish earthquakes in February-March 2023. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2023, vol. 20, no. 2, pp. 18-27. DOI: https://doi.org/10.31429/vestnik-20-2-18-27 (In Russian)

Copyright (c) 2023 Kalinchuk V.V., Shestopalov V.L., Alyoshin B.N., Mukhin A.S., Sheremetyev V.M.

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