GEODYNAMIC ACTIVITY OF THE BLACK SEA COAST BASED ON GPS OBSERVATIONS DURING THE ACCIDENT ON THE PIPELINE OF THE CASPIAN PIPELINE CONSORTIUM 7 AUGUST 2021 AND ITS POSSIBLE CAUSES

A study of the geodynamic activity of the Black Sea coast of Krasnodar Region during the 7th of August 2021 Caspian Pipeline Consortium accident was performed. The purpose of the study was to clarify the cause of the accident or the circumstances that caused the pipeline integrity failure. The research tool was a network of satellite geodynamic GPS stations Anapa and Gelendzhik. Analysis of GPS station movement plots shows the accumulation of stresses a few months before the accident. 1.5 months before this event, a geodynamic anomaly of vertical movement in the form of a bay-like subsidence of the earth’s surface began to appear. Analysis of the seismic-geodynamic situation does not give reason to link the geodynamic anomaly of the movement of the nearest GPS stations Anapa and Gelendzhik with the failure of equipment on the jetty device of the Caspian Pipeline Consortium, which does not have a rigid connection with the earth’s surface. One can assume the possible impact of geodynamic movements on the underwater section of the pipeline with a rigid attachment on the seabed. The basis for this is the latest research to study the resonant properties of oscillating lithospheric plates. It has been established that resonances that can provoke intensive movements of water masses in the pipeline zone can occur.

Utrish Reserve, Black Sea coast of Krasnodar Region, satellite geodynamics, geodynamic anomaly, Caspian Pipeline Consortium, lithospheric plate resonances