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oa Investigation of Geodynamic Anomalies During Local Earthquakes in the Center of the Dnipro-Donets Basin
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 18th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Apr 2025, Volume 2025, p.1 - 5
Abstract
The features of geodynamic processes during two earthquakes that occurred in the Poltava region on May 26, 2023 at 18:38:49 with M=3.5, and on March 1, 2024 at 00:22:45 with M=3.6 are being studied. The research are carried out on digital seismic-tidal records using precision autocompensation seismotiltmeters on the territory of the PGO. Seismic events are united by the fact that their hypocenters are located practically at the same point west of the observation point (36 km). It was established that the seismic signals of both earthquakes are very similar (correlation coefficient 0.94). It was found that bay-like tilts, jumps and other quasi-static phenomena-anomalies arise during earthquakes. For different earthquakes and azimuthal components, such anomalies have both significant differences and some similarities.