Preliminary studies of seismicity caused by the water level changes in Dnister upper reservoir

Earth Surface Processes & Geodynamics


First and Last Name Academic degree E-mail Affiliation
Ivan Brusak No brusak.ivan [at] Lviv Polytechnic National University
Lviv, Ukraine
Kornyliy Tretyak Sc.D. kornel1958 [at] Lviv Polytechnic National University
Lviv, Ukraine
Roman Pronyshyn No pronrom [at] Institute of Geophysics by S.I. Subbotin name of the National Academy of Sciences of Ukraine
Lviv, Ukraine

I and my co-authors (if any) authorize the use of the Paper in accordance with the Creative Commons CC BY license

First published on this website: 14.08.2022 - 14:24

The research presents preliminary studies of seismicity in region of Dnister upper reservoir and confirms the assumption of (Savchyn & Pronyshchyn, 2020) study that claims that the Dnister Hydro Power Complex can be considered as one of the objects where the phenomenon of reservoir induced seismicity has been recorded. Specially installed seismic station «Novodnistrovsk» recorded 956 earthquakes from 2012 to 2021, but only 40 earthquakes are reliably recorded by three or more seismic stations. The earthquakes occur in the contact of structures of different lithological composition at a depth of 1-3 km close to Dnister upper reservoir. Therefore, friction between the structures occur and the corresponding release of energy precisely in the contact zone of the two structures is observed. We calculate the volume changes in the reservoir based on the OpenTopoMap Model in QGIS software and the known changes in the water level from 2012 to 2021 year. The Pearson correlation coefficient between the reservoir absolute volume change and the total seismicity determined through the energy class is 0.64. Further research can be devoted to the search for a functional interrelationship between the parameters, dividing the studied data into equal periods. Similar studies can be carried out at different reservoirs, which have different geological structures.


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Tretyak, K., Korliatovych, T., Brusak, I. (2021) Applying the statistical method of GNSS time series analysis for the detection of vertical displacements of Dnister HPP-1 dam. International Conference of Young Professionals, GeoTerrace 2021. DOI: 10.3997/2214-4609.20215K3012