The results of the verification of the hypocenter of the karst-collapse technogenic earthquake of 2017 in Stebnyk (Western Ukraine) using instrumental data are presented. The verification methodology is based on taking into account the inhomogeneities of the velocity structure of the earth's crust in the region and the corresponding kinematic corrections to the seismic wave hodographs used for hypocentering. The implementation of this methodology in relation to the specified karst-collapse technogenic earthquake in Stebnyk confirmed the localization of its source in the factual collapse zone and thereby unambiguously confirmed the karst-collapse technogenic nature of this earthquake. Based on the developed methodologies and results, kinematic corrections were also calculated for European seismic stations that participated in the express hypocentering of the specified earthquake; the use of these corrections provides an order of magnitude more accurate determination of the localization of the hypocenters of seismic events in the Stebnyk area using data from these seismic stations.
Carpathian Seismological Network of Ukraine. (2026). Department of Seismology of the Carpathian Region of the S.I. Subbotin Institute of Geophysics of the NAS of Ukraine (DSCR IGPh NASU). Access mode: http://seism.lviv.ua/.
EMSC (2017). – https://www.emsc-csem.org/Earthquake_data/ (10/10/2017).
Khevpa Z., Dolin V., Yakovlev E. (2023). Assessment of the development of deformations on the earth's surface within the Stebnytsky potassium deposit mine field by the data of hydrogeological surveillance. Bulletin of the Taras Shevchenko KNU. Geology. No. 4 (103). P. 103-110. http://doi.org/10.17721/1728-2713.103.13 (in Ukrainian).
Lithosphere of Central and Eastern Europe (1987-1993). Ed. A.V. Chekunov. Kyiv: Scient. Thought. (in Russian).
Nazarevych A., Nazarevych L., Nazarevych R., Khmilovska M. (2025a). On the clarification of the hypocentering of natural and technogenic earthquakes in the Boryslav – Stebnyk area (Ukrainian Precarpathians). International Conference of Young Professionals “GeoTerrace-2025”, 6-9 October 2025, Lviv, Ukraine. EAGE, Р. 1-5. https://doi.org/10.3997/2214-4609.2025510013.
Nazarevych A.V., Nazarevych L.Ye., Nischimenko I.M., Oliinyk H.I., Nazarevych R.A. (2025b). Karst-collaps technogenic earthquake September 30 (29), 2017 in Stebnyk (Western Ukraine) and man-made provoked processes at Stebnyk potassic mine. Geodynamics. 2(39). С. 145–169. https://doi.org/10.23939/jgd2023.02.145.
Rudko G.I., Gaydin A.M. (2019). Collapses. Deformations of the earth's surface over mine workings and karsts. Kyiv – Chernivtsi: Bukrek. 196 p. (in Ukrainian).
Structure of the Earth's crust and upper mantle of Central and Eastern Europe. (1978). Sollogub V. B., Guterh A., Prosen D. et al. Kyiv: Scientific Thought. 272 p. (in Russian).
Zayats H.B. (2013). The depth structure of the subsoil of the Western region of Ukraine based on seismic studies and the direction of exploration for oil and gas. Lviv: LB UkrSGEI, 136 p. (in Ukrainian).