Abstract. The information on the dynamic parameters (DP) of 261 earthquakes with К_П = 5.2–13.1 (К_П, earthquake class according to Pustovitenko and Kulchitsky) that occurred from 1990 to 2022 was collected for the Crimean-Black Sea region from various sources. These parameters include scalar seismic moment of М₀, source radius r, stress drop Δσ, etc. The distributions of the DP depending on the magnitude and scalar seismic moment were constructed and approximated by a linear function; in some cases, a power function was additionally considered. The determination coefficient R² was calculated. The dependence of the logarithm of the scalar seismic moment for the Crimean-Black Sea region is lg(М₀) = 0.87M + 11.4 (R² = 0.84). The areal distribution of the average annual rate of seismotectonic deformations (STD intensity) was constructed based on the earthquake catalog (1993–2022). The STD intensity was compared with the stress drop level. Based on the data on the stress drop for the Crimean-Black Sea region, the areal distribution of the weighted average of the stress drop was constructed.

For citation: Sycheva N.A. Analysis of dynamic parameters of earthquakes in the Crimean-Black Sea region. Stress drop distribution. Geosistemy perehodnykh zon = Geosystems of Transition Zones, 2026, vol. 10, No. 1, pp. 5–22. (In Russ.).
https://doi.org/10.30730/gtrz.2026.10.1.005-022, https://www.elibrary.ru/fkahve

Для цитирования: Сычева Н.А. Анализ динамических параметров землетрясений Крымско-Черноморского региона. Распределение сброса напряжений. Геосистемы переходных зон, 2026, т. 10, № 1, с. 5–22.
https://doi.org/10.30730/gtrz.2026.10.1.005-022, https://www.elibrary.ru/fkahve

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