Earthquake on February 12, 2025 at 13:40 in the Black Sea (near Tuapse city) with Mw=3.3, I0=4

Instrumental and macroseismic data on the earthquake of February 12, 2025, with the epicenter in the Black Sea near Tuapse at 13:40 with h=11 km, Mw=3.3 are presented. The earthquake parameters were determined based on instrumental data from regional seismic station networks of the GS RAS, the Crimean Center, and Georgia. Source spectra were calculated based on the records of regional seismic stations of the GS RAS and the spectral parameters were determined: seismic moment M0, stress drops Δσ and rupture radius R. In tectonic terms, the earthquake under study occurred in the Tuapse Trough zone in the Black Sea ESZ with Mmax=6.0. The focal mechanism of the earthquake was defined as a normal fault with a right-lateral strike-slip. Macroseismic data collection was carried out; the maximum intensity in the nearest populated area to the epicenter, the city of Tuapse, was 4 points on the seismic intensity scale – national standards of Russia GOST R 57546-2017.