The correlation between the characteristics of seismic wave propagation in Western Caucasus and the geological–tectonic features of the region

Research reveals that seismic wave propagation in the Western Caucasus is significantly influenced by the region's complex geological and tectonic structure, with distinct variations observed between Sochi and Anapa. The study identifies a correlation between the Q-factor (a measure of seismic energy absorption) and local tectonic features, such as fault structures, thrusts, and sedimentary cover thickness. Specifically, the Q-factor behaves differently in low frequencies near Sochi (Q(f) ~ 55f^0.9) compared to Anapa (Q(f) ~ 90f^0.7), suggesting that tectonic dislocations play a key role in seismic wave attenuation. Additionally, the study highlights local variations in seismic radiation and propagation parameters, likely tied to geological features like shatter zones and oblique seismic boundaries. This work provides critical insights for forecasting seismic behavior in mountainous regions with intricate geological structures.

Kharazova, Yu. V., Pavlenko, O. V., & Dudinskii, K. A. (2016). The correlation between the characteristics of seismic wave propagation in Western Caucasus and the geological–tectonic features of the region. Izvestiya, Physics of the Solid Earth, 52(3), 399–412. https://doi.org/10.1134/s1069351316030046