Simulation of Tsunami Wave Propagation in the Kerch Strait
https://doi.org/10.7868/S207366732101007X
Abstract
The results of numerical modeling of the propagation of tsunami waves from several seismic sources of the Azov-Black Sea basin, which represent a potential hazard for the Kerch Strait, are presented. At the first stage, for the entire Azov-Black Sea basin, the evolution of four model sources of tsunami generation was simulated — two sources closest to the strait in the Black and Azov Seas, a remote Black Sea source, and also a source similar to the one that caused the Yalta earthquake on the 12th September of 1927. The initial conditions were set in the form of an elliptical rise in sea level, the parameters of the ellipse were found according to empirical formulas corresponding to an earthquake with a magnitude of 7. For these foci, tide gauges were analyzed at the entrance to the strait from the Black and Azov Seas. It was revealed that at the entrance to the strait, the Black Sea tsunamis have shorter periods than the Azov Sea ones. At the second stage, the penetration of tsunami waves into the Kerch Strait was modeled on a high-resolution grid. Model data from the first stage were used as boundary conditions at the liquid boundaries of the strait. The identified areas of maximum sea level rise are located along the coast of the strait when waves propagate from both the Black and Azov Seas. It is shown that Tuzla Island has a blocking effect on the propagation of tsunami in the strait.
About the Authors
A. Yu. BelokonRussian Federation
299011, Kapitanskaya Str., 2, Sevastopol
V. V. Fomin
Russian Federation
299011, Kapitanskaya Str., 2, Sevastopol
References
1. Fomin V.V., Lazorenko D.I., Fomina I.N. Numerical Modeling of Water Exchange through the Kerch Strait for Various Types of the Atmospheric Impact. Physical Oceanography]. 2017, 4, 79–89. doi: 10.22449/1573–160X-2017–4–79–89
2. Dotsenko S.F., Ivanov V.A. Catastrophic natural phenomena of the Azov-Black Sea region. Sevastopol, ECOSI-Gidrofizika, 2013. 193 p. (in Russian).
3. Nikonov A.A., Gusiakov V.K., Fleifel L.D. Assessment of the Tsunami Hazard on the Russian Coast Based on a New Catalogue of Tsunamis in the Black Sea and the Sea of Azov. Russian Geology and Geophysics. 2018, 59(2), 193–205. doi: 10.1016/j.rgg.2018.01.016
4. Nikonov A.A. A powerful tsunami. In the strait … Kerch. Priroda. 2016, 5, 29–38. (in Russian).
5. Vinokurov N.I., Korzhenkov A.M., Rodkin M.V. Seismic hazard assessment of the Kerch Strait region by archeoseismology data. Vopr. Inzh. Seismol. 2015, 42(2), 51–66 (in Russian).
6. Nikonov A.A. A powerful tsunami. In the strait … Kerch. Priroda. 2016, 7, 30–40 (in Russian).
7. Nikonov A.A. The main features of geodynamics, stress state and distribution of strong earthquakes in the Azov-Black Sea region. Fourth tectonophysical conference at the IPE RAS tectonophysics and topical issues of earth sciences. Institute of Physics of the Earth named after O. Yu. Schmidt RAS Moscow. 2016, 1, 493–501 (in Russian).
8. Lobkovsky L.I., Mazova R. Kh., Baranova E.A. and Tugaryov A.M. Numerical Simulation of Propagation of the Black Sea and the Azov Sea Tsunami through the Kerch Strait. Physical Oceanography. 2018, 25(2), 102–113. doi: 10.22449/1573–160X-2018–2–102–113
9. Baranova E.A., Mazova R. Kh. Tsunami Hazard for the Crimean Coast of the Black Sea and the Kerch Strait at the Catastrophic Tsunamigenic Earthquakes, the Locations of which are Close to that of the Historical Yalta Earthquake on September 12, 1927. Physical Oceanography. 2020, 27(2), 110–125. doi: 10.22449/1573–160X-2020–2–110–125
10. Bazykina A. Yu., Fomin V.V. Simulation of tsunami waves in the Azov-Black sea region. Fundam. Prikl. Gidrofiz. 2019, 12, 4, 21–31 (in Russian). doi: 10.7868/S2073667319040038
11. Ulomov V.I., Polyakova T.P., Shumilina L.S. et al. Experience in mapping earthquake sources. Seismicity and seismic zoning of Northern Eurasia. Moscow, IPE RAS. 1993, 1, 99–108 (in Russian).
Review
For citations:
Belokon A.Yu., Fomin V.V. Simulation of Tsunami Wave Propagation in the Kerch Strait. Fundamental and Applied Hydrophysics. 2021;14(1):67-78. (In Russ.) https://doi.org/10.7868/S207366732101007X