Amplitude characteristics of tsunamis waves in the Azov-Black Sea region
https://doi.org/10.7868/S2073667319040038
Abstract
A numerical simulation of the evolution of tsunami waves in the Azov-Black Sea basin was carried out for 10 elliptical foci, which corresponded to the already existing tsunami by underwater earthquakes. The time of the wave propagation to the coast of the Black and Azov Seas is calculated. It is from a few minutes for the nearest to the tsunami focus coastal regions to 4.5 hours for Odessa coast. The maximum sea level elevations along the coast of the Black and Azov Seas caused by the propagation of tsunami waves from zones of local earthquakes were obtained. The most dangerous coastal zones are identified. The sea level increase along the coast during the propagation of tsunami waves caused by earthquakes with magnitude about 7 reaches from tens of centimeters to more than 1 m. The changes of the amplitude characteristics of tsunami waves from the earthquake magnitude and the location of sources tsunami are shown. The displacement of the local tsunami focus to the deep part of the sea leads to growth of the amplitude of the level oscillations near the coast. The increase of the earthquake magnitude results in amplification of the sea level fluctuations, which may exceed the height of the initial perturbation.
About the Authors
A. Yu. Bazykina
Marine Hydrophysical Institute of RAS
Russian Federation
Russian Federation
Sevastopol
V. V. Fomin
Marine Hydrophysical Institute of RAS
Russian Federation
Russian Federation
Sevastopol
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Review
For citations:
Bazykina A.Yu., Fomin V.V. Amplitude characteristics of tsunamis waves in the Azov-Black Sea region. Fundamental and Applied Hydrophysics. 2019;12(4):21-31. (In Russ.) https://doi.org/10.7868/S2073667319040038
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