Vestnik KRAUNC. Fiz.-Mat. Nauki. 2022. vol. 41. no. 4. pp. 32–46. ISSN 2079-6641

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MSC 86-10

Research Article

Estimating the increased deformations areas that occur during the preparation of Kamchatka earthquakes

M. I. Gapeev¹²

¹Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, 684034, Paratunka, Mirnaya str., 7, Russia

²Vitus Bering Kamchatka State University, 683032, Petropavlovsk-Kamchatskiy, Pogranichnaya str., 4, Russia

E-mail: owlptr@yandex.ru

The article is devoted to mathematical modeling of increased deformations areas of the Earth’s crust that occur during the preparation of Kamchatka earthquakes. For this purpose, a generalization of the classical model of the Earth’s crust co-seismic deformations, proposed by Yu. Okada, was made. The generalization is consisted in the introduction of increasing coefficients depending on the seismic efficiency. Based on the developed model, the deformation fields, that occurred during the preparation of two Kamchatka earthquakes, were simulated. It is shown that the areas of increased deformations extend hundreds of kilometers from the sources of upcoming earthquakes both on the surface of the Earth’s crust and in its thickness.

Key words: mathematical modeling, deformation of the earth’s crust, earthquake focus, seismic efficiency, pre-seismic anomalies

DOI: 10.26117/2079-6641-2022-41-4-32-46

Original article submitted: 02.12.2022

Revision submitted: 06.12.2022

For citation. Gapeev M. I. Estimating the increased deformations areas that occur during the preparation of Kamchatka earthquakes. Vestnik KRAUNC. Fiz.-mat. nauki. 2022, 41: 4, 32-46. DOI: 10.26117/2079-6641-2022-41-4-32-46

Funding. The work was carried out as part of the implementation of the state task АААА-А21-121011290003-0.

Competing interests. The authors declare that there are no conflicts of interest regarding authorship and publication.

Contribution and Responsibility. All authors contributed to this article. Authors are solely responsible for providing the final version of the article in print. The final version of the manuscript was approved by all authors.

The content is published under the terms of the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/deed.ru)

© Gapeev M. I., 2022

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Gapeev Maksim Igorevich – Postgraduate student of Vitus Bering Kamchatka State University, Petropavlovsk-Kamchatsky, Junior Researcher, Lab. of Acoustic Research, Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, Paratunka, Russia, ORCID 0000-0001-5798-7166.