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Refinement of the Deep Structure and Tectonic Movement Kinematics in the Area of the 2001 Salsk EarthquakeBased on New Geophysical Dataстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 мая 2020 г.
- Авторы: Gorbatikov A.V., Gabsatarova I.P., Rogozhin E.A., Stepanova M.Yu, Kharazova Yu V., Sysolin A.I., Pogrebchenko V.V.
- Журнал: Seismic Instruments
- Том: 55
- Номер: 6
- Год издания: 2019
- Первая страница: 633
- Последняя страница: 641
- Оригинальные версии: Уточнение глубинного строения и кинематики тектонических движений в области Сальского землетрясения 2001 г. на основе новых геофизических данных
- DOI: 10.3103/S0747923919060045
- Аннотация: The article presents the results of a comprehensive study of seismotectonic, geological-geophysical,geodynamic, and seismological data in the region of the Salsk earthquake of May 22, 2001, M = 4.7, inthe low-seismic region of the junction of the Scythian Plate and the East European Platform are presented.The parameters of this earthquake source associated with a deep tectonic structure identified by the microseismicsounding method (MSM) are estimated based on seismological and macroseismic data. The MSMsection through the region of the Salsk earthquake was obtained by a submeridional profile about 65 km longacross the strike of the Manych deflection zone. It was established that the hypocenter of the 2001 Salskearthquake was confined to the Salsk fault zone included in the system of the Manych faults. This fault isexpressed in a section in the form of a narrow subvertical strip with low seismic wave velocities traced fromthe Earth’s surface to a depth of more than 40 km. Immediately in the area of the earthquake below a depthof 10 km, the recognized fault zone has a local expansion at the point of transition through the plane whenthe sedimentary cover contacts with the Proterozoic basement. The assessment of the hypocentral positionand source mechanism solution (a gently dipping thrust of the northern side at an angle of 25°–33°) correlateswell here with the depth and inclination of the surface of the Proterozoic basement, the elements ofwhich are also traced in the MSM section.
- Добавил в систему: Степанова Марина Юрьевна