Using GIS software, a study of the topography of Cape Tyteri and the surroundings located within the Baikal-Lena Nature Reserve on the northwestern shore of Lake Baikal was conducted. Unmanned aerial photography data processed using photogrammetry provided a factual material. As a result, an orthophotomap and a digital terrain model of the work area were built. On their basis, a geomorphological map was compiled, landforms were characterized in detail, and seismogenic ruptures, i.e., outcrops of the paleoearthquake source on the earth’s surface, were shown. It was revealed that during the existence of valleys in the studied area, the basis of erosion changed sharply, i.e. level of Lake Baikal, where streams flowed. The discovery of a fragment of the Baikal terrace deformed during a paleoearthquake confirmed that about 50,000–44,020 years ago the level of Lake Baikal was 118–120 m higher than at present. Cape Tytery have not been developed at that time yet. Comparable methodologies and analysis can be applied in different places to examine the structure and Quaternary history of terrain evolution.

Marina A. Lunina
Senior Laboratory Assistant
Tectonophysics Laboratory
Institute of the Earth’s Crust, Siberian Branch
of Russian Academy of Sciences
128, Lermontova Str., Irkutsk, 664033, Russia
Student
Institute of Mathematics and Information Technologies
of Irkutsk State University
20, Gagarin Boulevard, Irkutsk, 664003, Russia
e-mail: lounina2006@inbox.ru
ORCID: 0009-0000-1027-5794

Oksana V. Lunina
Doctor of Geological and Mineralogical Sciences
Principal Researcher
Tectonophysics Laboratory
Institute of the Earth’s Crust, Siberian Branch
of Russian Academy of Sciences
128, Lermontova Str., Irkutsk, 664033, Russia
e-mail: lounina@crust.irk.ru
ORCID: 0000-0001-7743-8877
ResearcherID: A-8635-2014
Scopus AuthorID: 6603849679
SPIN-code: 1220-3802
Author ID: 65046

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