A SEISMOTECTONIC MAP OF EASTERN SIBERIA
https://doi.org/10.5800/GT-2015-6-3-0182
Abstract
The paper reviews goals and objectives, stages and the content of seismotectonic studies conducted in Eastern Siberia. Such studies are based on a comprehensive analysis of geological and geophysical data and provide for establishing whether the local earthquakes are of tectonic origin and revealing their relationships with recent geodynamic processes in the area under study. Seismic hazard assessment and evaluation of tectonic processes are the two major, closely interrelated aspects of seismotectonic studies. The latter are generally conducted in combination with seismic studies prior to the stage of detailed seismic zonation (DSZ) which is followed by seismic micro-zonation (SMZ). In three stages of seismotectonic studies, we analyse specific geological structures, reveal the regional dynamics of seismotectonic processes, clarify details of potential seismic hazard locations and identify sites of the potential instantaneous deformation of the crust which may take place due to active faulting. Based on results of the long-term studies conducted by the authors, a seismotectonic map of Eastern Siberia is compiled. The paper briefly reviews the methods of mapping and refers to data on active faults and neotectonic structures revealed in the area under study, which are closely related to regional earthquake sources.
About the Authors
Valery S. Imaev
Institute of the Earth’s Crust, Siberian Branch of RAS
Russian Federation
Russian Federation
Doctor of Geology and Mineralogy, Chief Researcher,
128 Lermontov street, Irkutsk 664033
Lyudmila P. Imaeva
Institute of the Earth’s Crust, Siberian Branch of RAS
Russian Federation
Russian Federation
Candidate of Geology and Mineralogy, Senior Researcher,
128 Lermontov street, Irkutsk 664033
Oleg P. Smekalin
Institute of the Earth’s Crust, Siberian Branch of RAS
Russian Federation
Russian Federation
Candidate of Geology and Mineralogy, Senior Researcher,
28 Lermontov street, Irkutsk 664033
Boris M. Koz’min
Institute of Diamond and Precious Metals Geology, Siberian Branch of RAS
Russian Federation
Russian Federation
Candidate of Geology and Mineralogy, Leading Researcher,
39 Lenin avenue, Sakha (Yakutia) Republic, Yakutsk 677007
Nikolai N. Grib
Technical Institute (branch) of M.K. Ammosov North-Eastern Federal University
Russian Federation
Russian Federation
Doctor of Technical Sciences, Professor, Deputy Director,
16 Kravchenko street, Sakha (Yakutia) Republic, Neryungri 678960
Anatoly V. Chipizubov
Institute of the Earth’s Crust, Siberian Branch of RAS
Russian Federation
Russian Federation
Doctor of Geology and Mineralogy, Senior Researcher,
128 Lermontov street, Irkutsk 664033
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For citations:
Imaev V.S., Imaeva L.P., Smekalin O.P., Koz’min B.M., Grib N.N., Chipizubov A.V. A SEISMOTECTONIC MAP OF EASTERN SIBERIA. Geodynamics & Tectonophysics. 2015;6(3):275-287. (In Russ.) https://doi.org/10.5800/GT-2015-6-3-0182
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