ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2016, Vol. 13, No. 5, pp. 133-141

Geophysical satellite monitoring and seismic activity of the North-West of Russia

T.V. Guseva 1 , I.S. Krupennikova 1 , A.N. Mokrova 1 , V.P. Perederin 1 
1 O.Yu. Schmidt Institute of Physics of the Earth RAS, Moscow, Russia
Accepted: 16.09.2016
DOI: 10.21046/2070-7401-2016-13-5-133-141
Here we present the results of the study of modern intraplate geodynamics of Northwest Russia with the use of satellite geodetic technologies, started by specialists of the RAS and foreign scientists as international cooperation at the end of the last century. In this study we defined that dome-shaped uplift of the shield continuing at a speed up to 9 mm/year, in the Russian part reaches 4 mm/year and gradually replaced by subsidence. Horizontal displacements of GPS points, calculated in ITRF2008 coordinate system, have a North-East direction and average speed of 21.6 mm/year on the North and up to 26.3 mm/year on the South. The obtained values for linear and strain rate range from -57•10-9 to 47•10-9. The anomalous zones of compression and stretching on the North of Ladoga and Onega lakes are discovered. Based on the data received from the regional catalog of earthquakes of the Kola Peninsula, we compute seismic energy released as a result of tectonic earthquakes. In the North-Western part a number of well-ordered structures are revealed, where the total seismic energy reaches values of the order of 106-108 J/km2. These structures are oriented from the South-West to North-East. At the same time, the South-Eastern part of the study area in the period under review was aseismic. Released seismic energy was compared with a deformation field of this region.
Keywords: GNSS, satellite measurements, seismic activity, motion, deformation, monitoring, Kola Peninsula, Ladoga, Onega
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