The New GPS Evidence for the Region of Bering Microplate
Yu. V. Gabsatarova, G. M. Steblova,b, and D. I. Frolovc
a Geophysical Survey, Russian Academy of Sciences, pr. Lenina 129, Obninsk, Kaluga Oblast, 249030 Russia
b Schmidt Institute of Physics of the Earth, Russian Academy of Sciences,
ul. Bol’shaya Gruzinskaya 10, Moscow, 123995 Russia
c Ioffe Physical Technical Institute, Russian Academy of Sciences, ul. Politekhnicheskaya 26, St. Petersburg, 194021 Russia
Received December 9, 2010; in final form, May 25, 2011
Abstract—The question concerning the integrity of major tectonic plates is still unclear for several regions
covering the plate junction zones. The Northeast Asia is one such region, where there is no common concept of
the configuration of plate boundaries. From the classical viewpoint, the dynamics of Northeast Asia is deter-
mined by the superposition of the relative rotations of the three major plates (Eurasian, North American and
Pacific). According to the alternative viewpoint, the fragments that were split from these plates rotate indepen-
dently in the form of microplates (Bering, Okhotsk, and Amur). The analysis of kinematics for the GPS stations
located in eastern Chukotka, western Alaska, and on the Bering Sea islands suggests the existence of the Bering
microplate rotating clockwise relative to the North American plate.
DOI: 10.1134/S106935131302002X
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