Gravity and Displacement Variations in the Areas of Strong Earthquakes in the East of Russia

статья в журнале
Авторы: Timofeev V.Y.   (ИНГГ СО РАН)   Kalish E.N.     Stus Y.F.     Ardyukov D.G.   (ИНГГ СО РАН)   Valitov M.G.     Timofeev A.V.   (ИНГГ СО РАН)   Nosov D.A.     Sizikov I.S.     Boiko E.V.   (ИНГГ СО РАН)   Gornov P.Y.     Kulinich R.G.     Kolpashchikova T.N.     Proshkina Z.N.     Nazarov E.O.     Kolmogorov V.G.    
дата публикации: 2018
The modern gravimetry methods are capable of measuring gravity with an accuracy of up to 10-10 of the normal value, which is commensurate with the accuracy of the up-to-date methods of displacement measurements by satellite geodesy. Significant changes, e.g., in the coseismic displacements of the Earth's surface are recorded in the zones of large earthquakes. These changes should manifest themselves in the variations of gravity. Absolute measurements have been conducted by various modifications of absolute ballistic gravimeters GABL since the mid-1970s at the Klyuchi point (Novosibirsk) in the south of the West Siberian plate. Monitoring observations have been taking place in the seismically active regions since the 1990s. In this paper we consider the results of the long-term measurements of the variations in gravity and recent crustal displacements for different types of earthquakes (the zones of shear, extension, and compression). In the seismically active areas in the east of Russia, the longest annual series of absolute measurements starting from 1992 was recorded in the southeastern segment of Baikal region.
первоисточник: Izvestiya, Physics of the Solid Earth
том: 3
страницы: 430-443
внешние ссылки:
WoS   WoS (цитирование)






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