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From 1994 to the present, records of deformations of the Earth?s crust, which are measured by a laser displacement meter, called ?deformograph?, are regularly recorded. This meter records changes in the distance between the mirrors fixed on the rock inside the mountain gallery in two directions: North-South and West-East. Such observations are carried out in the Gorny Altai region, in Kazakhstan and near Lake Baikal. One of the long-acting deformographs is installed in the gallery of the Talaya seismic station in ...

Regular measurement of rock deformation processes makes it possible to make judgments about the nature of the deformations of the Earth's crust, as well as the likely precursors of earthquakes near the area where these data are obtained. Therefore, the continuous operation of measuring devices that record such deformations is extremely important. When measuring by laser methods in a normal atmosphere, the distance of measurements can be significant, up to 25 meters and higher. The disadvantage of such measurements...