MODERN SEISMICITY OF THE NORTHERN TIEN SHAN DUE TO ITS TECTONIC STRUCTURE

Abstract

A detailed description of the fault-block structure of the Northern Tien Shan. It is shown that the fragmented structure of the region, clearly expressed in a cross-lattice nature of the fault system vpozdnechetvertichnoe time was "skonsolidirovana" several main blocks: Kyrgyz Issyk-Kul, Trans-Ili, Chu Kendyktassky and Charyn. That is the fault of these restrictions block the main focus seismicity of the region and, accordingly, in assessing the seismic hazard as area sources, these units must be selected.

The fractures and blocks has always been considered as related structural forms. Continuity concepts and fault blocks, and their widespread use in the upper part of the lithosphere given the fragile foundation of many geological and structural and geophysical (including seismic) studies of the lithosphere structure regarded as a fault-block (Hain, 1994). At the same time the seismic process in seismic zones caused tectonophysical parameters of fault-block protection of the lithosphere, the degree of its relative mobility, and other parameters (Sherman, 2014). Therefore, the identification of these parameters in order to assess the seismic hazard of different areas is very important.