Up-To-Date Geodynamics and Seismicity of Central Asia

摘要: The analysis of the seismicity in central Asia shows its distribution within a “triangle” maximal inner-continental seismic activity, which is situated between south edge Lake Baikal and Himalayas. coincides with Asian transit zone divides north Eurasian Indian lithosphere plates provides transfer relaxation tectonic stresses that arise them. consists numerous crust blocks different sizes. Blocks’ boundaries are often represented by not only single faults but relatively wide interblock zones characterized intensive shattering rocks releasing significant quantity energy. most active limited Pamirs, Tien Shan, Bayanhar as well Plate. energy along each them reaches ≥ 5?1015 J, while other it doesn’t exceed 3?1012-2?1015 J. majority events took place just these zones. total generally diminished away from boundary Plate, sometimes releases inner parts at distance 500-1500 km plate boundary. differ subduction collision depth their penetration same time rather near to volume realizing. examination intensives earthquakes occur regions sharp changes geodynamic conditions. On whole part under influence indenter, causes prevailing transpression tectonics. An abnormal high depends deep continuation slab (Pamirs, Himalayas), displacements strike-slips thrusts due processes unhomogeneity (Tien Bayanhar), conditions because movement supposed mantle plumes (north Mongolia, region).