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等用塔吉克共和国加尔姆地区1955年至1976年的地震观测资料,对不同震源深度浅层弱震(K≥7)的活动性进行了研究,将加尔姆地区按地震类型和地质构造划为三个地震活跃区.第一活跃区受天山西南向构造控制,第二活跃区与Пeтp山构造有关,第三活跃区受达尔瓦查一卡拉尔断裂控制.资料表明,大约85%的地震集中于地壳浅层10公里的范围内,地震数目随深度的增加而减少,仅有个别地震的深度达35公里.尽管这三个活跃区的地质构造和地震类型不同,但这三个区内深于10公里的地震减少量却是一致的,明显的区别仅在浅层10公里内.
Using seismic observations from 1955 to 1976 in the Garm area of the Tajik Republic, we studied the activity of shallow seismic (K ≥ 7) depths at different focal depths and classified the Garm area into three seismic types and geological structures The first active area is controlled by tectonics in the southwest of Tianshan Mountains, the second active area is related to the structure of the Plena, and the third active area is controlled by the Darwacha-Calar fault.The data show that about 85% of the earthquakes are concentrated in the crust Within the range of 10 km shallow, the number of earthquakes decreases with the increase of depth, and only a few earthquakes reach a depth of 35 km. Although the geological structures and the types of earthquakes in the three active areas are different, the depths of these three areas are deeper than 10 Earthquake reduction in km is the same, the obvious difference is only within 10 km of shallow.