STRUCTURE OF THE UPPER PART OF THE EARTH’S MANTLE FROM OBSERVATIONS OF EARTHQUAKES WITH INTERMEDIATE DEPTHS OF FOCUS

摘要

A study of the earth's mantle was conducted on the basis of earthquakes occurring in the Pamir-Hindu Kush epicentral zone. This zone is notable for its local spatial position and the frequent occurrence of sufficiently strong (M = 5—6.5) earthquakes with depths of focus between 70 and 270 km. In order to improve the accuracy of the determinations of the geometric coordinates of the foci, five temporary seismic stations were set up in the immediate epicentral zone.