Abstract: This paper describes the structural profiles across such main boundaries between earth's crust and mantle as: granitic layer (G),inner granitic layer (G₁),Conrad boundary (C),M discontinuity (M),and M₁ and M₃ in upper mantle,for which a coverted wave has been used in the study area (E118°56′—119°40′,N31°10′—31°50′).The results obtained indicate that NE-trending structures are dominant beneath this area,and then NW-trending structures.The deep faults have been well developed and the two shocks have occurred at the granite layer.It has been concluded that the earthquakes tend to have occurred along the edge of the uprising zone or along the gradient zone where the depths to the boundaries vary,abruptly or at the intersections of the deep fault in different directions.