The crustal velocity structure in Aswan area, southern Egypt has been investigated by means of the joint hypocenter determination method (JHD), using initial P-wave motion from Aswan seismological data. The velocities of 4 horizontal layers model including a half space were directly determined by the least square method in order to select the best fitting model between calculated assumption and the real observations.
However, eventually the reasonable result due to this structure model come out, the velocity of P-wave in each layer is 4.2, 6.2, 6.8, and 7.3 km/s and its thicknesses are 1, 4, 10.5 and 16.5 km respectively. The stations AHD, GAL, KSR, GRW, KUR, MAN have minus signs in station P-wave travel time corrections and their values: - 0.017, -0.016, -0.187, -0.028, -0.028, -0.048 and other stations SKD, NMR, GMR, WKL, WAL, KRL, NAL have positive sign and their values: 0.005, 0.049, 0.082, 0.040, 0.066, 0.025 and 0.057 respectively.