CTBT: Science and Technology 2013 Conference

Vp and Vs Tomography Beneath the Kalabsha Area, Lake Nasser, Aswan, Egypt

Not scheduled

Poster Theme 1: The Earth as a Complex System

Speaker

Abubaker Ahmed Shater Ahmed (National Research Institute of Astronomy and Geophysics (NRIAG))

Description

Tomographic inversion is applied to determine detailed three-dimensional velocity (Vp, Vs) structures beneath the Kalabsha area, Aswan by inverting the arrival time data from 731 events.
The results obtained from three- dimensional inversion shows a low P-wave velocity zone in the north-western side of the Kalabsha area elongated to the east direction around Seiyal fault and to the south between Khour Ramla and Kurkur faults extended down to 6 km. A high velocity block appears in the northeast of the studied area around Khour Ramla fault at depth 1 Km extended horizontally to south and down to 6 km.
High S-wave velocity zone appears in the northeastern side of the Kalabsha region around Khour Ramla fault extended horizontally to south and extended down to 6 Km, tending to southeast direction. Low S-wave velocity zone appears in the south western Kalabsha fault extended down to 14 Km.