One-Dimensional Velocity Model for Ife Seismic Station from Inversion of Teleseismic P-wave Travel time Data

Abstract

A One-Dimensional inversion of P-wave travel time data observed at IFE seismic station between July 2009 when it was installed and July 2011 was carried out with the aim of obtaining the velocity model for the station region. The approach was based on fitting a series of straight lines to the travel time data. The results obtained showed that the P-wave velocity varies between 8.5 km/s and 12 km/s, which indicates that all the seismic rays’ bottom and had their turning point in the mantle. The plot of the velocity-depth profile reveals a three layer mantle with a transition at a depth of about 700 km corresponding to the transition between the upper and the lower mantle.