Seismic activity in relation to fault systems in southern Ghana

This paper discusses microearthquakes and their relationship to the fault systems of southern Ghana. Local earthquakes from 1973 to 1997 were recorded at seismograph stations in the study area. The data obtained were used to investigate the spatial link between the faults and the earthquakes. The arrival time difference was used for locating the epicenters. Most of the epicenters of the located earthquakes were distributed along the intersection of two major fault systems, the Akwapirn fault zone and the Coastal Boundary fault, suggesting that the faults are active. A microseismic map of part of southern Ghana depicts this. (C) 2002 Elsevier Science Ltd. All rights reserved.