Some Aspects of Aftershock Sequences of Major Earth-Quakes from 1994 to 2002 and an Estimate of the Attenuation Relationship for Strong Ground Motion in the Kivu Province, Western Rift Valley of Africa

The spatial distribution of the aftershock sequences of the (, Mb5.8), Masisi (, Mb5.1)<br>and Kalehe (, Mb5.9) earthquakes have been studied. From the area delimited by the<br>spatial distributions of aftershocks, the linear dimensions of the faults were estimated.<br>The fault area determined in this study correlates well with those of previous studies in<br>the Western Rift Valley of Africa including the and Upemba Rift.