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Seismicity of Katanga and Western Zambia, southwest of East African Rift System, from 1960 to 1971

INSTITUT POUR LA RECHERCHE SCIENTIFIQUE EN AFRIQUE CENTRALE, LWIRO, D/S BUKAVU, Rep. of Zaire

Abstract

For the period from 1960 to January 1971, the seismicity of Katanga and Western Zambia was investigated. Three clearly separated zones of seismic activity were detected: the zone of the Upemba Graben which follows the Kibarian belt, the zone of the Moero Graben with a continuation of epicenters in a southwest extension of its direction of strike and, finally, the zone of Western Zambia with a remarkable accumulation of earthquakes at 13.7°S and 26°E.

The annual frequency N of earthquakes for a magnitude interval of M = 0.5 resulted in log N = 3.20 – 0.72M, provided the formula by Richter (1958) log N = a – bM is considered correct.

Footnotes

^* Present address: Freie Universität Berlin, Institut für Geophysik, Rheinbabenallee 49, 1 Berlin 33, Germany.

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