Calibration of the seismic velocity structure and understanding of the fault formation in the environs of the Orkney M5.5 earthquake, South Africa

Hiroyuki Ogasawara, Ritsumeikan University, Kusatsu, Japan, Musa Siphiwe Manzi, University of Witwatersrand, School of Geosciences, Wits, South Africa, Raymond J Durrheim, University of Witwatersrand, Johannesburg, South Africa and Hiroshi Ogasawara, Ritsumeikan Univ, Kusatsu, Japan