Electronic Supplement to
Depths of Earthquakes in South Africa

by Azangi Mangongolo, Fleur O. Strasser, Ian Saunders, and Ganesh W. Rathod

Table S2. Depths of Mining-Related Events with Focal Mechanism Solution

Event	Mw	References	Type of Study	Depth (km)
26 September 1990 Free State Gold Mines	5.0	Dziewonski et al. (1991)	Harvard centroid moment tensor solution	28.3 ± 8.8 (later revised to 5)
30 October 1994 Free State Gold Mines	4.9	Fan and Wallace (1995)	Regional moment tensor solution	9–12
		Bowers (1997)	Global moment tensor inversion using broadband data	2.3
25 September 1997 Far West Rand	4.1	Brandt and Saunders (2011)	Regional moment tensor solution using SASE temporary array data	2
5 December 1998 Far West Rand	4.1	Brandt and Saunders (2011)	Regional moment tensor solution using SASE temporary array data	1

SASE, South African Seismic Experiment.

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