Electronic Supplement to
Depths of Earthquakes in South Africa

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

This electronic supplement contains Tables S1 and S2 that provide the available earthquake depths and its uncertainty for selected tectonic and mining-related earthquakes, respectively. The tables further provide information gathered from reference sources and also describe the method used to calculate the hypocentral depth.

Tables

Table S1. Instrumentally determined depths of tectonic earthquakes in South Africa, published in the literature.

Table S2. Depths of mining-related events with focal mechanism solution.

References

Bowers, D. (1997). The October 30, 1994, seismic disturbance in South Africa: Earthquake or large rock burst? J. Geophys. Res. 102, no. B5, 9843–9857.

Brandt, M. B. C., and I. Saunders (2011). New regional moment tensors in South Africa, Seismol. Res. Lett. 82, no. 1, 69–80.

Dziewonski, A. M., G. Ekström, J. H. Woodhouse, and G. Zwart (1987). Centroid-moment tensor solutions for October–December 1986, Phys. Earth Planet. In. 48, 5–17.

Dziewonski, A. M., G. Ekström, J. H. Woodhouse, and G. Zwart (1991). Centroid-moment tensor solutions for July–September 1990, Phys. Earth Planet. In. 67, 211–220.

Fan, G., and T. Wallace (1995). Focal mechanism of a recent event in South Africa: A study using a sparse very broadband network, Seismol. Res. Lett. 66, no. 5, 13–18.

Foster, A. N., and J. A. Jackson (1998). Source parameters of large African earthquake: Implications for crustal rheology and regional kinematics, Geophys. J. Int. 134, 422–448.

Green, R. W. E., and S. Bloch (1971). The Ceres, South Africa, earthquake of September 29, 1969. I. Report on some aftershocks, Bull. Seismol. Soc. Am. 61, no. 4, 851–859.

Jensen, B. L. (1991). Source parameters and seismotectonics of three earthquakes in the stable continental interior of Africa, M.Sc. Thesis, Memphis State University, Memphis, Tennessee.

Krüger, F., and F. Scherbaum (2014). The 29 September 1969, Ceres, South Africa, earthquake: Full waveform moment tensor inversion for point source and kinematic source parameters, Bull. Seismol. Soc. Am. 104, no. 1, 576–581.

Shudofsky, G. N. (1985). Source mechanism and focal depths of East African earthquakes using Rayleigh-wave inversion and body-wave modeling, Geophys. J. Roy. Astron. Soc. 83, 563–614.

Wagner, G. S., and C. A. Langston (1988). East African earthquake body wave inversion with implications for continental structure and deformation, Geophys. J. Int. 94, no. 3, 503–518.

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