The 1969 Tulbagh earthquake occurred at 20:03:33 UTC on 29 September. It had a magnitude of 6.3 Mw and a maximum felt intensity of VIII (Severe) on the Modified Mercalli intensity scale. It caused widespread damage in the towns of Ceres, Tulbagh and Wolseley and led to 12 deaths.[1] The earthquake was a result of strike-slip faulting along a NW-SE trending near vertical fault plane, as shown by the focal mechanism and the distribution of aftershocks.[2]
^Green, R.W.E.; Bloch, S. (1971). "The Ceres, South Africa, earthquake of September 29, 1969. 1. Report on some aftershocks". Bulletin of the Seismological Society of America. 61 (4): 851–859. doi:10.1785/BSSA0610040851. S2CID 130174309.
^Foster, A.N.; Jackson, J.A. (1998). "Source parameters of large African earthquakes: implications for crustal rheology and regional kinematics". Geophysical Journal International. 134 (2): 422–448. Bibcode:1998GeoJI.134..422F. doi:10.1046/j.1365-246x.1998.00568.x.
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