The South African National Seismograph Network automatic locator detected a seismic disturbance in the West Rand gold mining area on Tuesday, 23 January, 2018 at 17:47 South African Standard Time. The event had a primary magnitude of M=2.8. This is an automatic location and magnitude which may change once reviewed by a seismologist.
Moderate seismicity had occurred before in the West Rand and Far West Rand gold mining areas with four events of magnitude M=3.9 from 2000 till date; the list of these previous events is given below:
Date Time Lat. Lon. Region and comments Depth Mag
y. m. d. h. m. s. (Deg.) (km) ML
——————————————————————-
5 5 23 6 9 11.3 -26.36 27.51 Far West Rand gold mines 2.0 3.9
5 7 13 14 51 57.6 -26.39 27.35 Far West Rand gold mines 2.0 3.9
5 7 16 6 57 32.2 -26.44 27.38 Far West Rand gold mines 2.0 3.9
10 6 14 11 51 56.4 -26.47 27.50 Far West Rand gold mines 2.0 3.9
