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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


 The Council for Geoscience (CGS) has announced the appointment of Mr Mosa Mabuza as the Chief Executive Officer (CEO). The announcement was made this morning by the Chairperson of its Board, Dr Humphrey Mathe. The position was occupied by Mr Simon Sikhosana until his retirement in November 2016. Mabuza was subsequently seconded to the CGS by the Department of Mineral Resources to act as its interim CEO until the position was permanently filled. During his tenure on this role, he has managed to reprioritize geological mapping by championing the refocus of the organization towards a geo-scientific programme that seeks to map South Africa at a scale of 1: 50 000. This appointment comes into effect immediately.

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The Council for Geoscience (CGS) has on Monday the 19th of June 2017 handed over geological maps to the Saldanha Bay Municipality. This, as the CGS is currently embarking on an intensive, integrated and multidisciplinary 10 year geological mapping programme that will see the country mapped at a scale of 1:50 000. The announcement was made early this February at the Mining Indaba by the Minister of Mineral Resources, Mr Mosebenzi Zwane. Accordingly, this sets the tone for the CGS as it begins to integrate the pockets of geological information that exist, as stipulated in its plan of action of the 10 year mapping programme. The map sheets, which cover the Vredenburg, Velddrif and Saldanha areas, were compiled as part of the 1:50 000 scale map series, based on aerial photographic and field mapping that was completed some years ago  led by a former employee of the CGS and now retired geologist Dr Peter Siegfried, and Dr Dave Roberts (deceased). The cartographic work was undertaken by Ms Elmi Pretorius (also former employee) and others at the CGS Head Office. Prior to the actual handover, Dr Siegfried painstakingly explained the geology of the areas covered by the maps. The maps accompanied by a sheet explanation sheet that provides a description of the geological units and their history of formation, were handed over to the Executive Mayor of the Saldanha Bay Municipality, Councilor Marius Koen.

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