4.6 magnitude earthquake hit SA Johannesburg this morning

JOHANNESBURG – A second earthquake within 3 weeks.
Johannesburg – A 4.6 magnitude earthquake hit Johannesburg in the early hours of Friday morning, the US Geological Survey said on its website.The quake, which happened around 01:00, is the second in South Africa in less than three weeks.
It occurred 12km west of Orange Farm, a township south of Johannesburg.
On 5 August, a 31-year-old man was killed in a mining village near Orkney, North West when the 5.5 magnitude earthquake struck the region.At least 34 miners were injured by the earthquake, and more than 600 houses were damaged.