The U.S. Geological Survey (USGS) reported that Johannesburg, South Africa, was shaken on Sunday morning by an earthquake of a 5.0 magnitude.
The USGS said the earthquake occurred at 0038 GMT at a depth of 10 km (6 miles).
Some Johannesburg residents reported feeling tremors.
“Earth tremor in Johannesburg. Longest and strongest I have felt! Went on for about 30 seconds, it felt like,” one resident wrote on Twitter.
Security risk and crisis management consultancy Crisis24 said there were no reports of damage or casualties as a result of the earthquake.