WATCH | Powerful tremor rocks Gauteng

A powerful tremor shook large parts of Gauteng during the early hours of Sunday morning.

Residents in several areas took to social media platforms to express their shock and fear about the seismic activity, around 5.0 in magnitude.

It is understood that it happened around 2:38am.United States Geological Survey tweeted that a "notable earthquake" had been detected about 6km south east of Alberton.

One resident posted on Twitter: "The whole of Gauteng is still wide awake. And all the hadedas too. That was one hell of an earth tremor! Phew!"

Another said: "People in Johannesburg experienced an earth tremor big enough to wake them and question their sanity."

Johannesburg in Your Pocket said it is "already thinking of writing a guide to what to do in Joburg when you get woken by a tremor at 2:40?"

This is a developing story.

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