Tremor through large area in Mpumalanga Province,South Africa

I would especially like to find out if any South African members felt this,around 7 minutes to 5pm local time? I was sitting in my garden in
Mpumalanga Province,when i felt a tremor like a vibration underground,which lasted for about 20 seconds,maybe 30.I heard my hubby and son outside a
minute or 2 later-my husband said it could be heard all the way to the roof,like a rattle.

Where i was sitting,with one foot on a rock,i felt the rock start to vibrate,and then realised it was the ground beneath,all over.

Thing is,my best friend in the town outside which we live,said her daughter felt it too-but her daughter's +- 250 clix away in Steelpoort.My husband saw on FB that it was felt in White River,+- 80 clix.That's a large area.

None of our animals acted weird before,and this is geologically a very stable region.

Anyone on here have an idea what that could have been?Or felt it,local members?
Thank you,have a good day,all.

edit on 7-7-2013 by Raxoxane because: typos

edit on 7-7-2013 by Raxoxane because: typo

Source: http://www.abovetopsecret.com/forum/thread957648/pg1

URI Facebook Home Ncaa Basketball Tournament 2013 Robert Ebert chelsea handler hannibal Lena Headey