Tremors: 'Not a result of mining'

Out here in boksburg we do get tremors from time to time, Usually lasting a few seconds and its over not this tremor, it shook our building and surrounding buildings for atleast an entire minute. this was definitely not as a result of mining!!  
Martin Pienaar 2014-08-05 03:21:05 PM
It was BEAST MtWarira practicing scrumaging with the Sharks.