This weekend in Christchurch the minds of many Cantabrians were on Ken Ring's prediction of a very large earthquake for the region.
Some people are arguing last night's 5.1 aftershock, is evidence Mr Ring was right.
But did Mr Ring predict a 5.1 aftershock, which would cause very little damage and no injuries at all? And if that had been the earthquake he predicted, would so many Cantabrians have left the city or spent the weekend there in fear?
What, exactly, did Mr Ring predict?
Watch the video to hear his words, over the past six months.