Ken Ring’s quake theories – how scientific are they?
Can earthquakes be predicted? Astrological weather forecaster Ken Ring believes they can.
He says this weekend's full moon could be dangerous for Christchurch.
He's already told Australians to stay away and now he's telling Kiwis to avoid Christchurch's memorial day on Friday.
So how does he make such claims? And what does modern science make of his theories?
Tristram Clayton went looking for answers.
Watch the video.