It sounds like a load of rubbish: A detection system that will warn of an incoming earthquake up to a minute before it actually hits.
In fact earthquake warning systems are already up and running in Japan, Taiwan and Mexico.
Residents of Tokyo who had signed up to the Japanese system had about 80 seconds of warning before the devastating March 11 quake.
Experts say even a five second warning could reduce casualties by 80 percent.
Now Christchurch company Roam3 says it has perfected its own early warning system.
Tristram Clayton went to see if it really works.
Watch the video.