Didn’t the Japanese Tsunami come speeding across the water at 500ks an hour, I think that that is pretty fast!!! But who knows, it depends on the amount of energy causing the wave in the first place. We only know what we are told, and history is being re written every day, young people think chem trails are natural clouds, because they do not know a different world. If they refer back to specific events to prove these things are natural occurrence, you can be guaranteed they are referring to the results of previous “tests”. The polar vortex is a croc and clouds don’t have rainbow coloured oil slicks surrounding them before an earthquake. Remember when you knew something was going on when the birds were silent or they fled. The earth is unrecognisable now due to scientific meddling and perhaps now we are all going to have to pay and keep paying.