Hairdresser and Pub Talk

when at the haidresser last Saturday, I heard one of the customers explain his theory that the Asia quake disaster was triggered by someone who planted a big bomb underwater. I heard the same theory explained in the pub a few days later. How do people come up with that sort of things? I suspect because they cannot comprehend how it can happen naturally nor the magnitude of it. Good job, the BBC has a simple and good explanation on how it happened.