Why scientists say Japan's 'big one' could come soon

Japan gets earthquakes every day – but viral predictions of a July 5 megaquake, from psychics to feng shui masters, have spooked some travelers into canceling their trips. While scientists can’t predict quakes, the government warns a catastrophic "big one," the Nankai Trough megaquake could strike in the next 20 to 30 years, with damage potentially hitting $10 trillion. CNN's Hanako Montgomery reports. #CNN #News