Anatomy of an Earthquake

All our lives we have heard of it. Prepared for it. Feared it. The Big One. An earthquake so powerful it will obliterate Los Angeles. Tear down its skyscrapers. Set its hills afire. Drown it in the sea. But what will actually happen when one of the world's most famous time bombs-goes off? Based on the latest super-computer scenarios, we'll follow the quake moment by moment as it unleashes its phenomenal power on this world famous mega-city. But in an unexpected twist, we will come to discover that biggest danger of all comes not from the much-feared San Andreas Fault -but from an unseen-and only recently discovered-killer, buried deep beneath the surface- Scientists have discovered a "blind" or hidden fault, known as Puente Hills -not thirty or forty miles to the east, like the San Andreas-but directly beneath the heart of the city. And history shows that when this one goes off-it goes off BIG.