Deadly Pacific

S1 E6: The Pacific Ring of Fire is a hotbed of volcanoes, mega-quakes and giant tsunamis. 500 million people live in ever-present danger along its edges. Cutting-edge CGI, based on the latest ocean floor maps, `drain' the Pacific Ocean to reveal the deadly geological forces behind some of Earth's most destructive natural disasters. And it reveals Seattle, Tokyo and New Zealand could be next in line to be hit by the `big one'.