Japan's Tsunami: How It Happened (2011) is a Documentary, TV Movie film that follows an investigation by Professor of Geological Sciences, Roger Bilham, of the science behind the earthquake and tsunami off the coast of Japan on March 11, 2011. Japan's Tsunami: How It Happened is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 6.0 out of 10 from 2 votes. Fans of documentary movies may also want to explore similar titles below.