As the twentieth anniversary of the Indian Ocean tsunami approaches, rediscover the story of the worst natural disaster in history with new interviews and never-before-seen archive footage. #TsunamiRaceAgainstTime is now streaming on Disney and Hulu. | National Geographic TV

🌊 The Deadliest Tsunami in Recorded History On December 26, 2004, the world witnessed the most deadly tsunami ever documented. A massive 9.1–9.3 magnitude undersea earthquake struck off the coast of Sumatra, Indonesia. It was so powerful it shifted the Earth’s axis and created a series of tsunami waves that spread across the Indian Ocean at the speed of a jet plane. Within hours, coastlines in 14 countries were hit — including Indonesia, Sri Lanka, India, Thailand, and the Maldives. The Impact