noaa's video: NOAA Ocean Today video: Tsunami Strike: Japan Part 3 of 3: Warning Systems

On March 11, 2011 a 9.0 magnitude earthquake off the Pacific coast of Japan generated a tsunami. This series of ocean waves sped towards the island nation with waves reaching 24 feet high. The result was devastation and utter destruction. "Tsunami Strike: Japan" is a three-part series that focuses on the science and technology behind the tragedy. Learn what how it happened from the time the earthquake erupted at 14:46 JST to the tsunami warnings issued three minutes later. Part 1: http://oceantoday.noaa.gov/tsunamistrikedestruction/ Part 2: http://oceantoday.noaa.gov/tsunamistrikepropagation/ Part 3: http://oceantoday.noaa.gov/tsunamistrikewarning/