Japan experts warn of future risk of giant tsunami
Date: 04/01/2012
Revised estimates of the potential impact from an earthquake off Japan's southern coast show much of the country's Pacific shore could be inundated by a tsunami more than 34 meters (112 feet) high.
A government-commissioned panel of experts says a tsunami unleashed by a magnitude-9.0 earthquake in the Nankai trough, which runs east of Japan's main island of Honshu to the southern island of Kyushu, could top 34 meters.
An earlier forecast in 2003 put the potential maximum height of such a tsunami at less than 20 meters (66 feet).