A tsunami has been observed for the first time on radar , an oceanographer said . It 's a software challenge that we show we can achieve '' for the West Coast , Largier told CNN Tuesday . That was the March 2011 tsunami that devastated Japan . The West Coast already has a high - frequency radar system for the ocean . Southeast Asia , parts of the U.S. East Coast would have to build radar systems from scratch .
A tsunami has been observed for the first time on radar , an oceanographer said . That was the March 2011 tsunami that devastated Japan . The West Coast already has a high - frequency radar system for the ocean . Southeast Asia , parts of the U.S. East Coast would have to build radar systems from scratch .