Eddie Bernard, director of the Pacific Marine Environmental laboratory in Seattle, said scientists model how a tsunami will strike a coast - even far away.
Following the March 11, 2011 8.9-magnitude earthquake near Japan, a model of wave heights above normal sea level across the region and how long after the 0546 GMT earthquake they are expected.
A new report by the National Research Council suggests that U.S. naval forces should to examine and strengthen capabilities in the Arctic for climate change.