The tsunami set off by Japan's major earthquake is currently higher than some Pacific islands which it could wash over, the International Federation of Red Cross and Red Crescent Societies said on Friday.
"Our biggest concern is the Asia and Pacific region, where developing countries are far more vulnerable to this type of unfolding disaster. The tsunami is a major threat," Paul Conneally, spokesman for the Federation, the world's biggest disaster relief network, told Reuters in Geneva.
"At the moment, it is higher than some islands and could go right over them," he said.
The biggest earthquake to hit Japan in 140 years struck the northeast coast on Friday, triggering a 10-metre tsunami that swept away everything in its path, including houses, cars and farm buildings on fire.