7 Japanese boats swept by 2011 tsunami found in Hawaii
Seven fishing boats believed to have been swept away by the March 2011 tsunami have washed ashore in Hawaii from February to April, according to an environmental nongovernmental organisation.
The Japan Environmental Action Network (JEAN) said another fishing vessel had turned up on the coast of Miyakojima island in Okinawa Prefecture.
The boats likely drifted on the Pacific Ocean for some time before riding a subtropical gyre current, the organisation said.
Other similar ships may be found in the future, sources said.
JEAN has been investigating the origins of the wreckage. Using vessel numbers, it has identified two of the seven boats as those of fishermen in Miyagi and Fukushima prefectures.
The Tokyo-based organisation is now trying to trace the five remaining boats.
The fisherman in Miyagi Prefecture, who abandoned his job due to his age, said he did not want the boat returned to him.
Meanwhile, JEAN said it has been unable to contact the boat owner in Fukushima Prefecture.
The boat found in March on Miyakojima island was confirmed as formerly belonging to a fisherman in Miyagi Prefecture.
While a conspicuous number of fishing boats drifted to the Pacific coast of North America around 2012, only a few have emerged on the coasts of Hawaii and Okinawa.
It is unusual that eight boats were found on the coasts within a three-month period, according to JEAN.
One reason the vessels stayed afloat is that many of them are made of fiberglass-reinforced plastic, a material that does not sink easily.
According to Environment Ministry estimates in 2012, about 5 million tonnes of debris from houses and boats were dragged out to sea following the Great East Japan Earthquake.
About 70 per cent of the debris sank to the seabed due to the characteristics of the materials, and the remaining 1.5 million tonnes is believed to be adrift on the ocean. Ships including fishing boats likely comprise about 1,000 tonnes.
“There’s a subtropical gyre in the northern Pacific Ocean that flows clockwise,” Kyushu University Prof. Atsuhiko Isobe explained.
