Radioactive or Not, Tsunami Debris Could Seriously Impact US's, Canada's West Coasts
by Jon Letman
20 February 2012
Pacific coastal communities prepare for possible impacts of marine debris from Japan's triple disaster.
In the age of constant crisis coverage, it is easy to forget that disasters don't just end once the cameras move on. On the contrary, they morph into new situations, sometimes improved, but often more complex and severe. In the case of Japan's earthquake-tsunami-nuclear catastrophe, part of that tripartite disaster floated out to sea as debris where it has been drifting for months to destinations unknown.
According to Japan's Ministry of Environment's Waste Management Division, the 9.0 magnitude temblor and tsunami generated some 25 million tons of debris in total, literally sucking the lives of thousands of people and their belongings out to sea. Since last March, the remains of destroyed buildings, vehicles, broken furniture, fishing boats, nets and miscellaneous flotsam has been adrift in the north Pacific vastness. But how much was pulled into the ocean and where it will end up, no one can really say for sure.
Scientists and experts in Canada and the United States and, in particular, the Hawaiian islands, recognizing the potential for a fourth leg to Japan's triple disaster, are trying to forecast a possible debris path as they prepare for what could be headed their way.
One scientist closely monitoring the situation is Dr. Nikolai Maximenko, a senior researcher at the University of Hawaii's International Pacific Research Center in Honolulu. Speaking at a conference on the Hawaiian island of Kauai in December, Maximenko said that one-third to one-quarter of the total debris may have been pulled out to sea by the tsunami. But what first appeared as dense, yellow floating masses of broken lumber was quickly overshadowed by a more immediate human and environmental disaster unfolding on land.
Maximenko and other scientists in Hawaii are using diagnostic computer models in an attempt to accurately predict the likely path of debris. In June 2011, sailors traveling between Yokohama and Alaska sighted suspected tsunami-generated detritus. They described navigating two days across a field of "unusual debris," including they said looked like "file cabinets, lumber, freezer chests and large pieces of Styrofoam."
In another significant sighting last September, the Russian sailing ship STS Pallada reported passing through debris some 400 miles west of Midway atoll while on its way from Hawaii to the Vladivostok. The Russian crew spotted an unoccupied Japanese fishing boat (later confirmed to be registered in Fukushima Prefecture) as well as televisions, bottles, boots, wash basins and doors.
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