Neither tsunami debris nor marine debris is going away any time soon. Following an August 2012 NGO tsunami meeting and increasing reports of tsunami debris on the U.S. West Coast and Hawaii, concern and interest about tsunami debris in Japan continues to increase. Responding to this interest, the Environmental Restoration and Conservation Agency of Japan has funded a series of beach site investigations in the United States to convey the present situation of both tsunami and marine debris to Japan officials and the Japanese people. The first stop for these surveys: Hawaii.
I teamed up with members from Japan Environmental Action Network (JEAN), the Oceanic Wildlife Society and the Japan Ministry of Environment tobegin surveys on O’ahu beaches where confirmed and suspected tsunami debris has recently been found . During our first inspection at Hanauma Bay, we examined a rusted Japanese refrigerator that washed ashore on December 20th, 2012, several days before a second fridge was found on Waimanalo Beach. Cleanup volunteers commonly found refrigerator pieces on Kaua’i beaches during this past summer.
Dr. Nikolai Maximenko of the University of Hawaii International Pacific Research Center (IPRC) explained that these different ‘waves’ of alike debris (e.g., oyster buoys, refrigerators, etc.) are a result of how tsunami debris is affected by wind. Because the tsunami debris entered the ocean at the same time, similar items travel at the same speed and will appear on Hawaiian and West Coast beaches around the same time.