On these major commemorative days, we’re often asked the big questions. “What is happening with the debris?” and “Was this what you expected?” Here’s what we know:
Debris from the tsunami is still washing ashore in the United States, but the amount is less than what we saw in previous years. Its arrival is widely scattered and unpredictable, in terms of what, when, and where, as it has been since the first piece of confirmed debris – a 170-foot squid vessel – showed up off the coast of British Columbia in March 2012.
We expect this pattern to continue, until the debris eventually blends in with the marine debris that plagues our ocean every day. The remaining tsunami debris is not in a mass, so the dispersed items could swirl around with currents for years before reaching land. Or, they could sink, as much of it has likely already done.
Over the past several years, Hawaii, California, Oregon, Washington, Alaska, and British Columbia have all seen varying amounts and types of debris gradually wash ashore. In some cases, near-identical pieces of debris washed up in different states months apart. NOAA has received nearly 2,000 debris reports to our DisasterDebris@noaa.gov email address, and as of today, we have confirmed 41 of those items to be tsunami debris, including vessels, buoys, sports balls, signs, canisters, floating piers, and a motorcycle in a shipping container. While there is likely much more tsunami debris out there, it’s very difficult to tell where debris comes from without unique identifying information. If a piece of debris is suspected to be from the tsunami, NOAA works with the Japanese government to identify these items if possible.
As to whether or not this is what we expected, it’s safe to say yes – for the most part. I wrote two years ago, when we were first faced with this unprecedented situation, that we believed highly buoyant items would be the most likely to survive a trip across the ocean. That’s what we have seen. Since we did not know exactly what those items were or where they were, we prepared for all scenarios along with our state partners.
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