I don’t know how much reporting there has been on television about this, but a lot of what nature took from Japan’s east coast in the Great East Japan Earthquake and tsunami is not buried underneath the Pacific Ocean. In fact, it is on the ocean.
The International Pacific Research Center says that in a couple of years, many items that were washed out to sea on March 11 will appear on the West Coast of America. Some people say that boats and whole houses may be among the things.
Here is a gif file animating the path of the wreckage.