Mariners transiting North Pacific Ocean should be aware of the debris
The Maritime Administration (MARAD) issued an advisory reminding mariners transiting the North Pacific Ocean between Japan and the US West Coast of the debris field resulting from the tsunami on Honshu, Japan in 11 March 2011.
Some possible marine debris types include derelict vessels, fishing nets and floats, lumber, cargo containers, and household goods. Because different debris types move with currents and winds differently, the debris may be dispersed over a very broad area.
Source: MARAD