[Quote]:

When the tsunami hit the northern coast of Japan last year, the waves ripped four dock floats the size of freight train boxcars from their pilings in the fishing port of Misawa and turned them over to the whims of wind and currents.

[....]

NOAA’s tsunami marine debris coordinator Ruth Yender said if the Pacific were shrunk to the size of a football field, something like the dock would be the size of a human hair, making it very difficult to monitor, even from satellites