Radiation levels up to several hundred times normal have been detected
on the Pacific seabed in a 300-kilometer-long area off the crippled
Fukushima Daiichi nuclear power plant, the science ministry said Friday.
The ministry said high-level radioactive materials were detected on the
seabed in a north-south stretch ranging from Kesennuma, Miyagi
Prefecture, to Choshi, Chiba Prefecture, and warned the contamination
could affect the safety of seafood. The science ministry said it
detected iodine and cesium on the seabed at 12 spots 15- to 50-km from
the coastline between May 9 and 14.
http://www.youtube.com/watch?v=P7xfmo5w7r4&feature=player_embedded