An interactive map -- here -- shows the trajectory from Sendai to San Diego ... via the Aleutians. No danger, just creepy.
... Health and nuclear experts emphasize that radiation in the plume will be diluted as it travels and, at worst, would have extremely minor health consequences in the United States, even if hints of it are ultimately detectable. In a similar way, radiation from the Chernobyl disaster in 1986 spread around the globe and reached the West Coast of the United States in 10 days, its levels measurable but minuscule. ...NYT
