Here's a live feed of a Geiger counter in Tokyo. Tokyo is 142 miles from the Fukushima power plant.
Compare that to the National Radiation Map. Currently, there is nearly twice as much radioactivity (57 CPM vs 28 CPM) being registered in Denver than there is in Tokyo.
Per the latter web site, 130 CPM is an unusually high count.
Kind of puts things in perspective.