How far does radiation travel?
It depends on the energy of the radiation and the size (or activity) of the source. Distance is a prime concern when dealing with gamma rays, because they can travel at the speed of light. Alpha particles can only travel a few inches and beta particles around 10 feet.
How long after a nuclear blast is it safe?
three to five weeks
How fast does fallout travel?
Nuclear fallouts travel faster in stronger winds, and it also descends with the same time. Nukes can travel at the speed of 13,000 miles per hour and a distance of more or less 67,000 yards away. Once it explodes, the nuclear fallout can travel as fast as 1,000 radii.
What US cities are most likely to be nuked?
The cities that would most likely be attacked are Washington, New York City and Los Angeles. Using a van or SUV, the device could easily be delivered to the heart of a city and detonated. The effects and response planning from a nuclear blast are determined using statics from Washington, the most likely target.