Bomb Blast Mapper and Radiation Mapper
A small 1 megaton nuke would kill over 1 million people if detonated in down town Portland ..... and the radiation would wipe out all life for about 200 miles traveling East.
Just illustrating what is possible with even a small hydrogen bomb going off (E.g. A 1 megaton bomb = 8 x the power the 1945 Hiroshima atomic bomb). Those small, portable 'suitcase nukes' everybody is talking about might have about 30% of the power of the atomic bomb dropped on Hiroshima.