12 miles is so far outside the blast radius, it wouldn’t have mussed your hair.
Realyy? Outside the blast radius? Of a 1MT hyrogen air blast, or a 20MT air blast?
Check your facts—we know what happened at Hiroshima and Nagasaki-hydrogen blasts were calculated to be tens of times worse then those.
12 miles is nothing as a radius.Incineration/air blast full of debris, intense radiation and fallout any one or all could do you in.
Early 60s, with a R-7/SS-6 or R-16/SS-7 with 5Mt warhead, it would, however, have caught fire (along with the reat of the town)
And with a CEP of 2NM, a "miss" on NYC in the wrong direction may have moved it close enough for the blast to have brought down buildings as well.