Please, don’t I live about 15 miles away.
Tactical nuke - not strategic ...
The blast radius of a small tactical nuke is several city blocks ...
W70 variable yield warhead ranges between 1 and 100 kilotons of TNT.
The lowest selectable yield of a tactical B61 (Mod 3 and Mod 4) is 0.3 kilotons. http://nuclearweaponarchive.org/Usa/Weapons/B61.html
But, here - choose your weapon, pick your target location and check the effects for yourself (have a blast, LOL)
http://www.nuclearsecrecy.com/nukemap/