>>514
https://www.globalsecurity.org/military/systems/munitions/blu-118.htm
The BLU-118/B is a penetrating warhead filled with an advanced thermobaric explosive that, when detonated, generates higher sustained blast pressures in confined spaces such as tunnels and underground facilities.

BLU-118はレーダー誘導で貫通爆弾として地中のトンネルや洞窟内に突入して起爆する爆弾なので「有効殺傷半径」ではその威力は測れない