re: B61-11
The B61-11 has been around for almost a decade....
A nuclear EPW such as the B61-11 can only penetrate 2-3m but even a shallow underground nuclear explosion produces an intense and damaging seismic shock.
Depending on the rock type, this could potentially crush a bunker at about 70 metres depth.
But the missiles cannot penetrate deeply enough for the radioactive fallout to be contained.
Source
Source2
Regards, Vince
