Tests carried out in the US displayed devastating results if a nuclear device was to be exploded over any continent starting from 30-kms and above. That is for attacking an entire continent. However EMP is generated in EVERY nuclear blast, but its affects on the ground get reduced. I was having an argument with Rampage about Tactical EMP which can be created through a nuclear blast on lower altitude and other technologies being researched like a non nuclear tactical EMP device can be carried in a cruise missile, the missile will loiter over the target area surgically delivering EMP voltage to pin point targets. That technology is yet not operational however.
@
Agnostic_Indian Pakistan does possess strategic EMP capability, all nuclear states do. However tactical EMP device doesn't exist yet.
No one will die as a result of an EMP attack, the target country or continent will just go back to the stone age without any physical destruction,especially industrialised countries where people are detached from life skills for survival and cannot live without electronic devices dictating their lives.