“1km or 1120km radius? Please clarify.”
The latter, in the case of a detonation 100km from the surface. It’s simply a function of line of sight to the ground.
Now, what the effects in that area is the question, and both Hawaii and Kakhakstan were in the range of the 1960s tests and there were no severe power station failures there.
“1km or 1120km radius? Please clarify.”
The latter, in the case of a detonation 100km from the surface. It’s simply a function of line of sight to the ground.
Now, what the effects in that area is the question, and both Hawaii and Kakhakstan were in the range of the 1960s tests and there were no severe power station failures there.
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Does this consider the inverse square law of EM radiation?
You mention transformers as a major economic/civilization failure point, and I agree with you, however they are massively hardened against lightning strikes, overload and other transients. Electronics and data nodes will be hit hard.