A single nuclear weapon detonated high above the country wouldn't level a city — it would blanket the ground beneath it in an electromagnetic pulse, frying unshielded electronics and the power grid line-of-sight to the horizon. This maps the peak field strength (like the U.S. Army's classic chart), scaled by yield and altitude — and shows what a "super-EMP" device changes.
Faraday protection for critical electronics is one of the cheapest high-impact preps there is.
One high-altitude warhead, and a continent goes dark.
A single nuclear weapon detonated high above the country wouldn’t level a city — it would blanket the ground beneath it with an electromagnetic pulse.
This maps the fast E1 pulse field strength in the style of military planning references. Real damage depends on what’s connected to long wires and how hardened it is — the map shows exposure, not a guaranteed outcome. Faraday protection for critical electronics is the cheap, high-impact prep.
