Jacki had an expert on recently who said that if an EMP of the right intensity were exploded over central USA, in one year 90% of the population would be dead. He explained how and why. Made perfect sense.
I am checking my preps, dusting or discarding distorted canned peas and peaches, moments ago, praying hard, this does not happen.
Lots of buckets of ‘Mountain House’ (or equiv.) brand freeze dried food and lots of water is a good start, and of course the means to protect it all.
I think, more accurately, in one month 90% of the population will be dead. No food, no water, no healthcare, no transportation, no communication. Essentially everyone will live on what they have in their house. If you live in a big city, all Hell will break loose after 3 days.