OK, preppers...take no offense here. Just my two cents.
With this Putain-Will-Nuke-The-World stuff going around there's been some panic amongst people I know. They want to discuss what to do IF.
First, EMP done right (three high over the US spread East/West with simultaneously detonation) puts us back into the 1850s or 60s. You're gonna need a horse. If you're on meds that are essential to keep you alive, you're gonna die. It's going to last way past a year or two, so you better be prepped for a decade or more. For me and my wife, we're past our threescore and ten, did the things we wanted to do. So we're not prepping. You can have the 1850s all to yourself. Besides, unless you live 24/7/365 at your prep fort you're probably screwed anyway. With your luck you'll be on a business trip 1000 miles from your prep fort when the balloon goes up. Even living 50 miles from a major metro area won't be enough either. The zombie hordes will find you.
Same for pole reversals, noah floods and dino slaughtering asteroids. It's 1850s at best and you can have it with my blessing. I'm too old for that crap.
Best one I heard was Hey! your microwave is a Faraday cage! It will keep your iPhone from frying! Probably true but who do you think you'll be calling? Verizon's infrastructure will be toast. Same for all your other electronics. The grid is going DOWN dudes. Electricity, Internet, Cell, etc.
Enjoy.