Magnetic poleshift maybe....

actual poleshift...would take a gravitational body passing near to the earth and the rest of the planets....to pull them over...

and or the sun nails us with a nova....and overwhelms our magnetosphere and the earth dumps it over onto its side....

Op is hooked on one channel on youtube run by not so much scientists watching other not so much scientists watching other not so much scientists videos to formulate their maybe this and that shit will happen...

And OP...Your bug out kit is wholly uncapable of supporting any life for more than 3 days buddy...your dead first and anybody that listens to you....

Good luck..you will need it the most I am afraid....but good luck to you anyways....