Surviving the initial blast takes distance and if you can't get that then you need an underground bunker with a good 3-5 feet of concrete all around you and or 20-60 feet of dirt. A nearby cave would be good for the initial blast.
It's after that blast that there becomes an issue.
Heat wave of very hot and fast moving air will scorch anything on the surface for miles around.
Then you have to contend with the radioactive ash and particles in the air. Your underground bunker may have an air vent and that fresh air vent can also bring in radioactive material.
The cave you duck into may fill with radioactive material or maybe the air in there will provide a buffer zone. Hard to say.
Wild game in the surrounding 30 mile radius will not be able to be eaten. Same thing goes for any outdoor fruits or veggies.
Good luck
It's after that blast that there becomes an issue.
Heat wave of very hot and fast moving air will scorch anything on the surface for miles around.
Then you have to contend with the radioactive ash and particles in the air. Your underground bunker may have an air vent and that fresh air vent can also bring in radioactive material.
The cave you duck into may fill with radioactive material or maybe the air in there will provide a buffer zone. Hard to say.
Wild game in the surrounding 30 mile radius will not be able to be eaten. Same thing goes for any outdoor fruits or veggies.
Good luck
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