alt Hacker NewsSalt mines in particular are of the safest kind in the whole world, they are super stable. It's a self supporting rock with enough plasticity that the whole thing doesn't crumble down.
If you ever have privileged info of a huge earthquake happening, going into a salt mine is probably not the worst idea.
Plus it rehabilitates your lungs to be in a salt mine for a long time.
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Salt mines are safe as long as you are careful to keep water and salt separated. If people operating a mine (or maintaining a closed one) are negligent or incompetent or under-invest into maintenance bad thinks can happen, especially in a wet climate - water will dissolve salt and not only in/around the mine itself but in underground salt layers connected to the mine which can span tens of kilometers away from the mine.
> Plus it rehabilitates your lungs to be in a salt mine for a long time.
It what?
The only earthquake that happened in the region I am living during my lifetime was caused by a collapsing salt mine, though. (Small magnitude. I only heard about it because I was working at a particle accelerator lab at the time and the machine crew observed some beam instability caused by the ground vibrations, so they talked about it.)