"Natural Disasters" in your world.

I don't mean things like "a great dragon that can swallow countries" or existential threats. What I mean is the disasters that can occur randomly because of how things work in your world. Things like earthquakes, volcano erupts, floods, wild fires etc. Things you can't escape if you live there, only can be prepared for.

In my world, where is a post apocalypse, things like factories can randomly collapse due to wear and tear, release toxic matters to the surroundings. People can be prepared for, even they can try to prevent it by fixing them, but their numbers are huge and the resources to fix them is rare so the only biggest factions can do these. They can only be prepared for them like carrying gas masks in their homes etc.

For me, it was a thought provoking prompt, as anniversary of one of the biggest disasters my country ever faced is approaching. For you?