Every year you have solar flares that could hit the grid, you have asteroids that just miss the planet, you have huge quakes and large hurricanes and all the big events that are well pretty common. Tsunamis happen, quakes happen, hurricanes and typhoons happen, solar flares happen and one may hit earth and take out lots of electrical grids in some areas, probably not the whole planet though since one side is always away from the sun, so the side facing sun gets hit.

Now a large asteroid, that's a potential ELE, extinction level event.

That's the only thing people need to be aware of and right now there's a program tracking most objects in our solar system that could do major damage, then all man has to worry about is an asteroid on a weird course that isn't usually in our system for long.

Stuff happens, you can go out your front door and get run over.

You can slip on water in your bathroom and crack your head and die.

You are born, you have some fun, you die.

Don't sweat it.