There are bunker busting bombs, Armour piercing shells and more. An earthquake is a different action from a direct hit from one of those things.

You are comparing apples with oranges here. You are also not accounting for old soviet infrastructure, no upgrades or subpar upgrades on the older reactors and more. An earthquake is far different from a bomb falling through on a reactor.

There are bunker busting bombs, Armour piercing shells and more. An earthquake is a different action from a direct hit from one of those things.

You are comparing apples with oranges here. You are also not accounting for old soviet infrastructure, no upgrades or fw to the older reactors and more. An earthquake is far different from a bomb falling through on a reactor.