Not saying you were suggesting it but to be clear a nuclear power plant cannot blow up like a nuclear bomb.
That is not to say they can’t cause a mess but the big boom is not in the cards for them. The physics are all wrong. Couldn’t make it do that if you tried.
There was one case where the rocket a nuclear warhead was on exploded, propelling the warhead half a mile away where it crashed to the ground. No detonation.
A good nuclear explosion needs a bunch of things to go exactly right. And by exactly I mean insanely exactly.
Any part of that insanely exactly process messes up and you either get a fizzle (low yield nuke) or nothing at all. (Depends how it fucks up and it is not hard for it to fuck up…these things have serious precision to work.)