re: #437 Dark_Falcon
The depths would prevent large amounts of fall-out. It wouldn’t even be a big nuke.
Specifically, the depth at which the small nuke would be detonated would be deep into the rock below the ocean floor. This would contain the radiation. But if such an attempt failed, it would no longer be possible to do any sort of Top Kill on the well.
What if it fractured the well at depth and removed the relief well option? Then the leak wouldn’t end until the reservoir was depressurised. (I am just guessing here that this is a possibility.)