As soon as the Muslims feel good about themselves, we could rebuild the space program and institute the Rods from God. Which should have been done decades ago.
There is your anti-nuke solution. LET THEM bury it as deep as they can. RFG would bury it deeper still.
Something that big, even if it did not penetrate all the way would create such a huge mass of debris that it would be almost impossible to dig out, given that we could use smaller bombs to destroy the repair crews and equipment.