Obviously it's crap. What kind of loving god would make a place like hell? A benevolent god running a torture camp in the center of the Earth where people are put into excruciating pain for all eternity as punishment for a finite number of immoral acts during their lifetimes, with no chance of forgiveness ever? The idea is absurd.

Besides, if hell is a real physical place we can get to by drilling into the Earth, then where is heaven? Outer space?