Taphophobia (or Taphephobia) is the irrational fear of being buried alive. Let's be real for a moment, being underground in any capacity is uncomfortable. Personally, unless it's a basement I am perfectly happy keeping myself above ground.
That's why when I hear about people who go "caving", or exploring caves for fun, I wonder if they are "all there" upstairs.
That nightmare scenario of being trapped underground became a reality for one member of the Indiana University Caving Club.