If Clowns were going to BLOW UP something underground, I've heard rumors of:
Bayou Corne Sinkhole:
https:// en.wikipedia.org/wiki/Bayou_Corne_sinkhole
( at 26:53 of video: https:// www.youtube.com/watch?v=tclgtA2BABM )
As far as Pennsylvania is concerned, it's possible they're aiming for Pittsburgh b/c it's the largest city with Marcellus Shale Deposits underneath it…
These People Are Sick!
Q, do Pittsburghers need to evacuate?