Is it normal that i thunderously flatulate?

Alright last night I had quite a large dinner, I made tacos and had some other mexican food along with spanish rice.

Now later on as I was watching TV I let loose a thunderous fusillade of flatulence. I was wearing a fairly new pair of underpants and later on when I examined them there was a large hole in them that wasnt there yesterday morning when I first put them on. There were no stains, just a large, silver dollar shaped hole.

Is it normal to think that I actually blew a hole in them?