clutch cover

yesterday as i was riding my cat a loud noise came from the engine. when i got off to check there was a big hole i the clutch cover. this morning i removed the cover and saw both primary and secondary clutch exploded into pieces. is there any reason why something like this would happen? should...

I pulled my cover today to check the belt after only one weekend out. Belt looks great. Decided to drill some holes in the cover while it was off. I took pretty easy on the cat. I alternated between 2 and 4 wheel drive and low and high range. 6.8 hours and only 61 miles.