at 80 Trillion decibels, i think the pressure would be released into space at the weakest point of the atmosphere. instead of imploding the earth into a black hole, it would simply spew pressure into space, most likely changing the earths rotation pattern. the pressure of the 2 15's would crush every living organism into nothing before the earth hit some other mass in space, destroying both.
only thing that can combat this from happening is the chunk a single funky pup into space running on all of the suns solar energy converted into wattage. this would equalize the pressure coming from inside the earths atmosphere but destroy every other particle of matter in the expanding universe.
God im bored