it does so much damage that some people kill them selves and do crack and heroin
ALOT! And i do mean alot.If one erupted it could do more damage then 100Nukes.
It's too broad of a question to answer. Damage from bullets can range from creating small holes to creating large gaping holes, and/or damaging tissue. It depends on several factors, such as, bullet...
It obviously depends on the severity and location but they can be devastating
it can do beyound our imagination.