Check the adapter ( the thing with the thread ) that the oil filter spins on to...that could be loose....

There is a pressure relief valve that is supposed to stop such things from happening but if it were to build enough pressure to do that, then you could say goodbye to alot of your gaskets and seals...

Are you overfilling the oil? That could cause an increase in pressure...

Oh yea...STOP USING FRAM FILTERS....