Creepers Blow up 5+ blocks away from you.

I know they added Creepers having a bigger explosion.. But they should only explode being within 2 blocks from you. Now they blow up 5 or more blocks away from you. And when I was in a fence the creeper on the other side blew up all my animals I wasnt near the creeper. Should be 2 blocks away for the creeper to explode. Thanks, MinerGirl98