Board Thread:Questions and Answers/@comment-14611846-20130806002209/@comment-216.118.151.154-20130819011720

Not sure about the levels, but according to the config, ores have an explosive power of 2 (creepers are 3 and TNT is 4). As long as you are wearing armour, you should be fine. Also, the exploding feature can be disabled in the config (unless you're on a server).