Not happening. Or rather, irrelevant if it does happen. You work out the mass loss via Hawking radiation, it's high enough at those mass levels that they'd jus

Not happening. Or rather, irrelevant if it does happen. You work out the mass loss via Hawking radiation, it's high enough at those mass levels that they'd just go "poof". The Earth isn't dense enough to sustain such a black hole. Not to mention that if the LHC produced said micro black holes, they'd be produced by cosmic rays anyways.