Along with a good chunk of the continent they're standing on, since he's using his hand when a fingertip is enough. Then again, this is Vegeta we're talking about, overkill is the norm when he's involved.
Yeah, but unlike yukkuris DBZ Earth has an outstanding self regenerative capacity (Unlike Yu's who need orange juice for their "miraclous" come backs), since it's like those craters and shit fill themselves up months later, I think the only thing it can't do, regeneration wise, is rebuilt itself after blowing up, but you have the dragon balls for that.