I have seen claims elsewhere that the quake was not 7.0, but 6.something, but that some reporting services were rounding log-scale numbers to whole numbers to make reporting on them easier, which is a horrifically bad idea.
How should you round log scale numbers though? Does a 6.77 get rounded to 6.8? If yes what’s wrong with rounding to 7?
You should probably round down unless you’re very close to the next higher number – there’s some math I could do to find out how close you should be before rounding up becomes more accurate, but I’m not gonna.
(NB: you should probably round down unless you’re a journalist, in which case, higher numbers -> higher interest)