No casualties reported yet, epicenter in Oaxaca
                                
                                
                                    (Newser) -
                                    A 6.5-magnitude quake in southern Mexico early this morning shook buildings as far away as Mexico City. The epicenter of the earthquake, which struck at 2:22 am local time, was 75 miles west-southwest of Oaxaca City. So far, no casualties, injuries or damaged buildings have been reported, but...