A magnitude 6.0 earthquake has rocked central Japan , according to the country’s Meteorological Agency.The earthquake struck off the Sea of Japan coast on Tuesday, rattling the same part of the country as the devastating New Year's Day quake. No tsunami warning has yet been issued. It comes as the country reels from the huge tremor on January 1 and its aftershocks that caused widespread destruction.The death toll from the powerful earthquake passed 200 on Tuesday, with over 100 people still unaccounted for, authorities said.