Magnitude 6.8 earthquake jolts Japan, tsunami warning retracted

A strong 6.8-magnitude earthquake rocked Japan, sparking a tsunami advisory that was later lifted with no reports Wednesday of major damage and only a handful of light injuries.

The nation's meteorological agency had warned Tuesday that a wave of one metre (three feet) could hit the coast of the Sea of Japan, north of Tokyo, but only small ripples of 10 centimetres were recorded.