A magnitude 6.5 earthquake hit northern Japan on Monday, the U.S. Geological Survey (USGS) reported. Japan’s national broadcaster NHK said Japanese authorities issued a 50-cm tsunami warning. Later the warning was canceled. The USGS said the quake occurred at 22:23 GMT Sunday and was 5.9 km (3.7 mile) deep. Aftershocks continue to rock Japan after […]