CNN’s Ivan Watson reports on a tsunami threat in Japan after a 7.4 magnitude earthquake off the island’s northeastern coast

At least six people were reported injured, a day after a powerful quake rattled the northern region, but there appeared to be no major damage from the tremor that also triggered tsunami waves up to 80...

A Cabinet Office official told a separate televised briefing that “while it is uncertain whether (another) major earthquake will actually occur, we ask that you take disaster preparedness measures bas...