it set off a sense of urgency at the Japan Meteorological Agency office in Tokyo, nearly 600 kilometers north. That is because the JMA feared the phenomenon known as a “mysterious tsunami ...

Tsunami warnings were issued and ... Nearby Niigata and Toyama prefectures were also on alert. Japan's allies have sent messages of support to Tokyo in the wake of the disaster.

Japan's Meteorological Agency reported tsunami activity in the Izu Islands south of Tokyo on Monday morning. A 60 centimeter tsunami struck Hachijojima Island, and 50-centimeter tsunami waves hit ...

A powerful earthquake struck off Japan's southern coast on Thursday, triggering a tsunami advisory. Residents were urged to stay away from the coastline, but there were no immediate reports of ...