The tsunami on Oct. 9 was observed over a wide area of Japan along the Pacific, including the main islands of Honshu ... in Kagoshima Prefecture. In a sea area about 100 kilometers southwest ...

Japan's East Coast of Honshu was struck by an earthquake of ... The earthquake's impact was not confined to Taiwan alone, as it triggered a tsunami alert in Japan's Yonaguni Island.

The warning was downgraded to a regular tsunami several hours later, meaning the sea could still generate waves of up to 3 meters (10 feet). Aftershocks could also slam the same area over the next ...