Another offshore megaquake could cause a 98-foot tsunami, kill 199,000 people, and destroy 220,000 buildings.
Japan issued a megaquake advisory Tuesday after a magnitude 7.5 earthquake struck off the eastern coast of Aomori, the northernmost prefecture of Japan’s main island of Honshu, and just south of the northern island of Hokkaido. Damage from this quake... [4971 chars]