China has a four-tier, color-coded warning system for tsunami, with red representing the most severe warning, followed by orange, yellow and blue. Enditem ...

TOKYO, July 30 (Xinhua) -- Japan's Meteorological Agency issued a tsunami warning for wide areas along the Pacific coast on Wednesday morning following a powerful earthquake off the eastern coast ...

星期三 (7月30日)早些时候俄罗斯堪察加半岛东部地区发生有史以来最强地震之一后，海啸袭击了夏威夷和美国西海岸各州。