Tsunami

Japan warned of a heightened threat of a magnitude 8.0 earthquake or stronger after a powerful offshore jolt struck the country’s north, sending authorities scrambling to issue a tsunami alert. In a statement, the Japan Meteorological Agency (JMA) said that "the likelihood of a new, huge earthquake occurring is relatively higher than during normal times". The advisory for the northern region was issued hours after a 7.7-magnitude earthquake hit the area, shaking high-rise buildings in Tokyo, hundreds of kilometres from the…

A powerful 7.5-magnitude earthquake shook northeastern Japan late Monday, prompting evacuation orders for about 90,000 residents and tsunami warnings that were later downgraded to advisories, officials said. The Japan Meteorological Agency (JMA) initially warned that waves as high as 3 meters could strike parts of the northeastern coast after the quake hit at 11:15 p.m. local time (2:15 p.m. Irish time). Observed tsunami between 20 and 70 centimeters reached several ports, including along stretches of Hokkaido, Aomori and…