The earthquake hit at 2:46pm (5:46am GMT) and measured magnitude 8.8. Pacific Tsunami Warning Center issued a tsunami warning that extended across a large part of the Pacific, including Russia, Taiwan, Indonesia and Guam. The quake was centered 10 kilometers below the Pacific Ocean off Miyagi prefecture. Buildings in the Japanese capital shook violently and items were knocked off shelves. Several fires were sparked in Tokyo and power outages were reported across a wide part of Japan.”]
Source: https://www.csoonline.com/article/2127585/major-quake-shakes-japan.html