The Japan Meteorological Agency warned that a tsunami of up to 3 meters high could hit parts of Hokkaido, Aomori and Iwate prefectures after a 7.5-magnitude earthquake struck in the Pacific Ocean.
Accordingly, the first tsunami waves have begun to reach Iwate Prefecture, with waves of up to 40 centimeters reported in Miyako Harbor. A tsunami has been detected about 50 kilometers off the coast of Aomori on the main island of northern Japan, NHK media reported.