The epicentre of the quake was 80km off the coast of Aomori prefecture, at a depth of 50km, the agency added.
Nuclear power plants in the region were conducting safety checks, public broadcaster NHK reported.
https://www.channelnewsasia.com/east-asia/japan-earthquake-tsunami-misawa-sapporo-hokkaido-5568331
Live coverage shows tsunami waves could reach 3 meters (10 feet), threatening coastal towns
Tsunami Warning – 12/8, 11:23pm
The Tsunami Advisory has been upgraded to a Tsunami Warning. Waves of up to 3m are expected. Those near coastal areas, rivers, or lakes should evacuate to higher ground immediately. #tsunami pic.twitter.com/B7rSTqmvbB— NERV (@EN_NERV) December 8, 2025
BREAKING: Normally dont do weather stuff, but a major 7.6 earthquake has hit Aomori Japan, with a Tsunami warning now issued, wave heights of 3m or greater are expected. pic.twitter.com/sc0NyVqP5J
— StrandenOSINT (@StrandenOSINT) December 8, 2025