The Japan Meteorological Agency issued a tsunami warning and tsunami advisory after a strong earthquake occurred in the middle of the night off the eastern coast of Honshu in Japan on December 8. The tsunami situation that has been observed so far. As of 1:09 a.m. local time, the high tide was 70 cm high in Kuji Port in Iwate Prefecture, 50 cm in Urakawa in Hokkaido, 40 cm in Mutsu Ogawara Port in Aomori Prefecture, and 30 cm in Hachinohe Port in Aomori Prefecture and the high tide in Erimo Town in Hokkaido.

The Japan Meteorological Agency issued a tsunami warning and tsunami advisory after a strong earthquake occurred in the middle of the night off the eastern coast of Honshu in Japan on December 8. The tsunami situation that has been observed so far. As of 1:09 a.m. local time, the high tide was 70 cm high in Kuji Port in Iwate Prefecture, 50 cm in Urakawa in Hokkaido, 40 cm in Mutsu Ogawara Port in Aomori Prefecture, and 30 cm in Hachinohe Port in Aomori Prefecture and the high tide in Erimo Town in Hokkaido.