Tsunami Advisory issued for the following prefectures – Southeastern Hokkaido, Aomori, Iwate and Miyagi.
Strength is 4 (Magnitude of 6.7) so avoid the sea and rivers. See higher ground if you are in doubt. Be aware that it's not just the height of tsunamis, it's the volume of water. The water just keeps coming. Even then, a "small" tsunami can still be dangerous and can wash you off your feet.
Also, beware of aftershocks and secondary waves.
by bunkakan