Japanese officials directed tsunami warnings for Hokkaido, Aomori, and Iwate coastal regions after the powerful quake hit around 11:15 p.m. local time.

A powerful 7. 6-magnitude earthquake struck late Monday off northern Japan, triggering a tsunami of up to 50 centimeters (20 inches) in Pacific coast communities and warnings of potentially higher sur...

There was no tsunami warning, and there were no immediate reports of damage.