The epicentre of the quake was off the ‌coast of Iwate prefecture, at ‌the ⁠depth of about 50 ⁠km, and no damage from tsunami is feared except for slight sea level ​changes The epicentre of the quake was off the ‌coast of Iwate prefecture, at ‌the ⁠depth of about 50 ⁠km, and no damage from tsunami is feared except for slight sea level ​changes