Tsunami warnings have been lifted after a 7.3 magnitude quake struck 250 kilometres off the eastern coast of Japan.
Tremors were felt as far away as Tokyo, but fears for the Miyagi region, the area which was devastated by a massive magnitude 9 earthquake last year, were unfounded as a one metre wave failed to cause any major damage.
Prime Minister Yoshihiko Noda has cancelled campaigning in Tokyo ahead of a 16th December election and is on his way back to his office, but there was no immediate plan to hold a special cabinet meeting, according to Reuters.
A tsunami warning has been issued for the Miyagi Prefecture, marked in red on the map above.
The same area was hit by a devastating earthquake and tsunami in March 2011.
That quake triggered fuel-rod meltdowns at the Fukushima nuclear plant, causing radiation leakage, contamination of food and water and mass evacuations in the world's worst nuclear crisis since Chernobyl in 1986.