On Thursday there was a magnitude 6.1 earthquake 141.1 km east-northeast of Hachinohe, Japan.
The earthquake happened at 9:46 am local time at a depth of 17 km.
No tsunami warning was issued.
There have been no reports so far of major damage or injuries as a result of the offshore quake.
There have been no reports of any abnormalities at any nuclear power stations in the affected regions.