A 6.9 greatness tremor off eastern Japan close Fukushima prefecture has provoked a torrent cautioning of conceivable 3m (10ft) waves.
The tremor struck on Tuesday morning at around 06:00 nearby time (21:00 GMT, Monday), the Japan Meteorological Agency said.
The profundity of the tremor was evaluated to be around 11km (7 miles).
In 2011, a huge torrent brought about by a shake decimated the Fukushima atomic power plant.
Telecaster NHK said Tokyo Electric Power was checking the plant for harm.
There were no prompt reports of harm or losses however tremors were felt in Tokyo and occupants were encouraged to clear some beach front territories.
Boats could be seen moving far from the bank of Fukushima prefecture.
In this way, an influx of 60cm (2ft) has touched base in Onahama Port in Fukushima, NHK reported, however the notice of conceivable bigger waves stays in drive.
The US Geological Survey at first put the extent at 7.3 yet later minimized this to 6.9.
Japan lies in an especially seismically dynamic area and records for around 20% of shakes worldwide of extent at least 6.0
No less than 50 individuals kicked the bucket in two shakes in the southern Kumamoto prefecture in April.
More than 18,000 were murdered or reported missing after the 2011 Fukushima catastrophe.