Posted: 22 November, 2016
7.3 Quake Off Fukushima, Tsunami Warning
An earthquake with a preliminary magnitude of 7.3 has struck off the coast of Fukushima prefecture in Japan. A tsunami warning for waves of up to three metres has been issued.
The Japan Meteorological Agency says the quake struck around 6am local time (8am AEST) at a depth of 10 kilometres. It has warned people along the coast to move to higher ground.
The US Geological Survey measured the magnitude at 6.9. The earthquake shook buildings in Tokyo, 240 kilometres southwest of the epicentre.
Fukushima prefecture is home to the nuclear power plant that was destroyed by a huge tsunami following an offshore earthquake in 2011.
Japanese public broadcaster NHK has urged people to flee the coast immediately, reminding them of the devastating 2011 quake that killed about 18,000 people.
There were no immediate reports of damage or injury.
Tokyo Electric Power is checking its nuclear plants in Fukushima for damage, NHK said.
The company said there was no damage to its Onagawa nuclear plant.
Television footage showed ships moving out to sea from Fukushima harbours.
Earthquakes are common in Japan, one of the world's most seismically active areas. Japan accounts for about 20 per cent of the world's earthquakes of magnitude 6 or greater.
The March 11, 2011, quake was magnitude 9, the strongest quake in Japan on record. The massive tsunami it triggered caused world's worst nuclear crisis since Chernobyl a quarter of a century earlier..