A strong earthquake has struck northeastern Japan, but authorities say there is no danger of a tsunami, and there were no immediate reports of casualties. The Japan Meteorological Agency says Sunday's quake had a preliminary magnitude of 6.2. The epicentre was off the northeastern coast of Japan, about 50 kilometres (31 miles) below the seabed.
In 2011, Fukushima was hit by a powerful quake, tsunami and nuclear meltdown, the worst nuclear disaster since Chernobyl.
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