A 5.9 magnitude earthquake has hit the Japanese island of Honshu, according to the US Geological Service (USGS).
No tsunami warning is in place for the quake, and there are currently no reports of casualties or serious damage.
The earthquake has shaken the Fukushima nuclear power plant, where three nuclear reactors went into meltdown following a 9.0 magnitude quake in 2011.
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Tokyo Electric Power, which owns the plant, has said no irregularities have been found at the site.