About 230 local residents filed their lawsuit in 2011, questioning the reliability of safety measures at the power plant in case of an earthquake.
The lawsuit was filed a few months after an earthquake triggered a tsunami which, in turn, led to meltdowns at the Fukushima I Nuclear Power Plant and radioactive contamination of nearby territories.
After the Fukushima disaster, all of Japan's NPPs were either closed or had their operations suspended. However, the country has been restoring NPP usage after certain safety inspections have been completed.
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