The Tokyo High Court on Thursday ordered the operator of the crippled Fukushima No. 1 nuclear power plant to pay damages to evacuated residents, but it overturned an earlier ruling by Maebashi District Court that had also acknowledged the central government's responsibility over the 2011 nuclear crisis.
Among around 30 such lawsuits across the country, the decision of the Tokyo High Court was the first high court ruling absolving the state of responsibility, contradicting an earlier decision of the Sendai High Court in September that ordered both the state and Tokyo Electric Power Company Holdings Inc. to pay damages.
The government's failure to instruct Tepco to take measures against tsunamis "is not found to be significantly unreasonable," Presiding Judge Akira Adachi said in handing down the ruling.
The lawsuit focused on the reliability of an official long-term quake assessment made in 2002, which has been used in previous rulings to determine the liability of the state and Tepco for their failure to prevent the nuclear disaster.
Adachi noted the assessment had caused a debate since its release, and that the government was unable to predict a huge tsunami.
Implementing measures such as constructing seawalls would not have prevented the tide from entering the nuclear plant, he added.
Thursday's ruling instead ordered Tepco to pay a total ¥119.72 million to 90 plaintiffs, more than triple the amount awarded in the lower court ruling.
In March 2017, the Maebashi District Court awarded a total of ¥38.55 million to 62 plaintiffs who evacuated from Fukushima Prefecture, including those who voluntarily left, acknowledging the government and the utility were negligent in preparing for a tsunami like the one that struck the facility.
The district court said the disaster was caused by a failure to cool nuclear fuel as water entered turbine buildings through air supply openings in the wake of the tsunami triggered by a massive earthquake, crippling emergency switchboards.
The lawsuit was filed by a total of 137 plaintiffs relocated to Gunma Prefecture and elsewhere. They sought a combined ¥1.5 billion — ¥11 million each — in damages for emotional distress.
They were forced to leave their hometowns as three reactors suffered meltdowns at the plant after the magnitude 9.0 earthquake and ensuing tsunami hit northeastern Japan on March 11, 2011.
The plaintiffs said they had lost their livelihoods and faced inconvenience for an extensive period, and the amount they received under the current state compensation guidelines was not enough.
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