Volcano eruption guide “Eruption prediction not assumed” stated Nuclear Regulation Authority Oct. 16 20:35
In the review of the nuclear power plant, the Nuclear Regulatory Commission will clearly state that the guide used to evaluate volcanic eruptions does not assume that eruptions can be accurately predicted.
It is based on the fact that experts have pointed out that it is difficult to grasp the huge eruption in advance.
The Nuclear Regulatory Commission uses the Volcano Guide, which summarizes risk assessment methods for eruptions, to review nuclear power plants, but it is difficult to know the huge eruption from volcanic experts in advance. It was pointed out that the description was misleading so that it could be predicted.
Also, in a trial seeking the suspension of the nuclear power plant, the Hiroshima High Court and others pointed out that the guide was “irrational” on the assumption that the eruption could be predicted.
For this reason, the Regulatory Committee has compiled a revised draft on the 16th and has clearly stated that it does not assume that the timing and scale of an eruption can be accurately predicted.
The “Volcano Guide” was created six years ago and is used to evaluate whether the risk of a pyroclastic flow, etc. is sufficiently small when a volcano near the nuclear power plant erupts.
“The guide has never had the intention of predicting a large-scale eruption, but I would like to make it more accurate. It will not affect previous judgments or future reviews.” " The Regulatory Committee will formally revise it within the year after soliciting opinions from the public for 30 days from the 17th.