This news is about a nuclear power plant in Shikoku, but the possibility of a huge eruption of Mt. Aso was a decisive factor in the court’s decision:
“In the ruling, the high court concluded there was a chance the Ikata plant could be affected by a pyroclastic flow from Mount Aso if an eruption occurred similar in scale to a massive one 90,000 years ago on the southern island of Kyushu.”
– Kirk
