Sometimes one comes across huge granite boulders in Kumamoto City. They were not produced on-site and are too large to have been carried by water, so one must assume they are ejecta from Aso. The energy required to shoot these massive objects over tens of kilometers is awesome to consider - they must have landed with quite a thud. I likely share our readership in the hope that we’ll never have an opportunity to witness such an event.
Ehime Prefecture, which occupies the western side of Shikoku, hosts one of the few remaining nuclear power plants in Japan, something some locals don’t like, so they filed a lawsuit to close the plant which was rejected yesterday. One reason plaintiffs cited was potential of an eruption at Aso - 130 kilometers away. Many have various views of nuclear power, but an Aso eruption of magnitude sufficient to effect Ehime (not inconceivable across millennia timeframe) would leave a nuclear meltdown as the least of our concerns. From Japan Today: https://japantoday.com/category/national/court-rejects-call-to-halt-nuclear-reactor-in-western-japan and ejecta example（kinda looks like a frog). - William