Lucky for us, the active Mt. Asama is in Gunma. It's one of the most active volcanoes in Japan and just erupted in February! It was a big enough eruption that the entire mountain and several km surrounding area was closed off. The first eruption though was on May 9, 1783. It was a huge eruption and lava and volcanic ashes sprayed everywhere. The result was like an avalanche and the debris gathered surface water and transformed into a hot mud flow. The lava that cooled down formed Onioshidashi, the park that we went to check out.
"Oni" means devil. Awww, Kristin, you 'lil devil, you!
Ring my belllll, lllllllllll, lllllllllll, ring my bell!