Mt ASO Volcano on Kyushu Island, Japan, is one of the world's most active volcanoes & has one of the longest recorded lists w/about 160 historic eruptions since 553 AD. Fatalities occurred due to bomb impacts & volcanic gasses in 1979 & 1997
Mount Aso, is the largest active volcano in Japan, and is among the largest in the world. Aso has one of the largest calderas in the world (15.5 mi north-south, and 11 mi east-west). The caldera has a circumference of around 75 mi.