On 14 September 2015, the Japan Meteorological Agency (JMA) raised the volcano alert for Aso-san to level 3 following an eruption, prohibiting access to the mountain. Check the JMA (www.jma.go.jp/en/volcano) for the latest updates.
Welcome to Aso-san Area
Halfway between Kumamoto and Beppu lies the Aso-san volcanic caldera. It's among the world's largest (128km in circumference), so big that it's hard at first to understand its scale, and strikingly beautiful. Formed through a series of eruptions over the past 300,000 years, the current outer crater is about 90,000 years old and now accommodates towns, villages and train lines...