Pyroclastic flows sometimes travel over the sea. But this particular flow remained hot in Yamaguchi Prefecture, indicating that water did not separate Mount Aso, now on the southernmost main ...

Travel through one of the largest calderas in the world at Mt. Aso in Kumamoto Pref. The caldera has fertile ground to sustain crops and livestock.

Mount Aso in Kumamoto Prefecture erupted shortly before noon on Oct. 20, sending a massive plume of dark volcanic smoke up to 3,500 meters high. The first crater of Mount Nakadake erupted ...