地質陰影図（南西→北東、35°）。山頂に右が南岳、左が北岳。手前山腹から大正溶岩が流出。左上から左手前には扇状地堆積物（淡黄色）が広がる。

Topographic relief of Sakurajima combined with geological map (tilted by 35° from the SW to the NE). Minamidake on the right and Kitadake on the left. Taisho Lava erupted from the western flank. Volcanic apron extends from the northern to the southwestern flank.