Global Volcanism Program | Image GVP-02227
Shikotsu caldera is a 13 x 15 km caldera filled by Lake Shikotsu, seen here from the SE with Yotei on the center horizon. Following formation of the caldera more than 30,000 years ago, three small cones were constructed along a NW-trending line cutting across the caldera. Snow-capped Tarumai (left-center) grew near the SE rim of the caldera, along with Fuppushi to its right. A third volcano, Eniwa, was constructed on the NW caldera rim, at the far side of the lake.
Photo by Ichio Moriya (Kanazawa University).