IZU VOLCANIC ISLANDS


OSHIMA


Left Photo: Oshima viewed from west.
Right Photo: Mihara-yama. The active cinder cone in the caldera. Mihara-yama was formed by the 1777-1778 eruption of Oshima. The black solidifed lava on the slope is the 1986 lava flow.


Both photos: The 1986 lava and thick scoria from the fissure in the caldera, northeastern part of the caldera floor.
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