Geological Sites

Area AreaSummit CalderaSummit Caldera

In the 1950-51 eruption, for the first time since the Great An'ei Eruption of 1777-1792, lava flows flowed down to the caldera floor over Mt Mihara.

The lava flow that spread across the caldera floor reached close to the western caldera rim and "Omote-Sabaku Desert" in the north-western part of the caldera.

This lava flow is one of the typical forms of basalt lava, known as "A'a lava", which is covered with a rugged black mass (clinker).

Ashtray made of lava

The lava field spreads out in front of us.

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