Geological Sites

Area AreaSummit CalderaSummit Caldera

The B crater sequence fissure eruption erupted a large amount of scoriae and formed pyroclastic cones, and sent down lava flows named LB1, LB2 and LB3. LB1 erupted from the B3-4 crater on the northeastern flank of Mt. Mihara and flowed northeastward for 1.7 km, following the same path as the lava flow of the 1951 eruption.

At LB1, the lava flow carried countless lumps of spray and scoria from the magma that had fallen near the crater, as if they were being transported on a conveyor belt. At the end of their journey, they were left behind in various shapes and sizes, creating an area of bizarre rock formations.

B Lava flows (LA2)

Strange rocks of all shapes and sizes

Location Information