Oshima 1986.11.16
Very high (~500 m) lava fountains.
Oshima 1986.11.18
Fountaining declined, but occasional intense explosions.
Oshima 1986.11.19
Lava flowed down the flank of Mihara cone and reached the caldera floor.
Oshima 1986.11.20
Lava bubbles
Oshima 1986.11.21
Shock waves
