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Aoga-shima Volcano | John Seach
Izu Islands, Japan
32.45 N, 139.77 E
summit elevation 423 m
stratovolcano
Aoga-shima Volcano is located in Izu Islands, Japan. The island is 2.5 x 3.5 km in size. Aoga-shima has a caldera (Ikenosawa Crater) on center of the island with a diameter of 1.7 x 1.5 km.
Pyroclastic flows covered the whole island about 3000 years ago.
1790-85 Eruptions
On 4th May 1781 a small eruption produced ashfall. On 10th and 11th April 1783 Strombolian eruptions produced a scoria cone, 61 houses were burned, and 7 fatalities. On 18th April 1785 Strombolian eruptions occurred, producing a scoria cone, and causing 130-140 fatalities. Residents vacuated to Hachijo-jima. Lava flow recorded.
Further Reading
Klaus, A., Taylor, B., Moore, G.F., Murakami, F. and Okamura, Y., 1992. Back-arc rifting in the Izu-Bonin Island Arc: Structural evolution of Hachijo and Aoga Shima Rifts. Island Arc, 1(1), pp.16-31.
Aoga-shima Volcano Eruptions
1780-85, 1670-80, 1652.