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Report on Kuchinoerabujima (Japan) — April 1976

Natural Science Event Bulletin, vol. 1, no. 7 (April 1976)
Managing Editor: David Squires.

Kuchinoerabujima (Japan) Explosion sends column 3 km high

Please cite this report as:

Global Volcanism Program, 1976. Report on Kuchinoerabujima (Japan). In: Squires, D. (ed.), Natural Science Event Bulletin, 1:7. Smithsonian Institution. https://doi.org/10.5479/si.GVP.NSEB197604-282050.

Volcano Profile |  Complete Bulletin


Kuchinoerabujima

Japan

30.443°N, 130.217°E; summit elev. 657 m

All times are local (unless otherwise noted)


An explosion at Shin-dake cone yielded columns of smoke 3,000 m high at about [1540] on 2 April. After 30 minutes the height of the smoke column decreased to about 200 m (twice that of usual emissions). Egg-sized volcanic ejecta fell, and ash 2 cm deep was measured in a village 3 km from the crater. The last explosion took place on 3 June 1974. [JMA reported that there was no damage.]

Geologic Background. A group of young stratovolcanoes forms the eastern end of the irregularly shaped island of Kuchinoerabujima in the northern Ryukyu Islands, 15 km W of Yakushima. The Furudake, Shindake, and Noikeyama cones were erupted from south to north, respectively, forming a composite cone with multiple craters. The youngest cone, centrally-located Shindake, formed after the NW side of Furudake was breached by an explosion. All historical eruptions have occurred from Shindake, although a lava flow from the S flank of Furudake that reached the coast has a very fresh morphology. Frequent explosive eruptions have taken place from Shindake since 1840; the largest of these was in December 1933. Several villages on the 4 x 12 km island are located within a few kilometers of the active crater and have suffered damage from eruptions.

Information Contacts: T. Tiba, National Science Museum, Tokyo.