Report on Kuchinoerabujima (Japan) — July 1996

Bulletin of the Global Volcanism Network, vol. 21, no. 7 (July 1996)
Managing Editor: Richard Wunderman

Kuchinoerabujima (Japan) Seismic activity increasing since January 1996

Please cite this report as:

Global Volcanism Program, 1996. Report on Kuchinoerabujima (Japan). In: Wunderman, R (ed.), Bulletin of the Global Volcanism Network, 21:7. Smithsonian Institution. http://dx.doi.org/10.5479/si.GVP.BGVN199607-282050.

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Kuchinoerabujima

Japan

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

All times are local (unless otherwise noted)


Seismicity has been increasing since January 1996. According to the Sakura-jima Volcanological Observatory, Kyoto University, 75 and 25 earthquakes were detected around Shin-dake cone in June and July, respectively.

Geologic Background. A group of young stratovolcanoes forms the eastern end of the irregularly shaped island of Kuchinoerabujima in the northern Ryukyus, 15 km west of Yakushima. Furutake, Shintake, and Noike were erupted from south to north, respectively, to form a composite cone that is parallel to the trend of the Ryukyu Islands. The highest peak, Furutake, reaches only 657 m above sea level. The youngest cone, 640-m-high Shintake, was formed after the NW side of Furutake was breached by an explosion. All historical eruptions have occurred from Shintake, although a lava flow from the S flank of Furutake that reached the coast has a very fresh morphology. Frequent explosive eruptions have taken place from Shintake 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: Volcanological Division, Japan Meteorological Agency, 1-3-4 Ote-machi, Chiyoda-ku, Tokyo 100, Japan