Report on Kuchinoerabujima (Japan) — April 1996
Bulletin of the Global Volcanism Network, vol. 21, no. 4 (April 1996)
Managing Editor: Richard Wunderman.
Kuchinoerabujima (Japan) Number of volcanic earthquakes continues to increase
Please cite this report as:
Global Volcanism Program, 1996. Report on Kuchinoerabujima (Japan). In: Wunderman, R. (ed.), Bulletin of the Global Volcanism Network, 21:4. Smithsonian Institution. https://doi.org/10.5479/si.GVP.BGVN199604-282050.
30.443°N, 130.217°E; summit elev. 657 m
All times are local (unless otherwise noted)
According to reports from Sakura-jima Volcanological Observatory, Kyoto University, 91 earthquakes occurred around Shin-dake in April. Earthquakes have progressively increased here since January 1996. Specifically, there were 32 earthquakes in January, 40 in February, and 77 in March.
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: Japan Meteorological Agency (JMA), Volcanological Division, Seismological and Volcanological Department, 1-3-4 Ote-machi, Chiyoda-ku, Tokyo 100, Japan.