Report on Kuchinoerabujima (Japan) — 12 December-18 December 2018
Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 12 December-18 December 2018
Managing Editor: Sally Sennert.
Please cite this report as:
Global Volcanism Program, 2018. Report on Kuchinoerabujima (Japan) (Sennert, S, ed.). Weekly Volcanic Activity Report, 12 December-18 December 2018. Smithsonian Institution and US Geological Survey.
30.443°N, 130.217°E; summit elev. 657 m
All times are local (unless otherwise noted)
JMA reported that at 1637 on 18 December an eruption at Kuchinoerabujima’s Shindake Crater produced an ash plume that rose 2 km and then disappeared into a weather cloud. The event ejected material that fell in the crater area, and generated a pyroclastic flow that traveled 1 km W. The Alert Level remained at 3 (on a scale of 1-5).
Geological Summary. 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. 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.