Report on Ebeko (Russia) — 10 August-16 August 2005
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
10 August-16 August 2005
Managing Editor: Gari Mayberry
Please cite this report as:
Global Volcanism Program, 2005. Report on Ebeko (Russia). In: Mayberry, G (ed.), Weekly Volcanic Activity Report, 10 August-16 August 2005. Smithsonian Institution and US Geological Survey.
50.686°N, 156.014°E; summit elev. 1103 m
All times are local (unless otherwise noted)
KVERT reduced the Concern Color Code at Ebeko from Yellow to Green (the lowest level) during 5-12 August. Weak fumarolic activity was observed, and no volcanic activity was visible on satellite imagery during the report week.
Geological Summary. The flat-topped summit of the central cone of Ebeko volcano, one of the most active in the Kuril Islands, occupies the northern end of Paramushir Island. Three summit craters located along a SSW-NNE line form Ebeko volcano proper, at the northern end of a complex of five volcanic cones. Blocky lava flows extend west from Ebeko and SE from the neighboring Nezametnyi cone. The eastern part of the southern crater contains strong solfataras and a large boiling spring. The central crater is filled by a lake about 20 m deep whose shores are lined with steaming solfataras; the northern crater lies across a narrow, low barrier from the central crater and contains a small, cold crescentic lake. Historical activity, recorded since the late-18th century, has been restricted to small-to-moderate explosive eruptions from the summit craters. Intense fumarolic activity occurs in the summit craters, on the outer flanks of the cone, and in lateral explosion craters.