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Report on Ebeko (Russia) — 22 February-28 February 2017

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 22 February-28 February 2017
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2017. Report on Ebeko (Russia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 22 February-28 February 2017. Smithsonian Institution and US Geological Survey.

Volcano Profile |  Weekly Report (22 February-28 February 2017)


Ebeko

Russia

50.686°N, 156.014°E; summit elev. 1103 m

All times are local (unless otherwise noted)


KVERT reported that, according to observers in Severo-Kurilsk (Paramushir Island) about 7 km E, explosions on 27 February at Ebeko produced an ash plume that rose to an altitude of 2 km (6,600 ft) a.s.l. and drifted about 6 km N. The Aviation Color Code was raised to Orange (the second highest level on a four-color scale).

Geologic Background. 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.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)