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Report on Zhupanovsky (Russia) — 5 November-11 November 2014

Smithsonian / US Geological Survey Weekly Volcanic Activity Report, 5 November-11 November 2014
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2014. Report on Zhupanovsky (Russia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 5 November-11 November 2014. Smithsonian Institution and US Geological Survey.

Volcano Profile |  Weekly Report (5 November-11 November 2014)


Zhupanovsky

Russia

53.589°N, 159.15°E; summit elev. 2899 m

All times are local (unless otherwise noted)


KVERT reported that a strong explosive eruption at Zhupanovsky occurred at 0955 on 8 November, generating an ash plume that rose to an altitude of 10 km (32,800 ft) a.s.l. and drifted 26 km SSW. The Aviation Color Code was raised to Orange. On 9 November ash plumes detected in satellite images rose to altitudes of 3-4 km (9,800-13,100 ft) a.s.l. and drifted 190-250 km SE.

Geologic Background. The Zhupanovsky volcanic massif consists of four overlapping stratovolcanoes along a WNW-trending ridge. The elongated volcanic complex was constructed within a Pliocene-early Pleistocene caldera whose rim is exposed only on the eastern side. Three of the stratovolcanoes were built during the Pleistocene, the fourth is Holocene in age and was the source of all of Zhupanovsky's historical eruptions. An early Holocene stage of frequent moderate and weak eruptions from 7000 to 5000 years before present (BP) was succeeded by a period of infrequent larger eruptions that produced pyroclastic flows. The last major eruption took place about 800-900 years BP. Historical eruptions have consisted of relatively minor explosions from the third cone.

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)