Report on Zhupanovsky (Russia) — 16 November-22 November 2016
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
16 November-22 November 2016
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2016. Report on Zhupanovsky (Russia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 16 November-22 November 2016. Smithsonian Institution and US Geological Survey.
53.589°N, 159.15°E; summit elev. 2899 m
All times are local (unless otherwise noted)
KVERT reported that at 1429 on 20 November a webcam recorded ash plumes from Zhupanovsky rising to altitudes of 6-8 km (19,700-26,200 ft) a.s.l. and drifted 73 km E. The Aviation Color Code was raised from Green to Orange, the second highest level on a 4-color scale. KVERT noted that conditions were quiet after the eruption; on 22 November the Aviation Color Code was lowered to Yellow.
Geological Summary. The Zhupanovsky volcanic massif consists of four overlapping stratovolcanoes along a WNW-trending ridge. The elongated 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. An early Holocene stage of frequent moderate and weak eruptions from 7,000 to 5,000 years before present (BP) was followed by a period of infrequent larger eruptions that produced pyroclastic flows. The last major eruption took place about 800-900 BP. Recorded eruptions have consisted of relatively minor explosions from Priemysh, the third cone from the E about 2.5 km from the summit peak.