Zhupanovsky, Kamchatka : an explosion sent ash up to 8 km .

Zhupanovsky, Kamchatka : an explosion sent ash up to 8 km .

A moderate activity of the volcano continues. Ash explosions up to 19,700-26,240 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.

A moderate activity of the volcano continues. According to Tokyo VAAC data, an explosion sent ash up to 8 km a.s.l. at 1320 UTC on 24 March. Satellite data by KVERT showed an ash cloud in size 8×10 km drifted on the height 3.5-4.0 km a.s.l. for about 134 km to the north-west from the volcano on 24 March. The volcano was quiet or obscured by clouds in the other days of week.

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.

March 26, 2016. Zhupanovsky, Kamchatka :

53.59 N, 159.15 E;
Elevation 9702 ft (2958 m)
Aviation Color Code is ORANGE

 

Sources : Kvert , Gvp .

Photo : A. Sokorenko, IVS FEB RAS 20/1/2015

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