Main Volcanoes Baransky

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Name: Baransky
GVP Number: 290080
Synonims: Baranskii, Iiusu, Sashiusu
Region: Kuril Islands
Volcanic Area: Southern Kuriles
Coordinates:
45°6'11" N   148°0'53" E
Absolute Elevation: 1132 m
Status: Active
Aviation Color Code: GREEN
Location: Baransky volcano is located in the north-eastern part of the Grozny Range on Iturup Island
Type: Stratovolcano
Composition: andesites, andesite-basalts, andesite-dacites
Recent Known Eruption: 1951/7
Description
The Baransky volcano rises in the form of a strongly truncated cone to 1126 m. The lava flows of the volcano descend 4-5 km southeast to the ocean; at the same distance they extend in the opposite direction, occupying a generally oval area of ​​about 6 x 9 km, elongated across the ridge. The old summit crater with a diameter of 700-800 m is severely destroyed. Filling it entirely and partly reaching the upper reaches of the potholes, it contains a gentle, essentially pyroclastic inner cone. The crater of the latter is somewhat shifted northward and in the northern part is completely destroyed, and the crater is wide open to the north-north-west. Numerous lava flows associated with the inner crater cover a significant sector of the northern and eastern slopes of the cone. One of the streams descends to the southeast to the ocean. At the bottom of the crater in the form of a shallow shield, a dome rises, low, steep slopes of which pass into a wide peak with a diameter of about 500 m. The height of the dome above the crater bottom is about 40-50 m. The northern part of the dome is blown up, here is a chain of several small exploding funnels elongated in northwest direction, and a large, deep explosive well. From this blown up part of the dome, the youngest lava flow descends along the northwestern slope; its width in the sources reaches 500 m, in the lower part about 1 km, length - up to 2 km, and thickness - 50-60 m. Lava flow is composed of two-pyroxene andesite. At the northwestern foot of the volcano there are side formations - three closely merged strongly overgrown cones, forming a chain of northwestern strike. From them, lava flows extend to the northwest.

References

Горшков Г.С. Вулканизм Курильской островной дуги / Отв. ред. Рудич К.Н. 1967. 288 с.
Potencial Hazard
Ash clouds, ash falls, pyroclastic flows, hot avalanches and lahars are a potential hazard associated with explosive eruptions of this volcano. The volcano poses a potential hazard to international and local airlines passing in the Kuriles region, since the height of its ash emissions can reach 10-15 km above sea level, ash plumes and clouds can drift hundreds of kilometers from the volcano in different directions. In addition, the outflow of lava flows onto the slopes of the volcano and the surrounding area is possibly.


 

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