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Diaporama

Grozny volcan éruptions

volcan complexe 1211 m / 3,973 ft
Iturup Island, Iles Kuriles, 45.03°N / 147.92°E
Liste des éruptions: 1989, 1973, 1973, 1970, 1968


2009 earthquake
A magnitude 5.1 earthquake occurred 12 km SE of Grozny volcano on 26 July 2009.

1989 eruption
Small phreatic eruptions occurred from the Grozny lava dome between 3 May and August 1989. New fumaroles, fissures and small explosion craters as well as lahars were formed in the eruption.

1973 eruption
A single weak (phreatic) explosion happened at Grozny volcano in January 1973.

Baransky volcan éruptions

stratovolcan 1132 m / 3,714 ft
Iturup Island, Iles Kuriles, 45.1°N / 148.02°E
Liste des éruptions: 1951


1992 hydrothermal explosion near drill well
An exploration well into a zone of hot water 4.5 km SW of the summit of Baransky Volcano (in the Kipyaschaya River valley) was drilled in the summer of 1991. Drilling was temporarily halted at Baransky in early August, but no casing was installed. Two weeks later, a hydrothermal explosion occurred 50 m upslope, forming a crater >10 m in diameter.
A mixture of vapor, water, and a large quantity of rock fragments was erupted for several days, destroying vegetation within 50 m. The explosion was believed to have occurred when hot water moved up the borehole after drilling ceased, and escaped through its uncased walls into a permeable fissured zone near the surface.
Source: GVP / Smithsonian monthly reports

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