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Volcano Photos

Ilyinsky Volcano, Russia

 Ilyinsky Volcano, Russia, Volcano photo


Ilyinsky Volcano, Russia

The conical Ilyinsky volcano, seen here from the NW, was constructed beginning about 8000 years ago within a 4-km-wide caldera of about the same age as the adjacent Kurile Lake caldera.

A period of strong silicic explosive volcanism during the mid-Holocene lasted 1000-1500 years.

Growth of the modern cone was completed during the late Holocene.

A series of youthful lava flows cover much of the northern flanks.

The only recorded historical eruption, in 1901, produced a 1-km-wide crater on the NE flank.

The conical Ilyinsky volcano, rising dramatically to 1578 m above the NE shore of Kurile Lake, was constructed beginning about 7600 radiocarbon years ago at the NE margin of Kurile Lake caldera.

The modern edifice grew within a 4-km-wide caldera produced by collapse of an earlier volcano creating large debris avalanches at about the time of formation of the adjacent Kurile Lake caldera.

A period of strong silicic explosive volcanism during the mid-Holocene lasted about 800 years.

A series of youthful lava flows cover much of the northern flanks of Ilyinsky.

Growth of the modern cone was completed about 1900 years ago, after which a long quiescent period began.

The only recorded historical eruption, in 1901, produced a large 1-km-wide crater on the NE flank. PHOTO SOURCE: Oleg Dirksen, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.


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