Global Volcanism Program | Image GVP-05754
Iliinsky, seen here from the NW, was constructed beginning about 8,000 years ago within a 4-km-wide caldera about the same age as the adjacent Kurile Lake caldera. A period of explosive volcanism during the mid-Holocene lasted 1,000-1,500 years. Growth of the modern cone was completed during the late Holocene. Lava flows cover much of the northern flanks and a 1901 eruption produced a 1-km-wide crater on the NE flank.
Photo by Oleg Dirksen, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
This image is made available under the Creative Commons BY-NC 4.0 license terms.