Iliinsky

Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 51.498°N
  • 157.203°E

  • 1555 m
    5100 ft

  • 300030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Iliinsky.

The Global Volcanism Program has no Weekly Reports available for Iliinsky.

The Global Volcanism Program has no Bulletin Reports available for Iliinsky.

Eruptive History


Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).


Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1901 Unknown Confirmed 3 Historical Observations NE flank
0050 (?) Unknown Confirmed   Radiocarbon (uncorrected)
2050 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected)
2850 BCE (?) Unknown Confirmed 5 Radiocarbon (uncorrected) ZLT tephra
4550 BCE (?) Unknown Confirmed   Radiocarbon (uncorrected)
5700 BCE ± 50 years Unknown Confirmed 4 Tephrochronology

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Photo Gallery


The conical Ilyinsky volcano, rising dramatically at sunrise above the NE shore of Kurile Lake, was constructed beginning about 8000 years ago within a 4-km-wide caldera of about the same age as the Kurile Lake caldera. The 1578-m-high stratovolcano is one of several visible from the shores of one of Kamchatka's most scenic lakes. Its latest eruption, in 1901, created a 1-km-wide crater on the NE flank. The 10-km-wide Kurile Lake caldera was the source of one of Kamchatka's largest Holocene explosive eruptions about 8000 years ago.

Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk).
See title for photo information.
Volcanologists from the Institute of Volcanic Geology and Geochemistry in Petropavlovsk and the New Mexico Institute of Mining and Technology excavate a section through layered pyroclastic-fall deposits from Ilyinsky volcano in southern Kamchatka. Detailed study of the products of individual eruptions are used to determine the timing, frequency, and magnitude of those eruptions. The sequence of tephra layers shown here was deposited by explosive eruptions from Ilyinsky during the last 5000 years.

Photo by Phil Kyle, New Mexico Institute of Mining and Technology, 1996 (courtesy of Vera Ponomareva, IUGG, Petropavlovsk).
See title for photo information.
The maar crater in the foreground was created during an eruption in 1901 on the NE flank of Ilyinsky volcano. Light-colored tephra deposits from the maar-forming eruption cap the rim of the crater and blanket the flanks of the volcano. At the end of the eruption, lava was extruded on the floor of the 200-m deep, 1-km-wide crater. Snow-streaked Zheltovsky, another historically active stratovolcano, rises to the NE.

Photo by Philip Kyle, New Mexico Institute of Mining and Technology, 1996 (courtesy of Vera Ponomareva, IVGG, Petropavlovsk).
See title for photo information.
A prominent 1-km-wide maar was formed in 1901 on the NE flank of Ilyinsky volcano. The northern wall of the crater exposes areas of light-colored hydrothermally altered rocks (bottom) that are surrounded by talus deposits. The dark-colored bedded layers above this are pyroclastic-fall deposits of ash and scoria from earlier eruptions of Ilyinsky. The light-colored layers (upper left) on the rim of the crater are pyroclastic-fall and pyroclastic-surge deposits from the 1907 eruption.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
See title for photo information.
The bedded layers at the upper half of the photo are pyroclastic-fall and pyroclastic-surge deposits produced by successive explosive eruptions accompanying formation of a maar on the NE flank of Ilyinsky volcano in 1901. This eruption, the only one in historical time from Ilyinsky, created a new 800 x 1000 m wide crater, 200-m deep, that is breached by a gorge on the NE side.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
See title for photo information.
Zheltovsky stratovolcano rises across a broad valley NE of Ilyinsky volcano. The flat shelf on the right flank of Zheltovsky is the eastern rim of a 4 x 5 km, largely buried Pleistocene caldera. The dark mass seen halfway down the left horizon is a lava dome constructed over the western rim of the caldera. The western rim of a smaller, late-Holocene caldera forms the break in slope on the left side just below the summit lava-dome complex. The crater in the foreground is a NE-flank maar of Ilyinsky that formed in 1901.

Photo by Nikolai Smelov, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
See title for photo information.
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.

Photo by Oleg Dirksen, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
See title for photo information.
llyinsky volcano, seen here across Kurile Lake from the SW at the outlet of the Ozernaya River, is a conical 1578-m-high stratovolcano constructed during the past 8000 years above the NE rim of Kurile Lake caldera. The flat ridge with a steep terminous on the left horizon is the profile of north-flank lava flows that were erupted from Ilyinsky about 1500-2000 years ago.

Photo by Oleg Dirksen, 1996 (courtesy of Vera Ponomareva, Institute of Volcanic Geology and Geochemistry, Petropavlovsk).
See title for photo information.

Smithsonian Sample Collections Database


There are no samples for Iliinsky in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites