Iliinsky

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  • 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

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The conical Iliinsky volcano (also spelled Ilyinsky), rising dramatically to 1555 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. 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.

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.


Synonyms

Iliinskaya | Iliinskaia, Sopka | Vine | Wine | Ilina | Ozernaia | Ilinsky | Iliyin Sopka | Ilyinsky
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).
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).
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).
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).
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).
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).
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).
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).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Braitseva O A, Melekestsev I V, Ponomareva V V, Sulerzhitsky L D, 1995. Ages of calderas, large explosive craters and active volcanoes in the Kuril-Kamchatka region, Russia. Bull Volc, 57: 383-402.

Erlich E N, 1986. Geology of the calderas of Kamchatka and Kurile Islands with comparison to calderas of Japan and the Aleutians, Alaska. U S Geol Surv Open-File Rpt, 86-291: 1-300.

Fedotov S A, Masurenkov Y P (eds), 1991. Active Volcanoes of Kamchatka. Moscow: Nauka Pub, 2 volumes.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Kozhemyaka N N, 1995. Active volcanoes of Kamchatka: types and growth time of cones, total volumes of erupted material, productivity, and composition of rocks. Volc Seism, 16: 581-594 (English translation).

Masurenkov Y P (ed), 1980. Volcanic Center: Structure, Dynamics and Products. Moscow: Nauka Pub, 299 p (in Russian).

Ponomareva V V, 1992. . (pers. comm.).

Ponomareva V V, Kyle P R, Melekestsev I V, Rinkleff P G, Dirksen O V, Sulerzhitsky L D, Zaretskaia N E, Rourke R, 2004. The 7600 (14C) year BP Kurile Lake caldera-forming eruption, Kamchatka, Russia: stratigraphy and field relationships. J Volc Geotherm Res, 136: 199-222.

Ponomareva V V, Melekestsev I V, Dirksen O V, 2006. Sector collapses and large landslides on late Pleistocene-Holocene volcanoes in Kamchatka, Russia. J Volc Geotherm Res, 158: 117-138.

Vlodavetz V I, Piip B I, 1959. Kamchatka and Continental Areas of Asia. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 8: 1-110.

Volcano Types

Stratovolcano
Caldera
Lava dome(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Andesite / Basaltic Andesite
Dacite
Basalt / Picro-Basalt

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
410
4,173

Affiliated Databases

Large Eruptions of Iliinsky Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.