Raikoke

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 48.292°N
  • 153.25°E

  • 551 m
    1807 ft

  • 290250
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Raikoke.

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

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

A low, 551-m-high truncated volcano forms the small barren Raikoke Island, which lies 16 km across the Golovnin Strait from Matua Island in the central Kuriles. The oval-shaped basaltic island is only 2 x 2.5 km wide and rises above a submarine terrace with a depth of 130 m. The steep-walled crater, highest on the SE side, is 700 m wide and 200 m deep. Lava flows mantle the eastern side of the island. A catastrophic eruption of Raikoke in 1778 during which the upper third of the island was said to have been destroyed prompted the first volcanological investigation in the Kuril Islands two years later. Reports of eruptions in 1777 and 1780 are erroneous (Gorshkov, 1970). Another powerful eruption in 1924 greatly deepened the crater and changed the outline of the island.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1924 Feb 15 Unknown Confirmed 4 Historical Observations
1778 Unknown Confirmed 4 Historical Observations
1765 ± 5 years Unknown Confirmed 2 Historical Observations

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

Rakhohkko | Raikoketo | Raukoke | Raykoke | Ralkokeshima | Raikoku
Raikoke Island, seen here from the SE, lies 50 km SW of Shiashkotan Island and 16 km across the Golovnin Strait to the NE of its closest neighboring volcano on Matua Island. The summit of the low, 551-m-high Raikoke contains a steep-walled crater, 700 m wide and 200 m deep, that is highest on the SE side. The island is only 2 x 2.5 km wide and rises above a submarine terrace at a depth of 130 m. A catastrophic eruption in 1778 prompted the first volcanological investigation in the Kurile Islands two years later.

Photo by Yoshihiro Ishizuka, 2000 (Hokkaido University).

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.

Gorshkov G S, 1958. Kurile Islands. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 7: 1-99.

Gorshkov G S, 1970. Volcanism and the Upper Mantle; Investigations in the Kurile Island Arc. New York: Plenum Publishing Corp, 385 p.

Vlasov G M, 1967. Kamchatka, Kuril, and Komandorskiye Islands: geological description. In: {Geol of the USSR}, Moscow, 31: 1-827.

Volcano Types

Stratovolcano

Tectonic Setting

Subduction zone
Intermediate crust (15-25 km)

Rock Types

Major
Basalt / Picro-Basalt

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
134
142

Affiliated Databases

Large Eruptions of Raikoke 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.