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Japan · Stratovolcano

North Iwo Jima

Funka Asane

Type
Stratovolcano
Elevation
20m (submarine)
Last eruption
2022
North Iwo Jima
Photo: Chisatos at ja.wikipedia · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
Japan
Region
Northwestern Pacific / Ogasawara Volcanic Arc
Elevation
20m (submarine)
Coordinates
25.455, 141.239
Last eruption
2022
Tectonic setting
Subduction zone / Crustal thickness unknown
Landform
Composite
Major rock type
Basalt / Picro-basalt
Geological summary

Eruptions have been recorded since the 18th century from Funka Asane, a submarine edifice ~4 km NW of Kita-Ioto, the northernmost of the Kazan Retto (Volcano Islands), in the southern Ogasawara Volcanic Arc. Frequent observations of discolored water above this vent area have been reported, including 16 times during 1982-2007. Eruptive activity in 2022 produced a plume to 5.5 km altitude. No eruptions are known from the heavily eroded, steep-sided, Kita-Ioto basaltic cone. Multiple submarine volcanic features extend ~30 km from the island to the NW and S, comparable to other large volcanic complexes along the arc.

Eruption history

23 recordedGlossary
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1780~1804 · 1 eruptions · max VEI 01877~1902 · 1 eruptions · max VEI 01926~1950 · 1 eruptions · max VEI 21950~1974 · 2 eruptions · max VEI 01974~1999 · 7 eruptions · max VEI 01999~2023 · 11 eruptions · max VEI 117801829190219501999

Detailed timeline

  1. 2023VEI ?Observed
    2023-05-11 – 2023-05-11
  2. 2022VEI 1Observed
    2022-03-27 – 2022-03-27
    Funka-Asane
  3. 2007VEI ?Observed
    2007-01-22 – 2007-10-17
    Funka-Asane
  4. 2006VEI ?Observed
    2006-03-10 – 2006-03-10
    Funka-Asane
  5. 2003VEI 0Method not stated
    2003-03-10 – 2003-03-10
    Funka-Asane
  6. 2003VEI 0Method not stated
    2003-11-04 – 2003-11-04
    Funka-Asane
  7. 2002VEI 0Method not stated
    2002-02-28 – 2002-02-28
    Funka-Asane
  8. 2001VEI 0Method not stated
    2001-10-29 – 2001-10-29
    Funka-Asane
  9. 2000VEI 0Method not stated
    2000-01-25 – 2000-01-26
    Funka-Asane
  10. 2000VEI 0Method not stated
    2000-10-30 – 2000-10-30
    Funka-Asane
  11. 1999VEI 0Method not stated
    1999-09-07 – 1999-09-16
    Funka-Asane
  12. 1998VEI 0Method not stated
    1998-05-21 – 1998-05-21
    Funka-Asane
  13. 1998VEI 0Method not stated
    1998-10-27 – 1998-10-27
    Funka-Asane
  14. 1997VEI 0Method not stated
    1997-03-10 – 1997-03-10
    Funka-Asane
  15. 1989VEI 0Method not stated
    1989-07-16 – 1989-07-16
    Funka-Asane
  16. 1987VEI 0Method not stated
    1987-08-16 – 1987-08-16
    Funka-Asane
  17. 1983VEI 0Method not stated
    1983-07-16 – 1983-07-16
    Funka-Asane
  18. 1982VEI 0Method not stated
    1982-06-16 – 1982-06-16
    Funka-Asane
  19. 1968VEI 0Method not stated
    1968-08-16 – 1968-08-16
    Funka-Asane
  20. 1953VEI 0Method not stated
    1953-05-16 – 1953-05-16
    Funka-Asane
  21. 1930VEI 2Observed
    1930-07-02 – 1945-07-02
    Funka-Asane
  22. 1880VEI 0Observed
    1880-07-02 – 1889-07-02
    Funka-Asane
  23. 1780VEI 0Observed
    1780 – end unknown
    Funka-Asane

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External links

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