Skip to main content
← Back to map
⇄ Compare

Fukutoku-Okanoba

Fukutoku-Oka-no-Ba

Pyroclastic cone · Japan · 29m (submarine)

Fukutoku-Oka-no-ba is a submarine volcano located 5 km NE of Minami-Iwojima island (right). Water discoloration is frequently observed near the volcano and several ephemeral islands formed in the 20th century. The first of these created Shin-Iwojima in 1904, and the island seen in this 21 January 1986 photo; wave erosion removed the island by 8 March.
Fukutoku-Oka-no-ba is a submarine volcano located 5 km NE of Minami-Iwojima island (right). Water discoloration is frequently observed near the volcano and several ephemeral islands formed in the 20th century. The first of these created Shin-Iwojima in 1904, and the island seen in this 21 January 1986 photo; wave erosion removed the island by 8 March. · Photo: Photo by G. Iwashita, 1986 (Japan Meteorological Agency). · Wikimedia Commons
Type
Pyroclastic cone
Country
Japan
Region
Northwestern Pacific Volcanic Regions / Ogasawara Volcanic Arc
Elevation
29m (submarine)
Coordinates
24.285, 141.481
Last eruption
2021
Tectonic setting
Subduction zone / Crustal thickness unknown
Landform
Composite
Major rock type
Trachyandesite / Basaltic Trachyandesite
Geological summary

Fukutoku-Oka-no-ba is a submarine volcano located 5 km NE of the island of Minami-Ioto. Water discoloration is frequently observed, and several ephemeral islands have formed in the 20th century. The first of these formed Shin-Ioto ("New Sulfur Island") in 1904, and the most recent island was formed in 1986. The volcano is part of an elongated edifice with two major topographic highs trending NNW-SSE, and is a trachyandesitic volcano geochemically similar to Ioto.

From Wikipedia

Fukutoku-Okanoba (福徳岡ノ場) is a submarine volcano that is part of the Volcano Islands in the Bonin Islands of Japan. It is located five kilometers (3.1 mi) northeast of the island of South Iwo Jima.

Wikipedia · CC BY-SA · Read full article →

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1904~1916 · 2 eruptions · max VEI 31939~1951 · 1 eruptions · max VEI 01951~1963 · 9 eruptions · max VEI 01963~1974 · 7 eruptions · max VEI 21974~1986 · 1 eruptions · max VEI 01986~1998 · 9 eruptions · max VEI 21998~2009 · 7 eruptions · max VEI 12009~2021 · 2 eruptions · max VEI 419041927196319862009

Detailed timeline

  1. 2021VEI 4Observed
    2021-08-13 – 2021-09-12
  2. 2010VEI 1Observed
    2010-02-03 – 2010-04-08
    Submarine site
  3. 2005VEI 1Observed
    2005-07-02 – 2005-07-21
  4. 2005VEI 0Geological estimate
    2005-09-11 – 2007-02-16
  5. 2002VEI 0Geological estimate
    2002-12-19 – 2003-03-11
  6. 2001VEI 0Geological estimate
    2001-10-30 – 2002-06-19
  7. 2000VEI 0Geological estimate
    2000-07-26 – 2001-06-13
  8. 1999VEI 0Geological estimate
    1999-09-08 – 2000-02-18
  9. 1998VEI 0Geological estimate
    1998-10-16 – 1999-01-12
  10. 1997VEI 0Geological estimate
    1997-11-18 – 1998-05-21
  11. 1995VEI 0Geological estimate
    1995-11-21 – 1997-07-28
  12. 1994VEI 0Geological estimate
    1994-07-28 – 1994-07-28
  13. 1992VEI 1Observed
    1992-11-10 – 1993-09-09
  14. 1991VEI 0Geological estimate
    1991-07-19 – 1991-10-18
  15. 1987VEI 0Observed
    1987-07-14 – 1987-08-30
  16. 1987VEI 0Geological estimate
    1987-09-04 – 1991-02-06
  17. 1986VEI 2Observed
    1986-01-18 – 1986-03-28
  18. 1986VEI 0Geological estimate
    1986-04-07 – 1987-06-26
  19. 1976VEI 0Geological estimate
    1976-08-02 – 1985-12-23
  20. 1974VEI 2Observed
    1974-12-24 – 1975-11-13
  21. 1973VEI 2Observed
    1973-12-18 – 1974-02-16
    3.8 km NNE of Minami-Iwo-jima
  22. 1972VEI 0Geological estimate
    1972-10-01 – 1972-10-01
  23. 1968VEI 0Geological estimate
    1968-02-09 – 1968-02-09
  24. 1968VEI 0Geological estimate
    1968-08-14 – 1968-08-20
  25. 1967VEI 0Geological estimate
    1967-07-01 – 1967-07-01
  26. 1963VEI 0Geological estimate
    1963-10-27 – Ongoing
  27. 1962VEI 0Geological estimate
    1962-07-01 – 1962-10-01
  28. 1960VEI 0Geological estimate
    1960-07-01 – 1960-09-01
  29. 1959VEI 0Geological estimate
    1959-07-01 – 1959-10-01
  30. 1958VEI 0Geological estimate
    1958-07-01 – 1958-10-01
  31. 1956VEI 0Geological estimate
    1956-04-01 – 1956-05-01
  32. 1955VEI 0Geological estimate
    1955-04-01 – 1955-04-01
  33. 1954VEI 0Geological estimate
    1954-02-04 – Ongoing
  34. 1953VEI 0Geological estimate
    1953-12-01 – 1953-12-01
  35. 1952VEI 0Geological estimate
    1952-06-20 – 1952-06-20
  36. 1950VEI 0Geological estimate
    1950-02-01 – 1950-02-01
  37. 1914VEI 3Observed
    1914-01-13 – 1914-08-21
    Shin-Iwo-jima
  38. 1904VEI 3Observed
    1904-11-14 – 1905-05-16
    Shin-Iwo-jima

External links

⚠ For reference only. Not for emergency response.