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Japan · Stratovolcano

Mount Azuma-kofuji

Azumayama

Type
Stratovolcano
Elevation
1949m
Last eruption
1977
Mount Azuma-kofuji
Photo: Brian Adler (BrianAdler) · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
Japan
Region
Northwestern Pacific / Northeast Japan Volcanic Arc
Elevation
1949m
Coordinates
37.735, 140.244
Last eruption
1977
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

The Azumayama volcanic group consists of a cluster of stratovolcanoes, shield volcanoes, lava domes, and pyroclastic cones.

Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →

From Wikipedia

Mount Azuma-kofuji (吾妻小富士) is an active stratovolcano in Fukushima prefecture, Japan.

Wikipedia · CC BY-SA · Read full article →

Eruption history

24 recordedGlossary

Record summary

Confirmed eruptions
19
Uncertain eruptions
5
Span of confirmed record
5700 BCE (±50 yrs) – 1977
Largest confirmed eruption
VEI 3 (4150 BCE)
Confirmed eruptions since 1900
2
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
5700 BCE~5444 BCE · 1 eruptions · max VEI 25444 BCE~5188 BCE · 1 eruptions · max VEI 14676 BCE~4420 BCE · 1 eruptions · max VEI ?4165 BCE~3909 BCE · 1 eruptions · max VEI 33141 BCE~2885 BCE · 1 eruptions · max VEI 12885 BCE~2629 BCE · 1 eruptions · max VEI ?1861 BCE~1606 BCE · 1 eruptions · max VEI ?1094 BCE~838 BCE · 1 eruptions · max VEI ?326 BCE~70 BCE · 1 eruptions · max VEI ?442~698 · 1 eruptions · max VEI ?1209~1465 · 1 eruptions · max VEI 11465~1721 · 1 eruptions · max VEI 11721~1977 · 12 eruptions · max VEI 15700 BCE3909 BCE1861 BCE70 BCE1721

Detailed timeline

  1. 1977VEI 1Observed
    1977-12-07 – 1977-12-07
    Issaikyo (Oana)
  2. 1966VEI 1Method not stated
    1966-05-16 – 1966-08-16
    Issaikyo (Oana)
  3. 1952VEI 1Method not stated
    1952-06-18 – end unknown
    Issaikyo
  4. 1950VEI 1Observed
    1950-02-10 – 1950-02-19
    Issaikyo (Oana and NW of Oana)
  5. 1914VEI 1Method not stated
    1914-11-12 – 1914-11-14
    Issaikyo
  6. 1896VEI 1Method not stated
    1896-09-05 – 1896-09-19
  7. 1895VEI 1Observed
    1895-03-08 – 1895-09-13
    Issaikyo (near Oana)
  8. 1894VEI 1Observed
    1894-03-16 – 1894-04-12
    Issaikyo (near Oana)
  9. 1893VEI 1Observed
    1893-05-19 – 1893-07-13
    Issaikyo (west of Oana)
  10. 1893VEI 1Observed
    1893-11-09 – 1893-11-10
    Issaikyo
  11. 1844VEI 1Method not stated
    1844-07-02 – end unknown
    Issaikyo (Oana)
  12. 1800VEI ?Observed
    1800-07-02 – end unknown
    Issaikyo (Oana)
  13. 1711VEI 1Observed
    1711 – end unknown
    Issaikyo (Oana area)
  14. 1331VEI 1Observed
    1331 – end unknown
    Issaikyo
  15. 600 (±200 yrs)VEI ?Geological estimate
    600 – end unknown
  16. 150 BCE (±200 yrs)VEI ?Geological estimate
    150 BCE – end unknown
    Issaikyo
  17. 950 BCE (±100 yrs)VEI ?Geological estimate
    950 BCE – end unknown
    Issaikyo
  18. 1800 BCE (±50 yrs)VEI ?Geological estimate
    1800 BCE – end unknown
    Issaikyo
  19. 2750 BCE (±200 yrs)VEI ?Geological estimate
    2750 BCE – end unknown
    Issaikyo
  20. 3000 BCE (±50 yrs)VEI 1Geological estimate
    3000 BCE – end unknown
    Issaikyo
  21. 4150 BCE (±500 yrs)VEI 3Geological estimate
    4150 BCE – end unknown
    Azuma Ko-Fuji
  22. 4550 BCE (±1000 yrs)VEI ?Geological estimate
    4550 BCE – end unknown
    Issaikyo-Minami
  23. 5400 BCE (±200 yrs)VEI 1Geological estimate
    5400 BCE – end unknown
    Goshiki-numa
  24. 5700 BCE (±50 yrs)VEI 2Geological estimate
    5700 BCE – end unknown
    Oke-numa

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.