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United States · Stratovolcano

Great Sitkin Volcano

Great Sitkin

Type
Stratovolcano
Elevation
1740m
Last eruption
2026
Great Sitkin Volcano
Photo: NASA · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
United States
Region
North America / Aleutian Ridge Volcanic Arc
Elevation
1740m
Coordinates
52.076, -176.130
Last eruption
2026
Tectonic setting
Subduction zone / Intermediate crust (15-25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

The Great Sitkin volcano forms much of the northern side of Great Sitkin Island.

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

Eruption history

16 recordedGlossary

Record summary

Confirmed eruptions
9
Uncertain eruptions
7
Span of confirmed record
1792 – 2026
Largest confirmed eruption
VEI 2 (2021, the most recent of 4)
Confirmed eruptions since 1900
8
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1760~1786 · 2 eruptions · max VEI ?1786~1812 · 1 eruptions · max VEI ?1812~1838 · 2 eruptions · max VEI ?1891~1917 · 1 eruptions · max VEI ?1917~1943 · 1 eruptions · max VEI 21943~1969 · 4 eruptions · max VEI 21969~1995 · 2 eruptions · max VEI 21995~2021 · 3 eruptions · max VEI 217601812189119431995

Detailed timeline

  1. 2021VEI 2Observed
    2021-05-25 – 2026-03-25
  2. 2019VEI 1Observed
    2019-06-01 – 2019-06-07
  3. 2018VEI 1Observed
    2018-06-10 – 2018-08-11
    Summit crater
  4. 1987VEI ?Method not stated
    1987-03-18 – end unknown
  5. 1974VEI 2Observed
    1974-02-19 – 1974-09-16
  6. 1950VEI ?Observed
    1950-11-05 – 1950-11-29
  7. 1949VEI 1Observed
    1949-12-30 – 1950-01-07
  8. 1946VEI ?Method not stated
    1946-08-14 – end unknown
  9. 1945VEI 2Observed
    1945-03-16 – end unknown
  10. 1933VEI 2Observed
    1933-11-16 – end unknown
  11. 1904VEI ?Method not stated
    1904-07-02 – end unknown
  12. 1829VEI ?Method not stated
    1829-07-02 – end unknown
  13. 1828VEI ?Method not stated
    1828-07-02 – end unknown
  14. 1792VEI ?Observed
    1792-05-26 – end unknown
  15. 1784VEI ?Method not stated
    1784 – end unknown
  16. 1760VEI ?Method not stated
    1760 – end unknown

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.