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United States · Lava dome

Augustine Volcano

Augustine

Type
Lava dome
Elevation
1218m
Last eruption
2006
Augustine Volcano
Photo: McGimsey, Game · Public domain · Wikimedia Commons
Type
Lava dome
Country
United States
Region
North America / Alaska Peninsula Volcanic Arc
Elevation
1218m
Coordinates
59.363, -153.435
Last eruption
2006
Tectonic setting
Subduction zone / Continental crust (> 25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

Augustine volcano, rising above Kamishak Bay in the southern Cook Inlet about 290 km SW of Anchorage, is the most active volcano of the eastern Aleutian arc.

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

From Wikipedia

Augustine Volcano is a stratovolcano in Alaska consisting of a central complex of summit lava domes and flows surrounded by an apron of pyroclastic, lahar, avalanche, and ash deposits. The volcano forms Augustine Island, colloquially called Mount St. Augustine, in southwestern Cook Inlet in the Kenai Peninsula Borough of southcentral coastal Alaska, about 70 miles (113 km) west of Homer and about 175 miles (282 km) southwest of Anchorage.

Wikipedia · CC BY-SA · Read full article →

Eruption history

22 recordedGlossary

Record summary

Confirmed eruptions
22
Uncertain eruptions
0
Span of confirmed record
5420 BCE (±50 yrs) – 2006
Largest confirmed eruption
VEI 4 (1986, the most recent of 4)
Confirmed eruptions since 1900
7
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
5420 BCE~5172 BCE · 1 eruptions · max VEI ?4182 BCE~3935 BCE · 1 eruptions · max VEI ?2202 BCE~1955 BCE · 1 eruptions · max VEI ?1955 BCE~1707 BCE · 1 eruptions · max VEI ?470 BCE~222 BCE · 2 eruptions · max VEI ?222 BCE~25 · 1 eruptions · max VEI ?273~520 · 1 eruptions · max VEI ?520~768 · 1 eruptions · max VEI ?768~1015 · 1 eruptions · max VEI ?1015~1263 · 1 eruptions · max VEI ?1510~1758 · 2 eruptions · max VEI 41758~2005 · 9 eruptions · max VEI 45420 BCE3687 BCE1707 BCE251758

Detailed timeline

  1. 2005VEI 3Observed
    2005-12-09 – 2006-04-27
  2. 1986VEI 4Observed
    1986-03-27 – 1986-08-31
  3. 1976VEI 4Observed
    1976-01-22 – 1977-05-14
  4. 1971VEI 1Observed
    1971-10-07 – 1971-10-08
  5. 1963VEI 2Observed
    1963-10-11 – 1964-08-19
  6. 1935VEI 3Observed
    1935-03-13 – 1935-08-18
  7. 1908VEI 1Observed
    1908-07-02 – end unknown
  8. 1883VEI 4Observed
    1883-10-06 – 1884-07-02
  9. 1812VEI 3Observed
    1812-07-02 – end unknown
  10. 1650 (±100 yrs)VEI ?Geological estimate
    1650 – end unknown
  11. 1540 (±100 yrs)VEI 4Geological estimate
    1540 – end unknown
  12. 1230 (±50 yrs)VEI ?Geological estimate
    1230 – end unknown
  13. 930 (±150 yrs)VEI ?Geological estimate
    930 – end unknown
  14. 570 (±150 yrs)VEI ?Geological estimate
    570 – end unknown
  15. 340 (±40 yrs)VEI ?Geological estimate
    340 – end unknown
  16. 120 BCE (±40 yrs)VEI ?Geological estimate
    120 BCE – end unknown
  17. 310 BCE (±100 yrs)VEI ?Geological estimate
    310 BCE – end unknown
  18. 350 BCE (±200 yrs)VEI ?Geological estimate
    350 BCE – end unknown
  19. 1820 BCE (±300 yrs)VEI ?Geological estimate
    1820 BCE – end unknown
  20. 2040 BCE (±300 yrs)VEI ?Geological estimate
    2040 BCE – end unknown
  21. 4150 BCE (±100 yrs)VEI ?Geological estimate
    4150 BCE – end unknown
  22. 5420 BCE (±50 yrs)VEI ?Geological estimate
    5420 BCE – end unknown

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.