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United States · Stratovolcano

Koniuji Volcano

Koniuji

Type
Stratovolcano
Elevation
273m
Last eruption
-1150
Koniuji Volcano
Photo: Edibobb · CC BY 3.0 · Wikimedia Commons
Type
Stratovolcano
Country
United States
Region
North America / Aleutian Ridge Volcanic Arc
Elevation
273m
Coordinates
52.220, -175.130
Last eruption
-1150
Tectonic setting
Subduction zone / Intermediate crust (15-25 km)
Landform
Composite
Major rock type
Andesite / Basaltic andesite

Geological summary

The very small, 1 x 1.5 km Koniuji Island, between Atka and Kasatochi volcanoes, is the emergent top of a mostly submarine volcano.

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

Eruption history

3 recordedGlossary

Record summary

Confirmed eruptions
3
Uncertain eruptions
0
Span of confirmed record
3850 BCE (±3100 yrs) – 1150 BCE
Largest confirmed eruption
No VEI recorded
Confirmed eruptions since 1900
0
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
3850 BCE~3657 BCE · 1 eruptions · max VEI ?2693 BCE~2500 BCE · 1 eruptions · max VEI ?1343 BCE~1150 BCE · 1 eruptions · max VEI ?3850 BCE3271 BCE2500 BCE1921 BCE1343 BCE

Detailed timeline

  1. 1150 BCE (±1900 yrs)VEI ?Geological estimate
    1150 BCE – end unknown
  2. 2650 BCE (±2000 yrs)VEI ?Geological estimate
    2650 BCE – end unknown
  3. 3850 BCE (±3100 yrs)VEI ?Geological estimate
    3850 BCE – end unknown

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.