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United States · Stratovolcano

Tanaga

Type
Stratovolcano
Elevation
1806m
Last eruption
1914
Tanaga
Photo: M. L. Coombs · Public domain · Wikimedia Commons
Type
Stratovolcano
Country
United States
Region
North America / Aleutian Ridge Volcanic Arc
Elevation
1806m
Coordinates
51.885, -178.146
Last eruption
1914
Tectonic setting
Subduction zone / Intermediate crust (15-25 km)
Landform
Composite
Major rock type
Basalt / Picro-basalt

Geological summary

Tanaga volcano, the second largest volcanic center of the central Aleutians, is the central and highest of three youthful stratovolcanoes oriented along a roughly E-W line at the NW tip of Tanaga Island.

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

From Wikipedia

Tanaga is a 5,924-foot (1,806 m) stratovolcano in the Aleutian Range of the U.S. state of Alaska. There have been three known eruptions since 1763. The most recent was in 1914 and produced lava flows. It sits west of another stratovolcano known as Mount Takawangha, which last erupted in 1550.

Wikipedia · CC BY-SA · Read full article →

Eruption history

8 recordedGlossary

Record summary

Confirmed eruptions
6
Uncertain eruptions
2
Span of confirmed record
1050 BCE – 1914
Largest confirmed eruption
VEI 0 (1914, the most recent of 2)
Confirmed eruptions since 1900
1
Summary (VEI over time)
Click a bar to see individual eruptions · Use arrow keys to move between bars, Enter to open
1050 BCE~852 BCE · 1 eruptions · max VEI 0655 BCE~457 BCE · 1 eruptions · max VEI ?926~1124 · 1 eruptions · max VEI ?1519~1716 · 1 eruptions · max VEI ?1716~1914 · 4 eruptions · max VEI 01050 BCE260 BCE33311241716

Detailed timeline

  1. 1914VEI 0Observed
    1914-07-02 – end unknown
  2. 1829VEI ?Observed
    1829-07-02 – end unknown
  3. 1791VEI ?Method not stated
    1791-06-07 – end unknown
  4. 1763VEI ?Method not stated
    1763 – 1770
  5. 1550VEI ?Geological estimate
    1550 – end unknown
    Tanaga, Sajaka Two
  6. 1050VEI ?Geological estimate
    1050 – end unknown
    Tanaga
  7. 550 BCE (±2500 yrs)VEI ?Geological estimate
    550 BCE – end unknown
    Sajaka One
  8. 1050 BCEVEI 0Geological estimate
    1050 BCE – end unknown
    Sajaka One

Nearby volcanoes

External links

⚠ For reference only. Not for emergency response.