United States · Shield volcano
Yunaska Island
Yunaska
- Type
- Shield volcano
- Elevation
- 550m
- Last eruption
- 1937
- Type
- Shield volcano
- Country
- United States
- Region
- North America / Aleutian Ridge Volcanic Arc
- Elevation
- 550m
- Coordinates
- 52.639, -170.632
- Last eruption
- 1937
- Tectonic setting
- Subduction zone / Intermediate crust (15-25 km)
- Landform
- Shield
- Major rock type
- Andesite / Basaltic andesite
Geological summary
The elongated 9 x 23 km Yunaska in the Islands of the Four Mountains group of the Aleutian Islands is comprised of two distinct volcanic centers.
Excerpt from the Global Volcanism Program, Smithsonian Institution · Read the full summary on GVP →
From Wikipedia
Yunaska is an uninhabited island which is the largest of the Islands of Four Mountains group in the Aleutian Islands of southwestern Alaska, United States. It has a land area of 66.834 square miles according to the 2000 census.
Wikipedia · CC BY-SA · Read full article →
Eruption history
6 recordedGlossaryRecord summary
- Confirmed eruptions
- 3
- Uncertain eruptions
- 3
- Span of confirmed record
- 1824 – 1937
- Largest confirmed eruption
- VEI 3 (1937, 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
Detailed timeline
- 1937VEI 3Observed1937-11-03 – 1937-11-04
- 1929VEI ?Method not stated1929-07-02 – end unknown
- 1873VEI 2Method not stated1873-07-02 – end unknown
- 1830VEI 2Observed1830-07-02 – end unknown
- 1824VEI 3Observed1824-07-02 – end unknown
- 1817VEI ?Method not stated1817-07-02 – end unknown
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.