United States · Stratovolcano
Chagulak Island
Chagulak
- Type
- Stratovolcano
- Elevation
- 1028m
- Last eruption
- Unknown
- Type
- Stratovolcano
- Country
- United States
- Region
- North America / Aleutian Ridge Volcanic Arc
- Elevation
- 1028m
- Coordinates
- 52.572, -171.138
- Last eruption
- Unknown
- Tectonic setting
- Subduction zone / Intermediate crust (15-25 km)
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
The 3-km-diameter island of Chagulak is the exposed summit of a stratovolcano in the Islands of the Four Mountains group of the Aleutians. The sharp-topped summit is ~11 km NE of the summit of Amukta and 35 km W of Yunaska volcano. The visible edifice is steep and strongly eroded. No eruptions have been recorded and its age is not precisely known.
From Wikipedia
Chagulak Island is a small, uninhabited volcanic island in the Islands of Four Mountains group in the Aleutian Islands of southwestern Alaska, United States. The 1.9 mi (3.1 km)-wide island consists of a single cone that reaches an elevation of 3,747 ft. Chagulak is a stratovolcano and is separated from the nearby Amukta Island by a channel about 4.3 miles (6.9 km) wide; though the two islands are joined underwater. No eruptions have been recorded and very little is known about the volcano, as the only study done on Chagulak so far is a single chemical analysis of a "low-potassium, high-alumina basaltic andesite" from the north shore.
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Eruption history
GlossaryDetailed timeline
No eruption records available.
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.