What the records say
- When
- Aug 1830
- Kind
- Volcanic eruption
- Coordinates
- 54.65° N, 164.43° W
- Vei
- 2
- Vent
- Mount Finch
- Dated by
- Observations: Reported
- Volcano number
- 311350
- Eruption number
- 20052
- Vei modifier
- ?
Fisher Caldera
Volcanic caldera in the Aleutian Islands of Alaska
Fisher Caldera, also known as Mount Fisher and Fisher Volcano, is a large volcanic caldera, measuring about 6.8 miles (11 km) by 11 miles (18 km), located on Unimak Island in the Aleutian Islands of Alaska. Formed by the destructive eruption of an andesitic stratovolcano about 9,100 years ago, it contains three crater lakes, one 2 miles (3.2 km) wide and two others about 1.5 miles (2.4 km) wide.
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The source
- Smithsonian GVP Volcanoes of the World: Holocene eruptionsGlobal Volcanism Program, Smithsonian InstitutionSmithsonian terms of use: personal, educational and non-commercial use, with creditGlobal Volcanism Program, Smithsonian Institution: Volcanoes of the World v5.3, https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3Source page