What the records say
- When
- 7600 BCE
- Kind
- Volcanic eruption
- Coordinates
- 54.80° N, 163.59° W
- Vei
- 5
- Date uncertainty
- ± 500 years
- Dated by
- Correlation: Tephrochronology
- Volcano number
- 311380
- Eruption number
- 20107
- Vei modifier
- ?
Roundtop Mountain (Alaska)
Stratovolcano in Alaska, United States
Roundtop Mountain is a stratovolcano located on the Aleutian island of Unimak in the U.S. state of Alaska. Its last eruption was sometime between 9,100 and 10,000 years ago. This geographic feature was first called "Dome" in 1897 by Lieutenant Commander J. F. Moser, of the U.S. Navy. Its name was reported as "Round Top" by the United States Coast and Geodetic Survey in 1902.
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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