Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Roundtop
The flat-topped, glacier-covered Roundtop volcano, rising to the west beyond buildings of the village of False Pass, is the easternmost and lowest of an E-W-trending line of volcanoes on Unimak Island. Roundtop has produced Holocene pyroclastic flows, and a group of lava domes was constructed south of the volcano. No historical eruptions are known from the 1871-m-high stratovolcano. In the 1930s warm springs were found on its slopes. Photo by Game McGimsey, 1998 (Alaska Volcano Observatory, U.S. Geological Survey).
Volcano Number:311380
Volcano Name:Roundtop
Country:United States
Volcano Type:Stratovolcano
Last Eruption:7600 BCE
Elevation:1871m
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:0
Pop. within 10km:0
Pop. within 30km:10
Pop. within 100km:1079
Latitude:54.8
Longitude:-163.589



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
311380 Roundtop 20107 Confirmed Eruption 5 ? Tephrochronology -7600
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.


Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.


Data from the SESAR Database
Sorry. No data exist for this volcano in the SESAR database.


Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.