Roundtop
Legend
✕
 | Red (Warning) |
 | Orange (Watch) |
 | Yellow (Advisory) |
 | Green (Normal) |
| Uninstrumented |
 | Community |
 | Webcam |
 | Instrument |
| Earthquake Magnitude | |
|
0
7+
| |
| Earthquake Age | |
|
Last 2 Hours |
|
Last 2 Days |
|
Last 1 Week |
Facts
- Official Name: Roundtop Mountain
- Seismically Monitored: No
- Color Code: UNASSIGNED
- Alert Level: UNASSIGNED
- Elevation: 1871m (6138ft)
- Latitude: 54.7992
- Longitude: -163.5914
- Smithsonian VNum: 311380
- Pronunciation:
-
Nearby Towns:
- False Pass 8 mi (13 km) NE
- Pauloff Harbor 43 mi (69 km) SE
- Cold Bay 44 mi (70 km) NE
- King Cove 54 mi (87 km) NE
- Belkofski 65 mi (105 km) NE
Distance from Anchorage: 667 mi (1073 km)
Description
From Wood and Kienle (1990) [1] : "Roundtop is an eroded and glaciated stratovolcano, located ~13 km southwest of the village of False Pass. In the 1930's warm springs were found on its slopes. Recent field study indicates the presence of Holocene pyroclastic flows and a group of domes south of Roundtop, as well as a thick silicic pre-Holocene flow."Name Origin
This feature was reported as "Round Top" by the U.S. Coast and Geodetic Survey in 1902, and called "Dome" by J.F. Moser, U.S. Navy, in 1897 (Orth, 1971).
References Cited
[1] Volcanoes of North America: United States and Canada, 1990
Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.Loading Past Activity...
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Before an eruption
Ashfall & Preparedness Information
- Ashfall impacts & preparedness (US Geological Survey)
- Volcanic health hazards & impacts (International Volcanic Health Hazards Network)
- Ash Alert! Pamphlet (AK Division of Homeland Security & Emergency Management)
- Volcanic Ashfall (AK Department of Environmental Conservation, Division of Air Quality)