Herbert
Facts
- Official Name: Herbert Island
- Seismically Monitored: No
- Color Code: UNASSIGNED
- Alert Level: UNASSIGNED
- Elevation: 1290m (4232ft)
- Latitude: 52.741
- Longitude: -170.113
- Smithsonian VNum: 311220
- Pronunciation:
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Nearby Towns:
- Nikolski 53.7 mi (86.5 km) ENE
- Unalaska 167.1 mi (268.9 km) ENE
- Atka 176.1 mi (283.4 km) W
- Akutan 202.9 mi (326.5 km) ENE
- Saint George 267.6 mi (430.7 km) N
Distance from Anchorage: 953.7 mi (1534.8 km)
Description
From Wood and Kienle (1990) [1] : "Herbert is a classic stratovolcano with a 2.1-km-wide caldera, which the topographic map indicates is breached to the northwest. Radar images do not show the breach. No geologic studies have been published on this volcano. A grab sample from the tip of the island's southwest point is an andesite (59% SiO2, with 0.82% K2O)."Name Origin
Herbert Island was named by the U.S. Navy Hydrographic Office in 1894 for Hilary Abner Herbert, 1834-1919, Secretary of the Navy (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)
During and After an Eruption
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![Instrument data]()