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Herbert Island description and information


Official Name: Herbert Island
Type:Stratovolcano with caldera and linear ridge
Most Recent Activity:
Seismically Monitored: No
Elevation: 4232 ft (1290 m)
Latitude: 52.741° N
Longitude:170.113° W
CAVW Number:311220
Pronunciation: Sound file
Nearby towns:Nikolski 54 mi (86 km) NE
Unalaska 167 mi (269 km) NE
Atka 176 mi (283 km) SW
Akutan 203 mi (327 km) NE
Anchorage 954 mi (1535 km) NE
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)."
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.

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Page modified: September 29, 2020 12:19
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