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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 53 mi (86 km) NE
Attu Station 131 mi (211 km) NW
Unalaska 167 mi (269 km) NE
Shemya Station 167 mi (269 km) SW
Anchorage 953 mi (1534 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: June 12, 2014 07:20
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