Herbert description and statistics

Type:	Stratovolcano with caldera and linear ridge
Seismically Monitored:	No
Distance:	948 mi (1526 km) from Anchorage
Elevation:	4232 ft (1290 m)
Latitude:	52.741° N
Longitude:	170.113° W
Quadrangle:	Amukta
CAVW Number:	1101-22-
Sample Image:	More Herbert images ...
Location Map:
Pronunciation:	Sound file
Synonyms:	Herbert Island Chegulak island Chuginak island Chuguliak island Tchagulak island Tchegoulak island Ishugid island Ullyagin island Ulyaga island

From Wood and Kienle (1990): "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)."