Bobrof


Facts


  • Official Name: Bobrof Volcano
  • Seismically Monitored: No
  • Color Code: UNASSIGNED
  • Alert Level: UNASSIGNED
  • Elevation: 738m (2421ft)
  • Latitude: 51.9072
  • Longitude: -177.4409
  • Smithsonian VNum: 311100
  • Pronunciation:
  • Nearby Towns:
    • Adak 35 mi (56 km) SE
    • Atka 139 mi (224 km) NE
    • Shemya Station 361 mi (581 km) NW
    • Nikolski 368 mi (592 km) NE
    • Attu Station 399 mi (642 km) NW

    Distance from Anchorage: 1216 mi (1958 km)

Description

From Wood and Kienle (1990) [1] : "Andesitic pyroclastic flows sampled at a seismic station (Adak network) are indicative of explosive eruptions; lavas at the same site indicate that more quiescent extrusive activity also occurred. Texturally, the rocks resemble those of Moffet volcano 50 km to the east. The geology of this small island and the timing of its volcanism are unknown."

Name Origin

Bobrof Volcano, comprising Bobrof Island, bears the name of the island. The name "Bobrof Island" was reported in 1790 by Commodore Joseph Billings. Captain Tebenkov (1852) published the name "O[strov] Bobrovoy Vilga" or "Sea Otter Vilga Island." (Orth, 1971). Bergsland (1994) reports the Unangam Tunuu name of Bobrof Island as "Wal─Ła", meaning "the one on this side (tribal boundary)."


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.

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