# Bogoslof Island

- **Country:** United States
- **Coordinates:** 53.927222, -168.034444
- **Url:** http://www.avo.alaska.edu/volcanoes/volcinfo.php?volcname=Bogoslof
- **Type:** Submarine volcano
- **Work:** Alaska Volcano Observatory
- **Title:** Bogoslof Description and Statistics
- **Embedded:** {{designation list | embed = yes
- **Location:** Aleutian Islands, Alaska
- **Formed By:** Subduction zone volcanism
- **Map Width:** 240
- **Publisher:** United States Geological Survey
- **Designation1:** NNL
- **Elevation Ft:** 492
- **Volcanic Arc:** Aleutian Arc
- **Elevation Ref:** {{cite web
- **Last Eruption:** December 20, 2016–August 30, 2017
- **Label Position:** none
- **Designation1 Date:** 1967

Bogoslof Island or Agasagook Island is the summit of a submarine stratovolcano at the south edge of the Bering Sea, northwest of Unalaska Island of the Aleutian Islands chain. It has a land area of and is uninhabited. It is long and wide, with a peak elevation of . The stratovolcano rises about from the seabed, but the summit is the only part that projects above sea level. About northwest of Bogoslof, a small volcanic dome emerged in 1883 from the same stratovolcano and has become a stack rock formation known as Fire Island. On the southwest side of Bogoslof, another dome erupted in 1796; it is now called Castle Rock. Other eruptions have occurred in 1796–1804, 1806–1823, 1883–1895, 1906, 1907, 1909–1910, 1926–1928, 1992, and 2016–2017. The island is a breeding site for seabirds, seals, and sea lions. An estimated 90,000 tufted puffins, guillemots, red-legged kittiwakes and gulls nest here.

![Photo of Bogoslof Island](https://upload.wikimedia.org/wikipedia/commons/3/39/BogoslofIsland.jpg)

**Source:** https://en.wikipedia.org/wiki/Bogoslof_Island (Wikipedia, CC BY-SA)