Alaskan Peninsula and Aleutians Region: Bogoslof

In the evening, the ship anchored off Bogoslof, a tiny but well-known island with a dramatic history of volcanic destruction and reestablishment. Rising only a few hundred feet out of the ocean, Bogoslof is actually a 6000 foot volcano. The earliest recorded eruption took place in 1796. In 1899, one eruption had reportedly scalded and killed many sea lions.


The upper figure is andesite, compact lava collected at the east base of the Bogoslof Volcano, and drawn in natural light. The image is magnified 28 times. The lower specimen is liparite, collected on St. Lawrence Island.