It was named Stepovakho Bay or Stepof's Bay by the United States Coast and Geodetic Survey in 1888 for Stepanof, a Russian captain.

[1] Stepovak Bay is framed by the Stepovak Bay group of volcanoes, a chain of 5 cinder cone volcanoes in the Aleutian Arc.

Mount Kupreanof and Stepovak Bay 2 and 4 erupted within the last 10,000 years, while Stepovak Bay 1 and 3 erupted before this, sometime in the Late Pleistocene.

[3] Mount Kupreanof's most recent eruption was possibly in March 1987.

This article about a location in the Aleutians East Borough, Alaska is a stub.