The Semichi Islands are located southeast of which island that became uninhabited in 2010?
Semichi Islands: The Semichi Islands (Samiyan in Aleut) are a cluster of small islands in the Near Islands group of the Aleutian Islands, Alaska. Semichi Islands:  They are located southeast of Attu Island and northeast of Agattu Island, near . Attu Island:  The island became uninhabited in 2010.
Attu Island