Volcano Islands uninhabited. The first recorded sighting by Europeans was in October 1543 by Spanish navigator Bernardo de la Torre on board of carrack "San Juan de Letrán" when trying to return from Sarangani to New Spain. Iwo Jima was charted as Sufre, the old Spanish term for sulphur. The islands were uninhabited until 1889, when the two northern islands were settled by Japanese settlers from the Izu Islands. They were annexed by Japan in 1891. The population was about 1,100 in 1939, distributed among five settlements: Higashi, Minami, Nishi, Kita and Motoyama (meaning "East", "South", "West", "North" and "Mountain of Origin",
Gareloi Volcano tephra, creates respiratory complexities and irritation of the eye. Pyroclastic flows from an eruption would destroy much wildlife about the volcano. Gareloi has historically produced several pyroclastic flows, which can travel extremely fast. Future flows at Gareloi Volcano could travel off the island into the Pacific Ocean and, if large enough, could fall into the ocean and generate tsunamis, though unlikely. Gareloi Volcano The Gareloi Volcano is a stratovolcano in the Aleutian Islands of Alaska, United States, about from Anchorage. Gareloi is located on Gareloi Island, and comprises most of its land mass. The island also has two small glaciers