硫磺岛
The Volcano or Kazan islands lie south of the Bonin Islands. Iwo Jima is the largest of the Volcano Islands. The others are Kita Iwo Jima, Minami Iwo Jima, and Nishinoshima. Iwo Jima and Kita Iwo Jima are inhabited. Nishinoshima is volcanically active.