硫黄島

Etymology 1
Compound of.

Proper noun

 * 1) Iwo Jima

Etymology 2
Compound of.

Proper noun

 * 1)  Iwo Jima
 * 2)  an island in the Volcano Islands
 * 1)  an island in the Volcano Islands

Usage notes
Previously used interchangably with the reading Iōtō above, the original form of the Volcano island has been mandated for official purposes since 2007.