Volcano Islands or central mountain) on Iwo Jima; and two settlements on Kita Iwo Jima: Ishino-mura ("Ishino village"; Ishino is a surname) and Nishi-mura ("West village"). The municipal administration office was located in Higashi until 1940, when the municipality was integrated into the administration of Ogasawara, Tokyo. Iwo Jima was the site of the Battle of Iwo Jima in World War II, and the island group came under the United States administration. The Volcano Islands were returned to Japanese administration in 1968. Volcano Islands The or are a group of three Japanese islands south of the Bonin Islands that belong to the
Masaya Volcano Masaya Volcano Masaya is a caldera located in Masaya, Nicaragua, 20 km south of the capital Managua. It is Nicaragua's first and largest national park, and one of 78 protected areas of Nicaragua. The complex volcano is composed of a nested set of calderas and craters, the largest of which is Las Sierras shield volcano and caldera. Within this caldera lies a sub-vent, which is Masaya Volcano "sensu stricto". The vent is a shield type composing of basaltic lavas and tephras and includes a summit crater. This hosts Masaya caldera, formed 2,500 years ago by an 8-km³ basaltic ignimbrite eruption.