Heard Island and McDonald Islands (HIMI) are uninhabited, barren islands located in the Southern Ocean at , about two-thirds of the way from Madagascar to Antarctica. They have been part of Australia since 1947, and contain the only two active volcanoes in Australian territory, one of which, Mawson Peak, is the highest Australian mountain. The group's size is 372 km² in area.
The other active volcano in Australian territory is on McDonald Island: after being dormant for 75,000 years, it erupted in 1992 and has erupted again several times since, its most recent eruption being on 10 August 2005.
More on [ Heard Island and McDonald Islands ]

Global Volcanism Program - Comprehensive information about the volcanoes on these islands.
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