McDonald Islands (volcano) McDonald Islands (volcano) The McDonald Islands () are the peaks of a volcano in the southern Indian Ocean in the vicinity of Heard Island (). The islands are Australian external territory. Prior to 1992, the volcano had not erupted in the previous 75,000 years. The McDonald Islands volcano comprises three islands: McDonald Island, Flat Island (which later merged with McDonald Island) and Meyer Rock. The islands are mostly composed of phonolitic low-silica pumice, dikes and lava domes, and sit atop a submarine plateau, the Kerguelen plateau. They are located about 75 km from Heard Island. McDonald Island is the largest
Volcano House, Iceland Opal, Obsidian, Rock crystal and Iceland spar. Volcano House offers guidance and information throughout the exhibit. The interior design of the exhibition is meant to look like it's from 1973 which is the year when the volcanic eruption in Heimaey in the Westman Islands occurred. The Volcano House cinema presents two documentaries covering two of the most powerful volcanic eruptions that have occurred in Iceland over the last 40 years - the 1973 eruption in Heimaey on the Westman Islands, and the 2010 eruption of Eyjafjallajökull in South Iceland. The documentaries are exclusively made for Volcano House and can not