 In 1987 lava filled in "Queen's Bath", a large, L-shaped, freshwater pool in the Kalapana area.Another 875 acres were added between May to July, 2018 by the 2018 lower Puna eruption.Some geologists count seven volcanoes as building the island, which include the submarine volcanoes Māhukona and Lōʻihi as parts of the base of the island.