Pacific Island Ecosystems Research Center
Maui Nui or Greater Maui, is a modern geologists' name given to a prehistoric Hawaiian Island built from seven shield volcanoes. Nui means "great/large" in the Hawaiian language. 1.2 million years ago, Maui Nui was 14,600 square kilometres (5,600 sq mi), 50% larger than the present-day island of Hawaii. As the volcanoes subsided and eroded, the saddles between them slowly flooded, forming four separate islands: Maui, Molokai, Lanai and Kahoolawe by about 200,000 years ago. PIERC partnership with Department of Interior includes research at the Haleakala National Park.