 The steep slopes can result in massive landslides due to flank collapse, including one which removed most of the northern half of East Molokai.Administratively, the current islands remaining from Maui Nui comprise Maui County (except a tiny part of Molokai, which comprises Kalawao County).Maui Nui was formed in the Pleistocene Epoch (or period of time) which lasted from around 2 million years ago to about 11,000 years ago.