They are located approximately 250 kilometers (160 miles) southeast of Chuuk Lagoon.
[1] The Mortlock Islands are made up of the islands Ettal, Namoluk, Ta, Nama, Oneop, Losap, Moch, Picemwar, Satawan, Lukunor (Likinioch), and Kuttu (KuKuttu).
The Namoi Islands have thought to have been initially settled eight to nine hundred years ago by natives moving eastward from the Chuuk Lagoon.
[4][5] During the Age of Exploration the islands were sighted by the Spanish expedition of Álvaro de Saavedra in 1528.
[6] Centuries later, Captain James Mortlock rediscovered two sets of islands when he was sailing from Port Jackson to Whampoa in Young William on the 19th and 27 November 1795.