The northern part of administrative South Maalhosmadulhu forms a clearly delimited, roughly triangular, natural atoll called Middle Maalhosmadulhu or 'Fasdūtherē', with a total area of. On its southwest corner stands Kudarikilu Island, the only inhabited one of the Middle Maalhosmadulhu Atoll, with an area of. In addition, there are 10 smaller, uninhabitedislets on the rim of the atoll. The total land area is about. The lagoon becomes narrower towards the west and its averagedepth is. The Atoll is separated from North Maalhosmadulhu by a deep channel and from the southern part of South Maalhosmadulhu by a narrower channel running from east to west.