The Diamantina Fracture Zone is an area of the south-eastern Indian Ocean seafloor, and has a range of ridges and trenches.[1]
It lies to the south of the mid eastern Indian Ocean features of the Wharton Basin and Perth Basin, and to the south west of the Naturaliste Plateau.
The Diamantina Deep, the zone's deepest location, located about 1 125 km West-South-West of Perth, Western Australia, at 35°S and 104°E. Its shallowest is the 1125 metre point on the Broken Ridge part of the zone which is closer to Ninety East Ridge [2]
The CIA's Physical Map of the World does not list this as the deepest point in the Indian Ocean, but rather lists the Java Trench.[3]