Sunda Trench Sunda Trench The Sunda Trench, earlier known as and sometimes still indicated as the Java Trench, is an oceanic trench located in the Indian Ocean near Sumatra, formed where the Australian-Capricorn plates subduct under a part of the Eurasian Plate. It is long. Its maximum depth (at 10°19'S, 109°58'E, about 320 km south of Yogyakarta), is the deepest point in the Indian Ocean. The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands, and forms the boundary between Indo-Australian Plate and Eurasian plate (more specifically, Sunda Plate). The trench
HMAS Diamantina (K377) her wartime service. "Diamantina" was recommissioned as an oceanographic survey ship on 22 June 1959. She carried the pennant numbers F377, A266, and GOR266 at various points throughout this period of her career. After successfully completing her first oceanographic survey in July, she embarked on her first oceanographic cruise on 20 August. On 20 September, the ship performed the first survey of the Montebello Islands following the British atomic test, Operation Hurricane. On 22 October, "Diamantina" carried out the first survey of the waters around Christmas Island. "Diamantina"’s most notable achievement during her second commission was the discovery of the