Sunda Trench an underwater ridge, and much of the trench is at least partially filled with sediments. Mappings after the 2004 Indian Ocean earthquake of the plate boundary showed resemblance to suspension bridge cables, with peaks and sags, indicative of asperity and locked faults, instead of the traditional wedge shape expected. Some of the earliest exploration of the Trench occurred in the late 1950s when Robert Fisher, Research Geologist at the Scripps Institution of Oceanography, investigated the trench as part of a worldwide scientific field exploration of the world's ocean floor and sub-oceanic crustal-structure. Bomb-sounding, echo-train analysis and manometer were some of
Shire of Diamantina Service. On 11 November 1879, the Diamantina Division was established as one of 74 divisions around Queensland under the "Divisional Boards Act 1879" with a population of 1153. In October 1880, part of Diamantina Division was separated to create Gregory Division. On 21 June 1883, the boundaries between Diamantina Division and Bulloo Division were adjusted. With the passage of the Local Authorities Act 1902, Diamantina Division became the Shire of Diamantina on 31 March 1903. The Shire of Diamantina includes the following: Diamantina Shire Council operates public libraries in Bedourie and Birdsville. Shire of Diamantina The Shire of Diamantina is