Gilbert and Ellice Islands until 1977. A protectorate was generally established over this area (but not over these islands) by the Pacific Islanders Protection Act of 1857 and then in 1877 for the Western Pacific Territories. The sixteen islands of the Gilberts were declared a British Protectorate by Captain Davis R.N., of between 27 May and 17 June 1892. The Ellice Islands were declared a British Protectorate by Captain Gibson R.N., of , between 9 and 16 October of the same year. The British Western Pacific Territories (BWPT) were administered by a High Commissioner resident in Fiji. A Resident Commissioner, Charles Swayne, was appointed
Geology of the Pacific Ocean existed. In a remote region of the central Pacific Ocean, at the southeastern section of the Gilbert Islands, a major swarm of intraplate earthquakes occurred between December 1981 and March 1983, with no prior seismicity having been reported in this region previously. Another swarm was detected on the Queen Charlotte Islands fracture zone in August–September 1967. The Pacific Ocean contains several long seamount chains, formed by hotspot volcanism. These include the Hawaiian–Emperor seamount chain, the Tasmantid Seamount Chain, the Lord Howe Seamount Chain and the Louisville Ridge. Geology of the Pacific Ocean The Pacific Ocean evolved in the Mesozoic from