Speakers Bank

Speakers Bank Location of Speakers Bank in the Indian Ocean

Speakers Bank is a large coral atoll structure in the Northwestern part of the Chagos Archipelago. It is the northernmost feature of the archipelago, located at 04°55′S 72°20′E / 4.917°S 72.333°E / -4.917; 72.333 (Speakers Bank)Coordinates: 04°55′S 72°20′E / 4.917°S 72.333°E / -4.917; 72.333 (Speakers Bank), 22:km Northwest of Blenheim Reef and is 44:km Northeast-Southwest, and 24:km wide. The total area is 582 km2, most of which is water. Most of the rim of the reef is between 5.5 and 14.5 metres below water. In the south, near the southwest edge, there are some coral heads at 05°04'S, 072°16'E, 0.5 metres of which are dry during low tide, and over which the sea breaks heavily during the southeast trade winds. In the Northeast, at 04°47'S, 072°26'E, there are a number of drying cays, the biggest of which, Big Speaker Reef, just reaches the high water mark. The land area is negligible.

Speakers Bank was surveyed in 1856 by British captain J. Speaker on HMS Wallerup. It is the site of many wrecks, also from prior times.


  1. ^ Geosociety
  2. ^ British Admiralty nautical chart 11000030 - 3 Chagos Archipelago, Scale 1:360 000

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