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Apr 12, 2007 · Tristan da Cunha is an active strato-volcano formed above a magma hot-spot some 400km east of the Mid-Atlantic Ridge. The volcano first erupted 3 million years ago from the 3500m deep ocean floor. Successive eruptions have built a cone 48km wide and 5500m high, with the summit (Queen Mary's Peak at 2,060m above sea level) overlooking a heart ...
Volcanoes. Tristan da Cunha has two volcanoes: Queen Mary's Peak and Edinburgh Peak. Queen Mary's Peak has a height of 2,062 m (6,765 ft) and remains active, with its last eruption reported to have occurred in 1961.
Aug 27, 2011 · Tristan de Cunha is a stratovolcano that forms an island located in the south-central Atlantic Ocean. The volcano has a 300-m-wide summit crater and is composed pyroclastic deposits upon a base of low-angle lava flows.
In 1506 a Portuguese sea-captain called Tristao da Cunha came across a group of six little islands far out in the Atlantic between South Africa and South America. The largest of them, which he named after himself, has a volcano in the middle.
Tristan da Cunha is a 13-km-wide island volcano lying about 500 km E of the crest of the Mid-Atlantic Ridge just south of the latitudes of Buenos Aires and Cape Town. The shield volcano is bounded on most sides by high cliffs.
May 20, 2020 · The six-by-six-mile volcanic island of Tristan da Cunha (the main island of an archipelago bearing the same name) sits in the remote waters of the South Atlantic, roughly equidistant from...
