Mount Michael | |
---|---|
Highest point | |
Elevation | 843 m (2,766 ft) |
Prominence | 843 m (2,766 ft) |
Coordinates | 57°48′13″S26°28′52″W / 57.80361°S 26.48111°W |
Geography | |
Location | Saunders Island, South Sandwich Islands |
Geology | |
Mountain type | Stratovolcano |
Last eruption | 2023 |
Mount Michael is an active volcano with a height of 843 m. It is located on Saunders Island in the South Sandwich Islands, a British Overseas Territory in the southern Atlantic Ocean. It is one of the few volcanoes in an overseas territory of the United Kingdom. The volcano was discovered by a British expedition under James Cook in 1775, but was presumably first charted in 1820 by a Russian expedition under Fabian Gottlieb von Bellingshausen. It was recharted in 1930 by DI personnel under Commander W.M. Carey of the Royal Navy, who was captain of the Discovery II at the time of the survey.
In 2019, it was discovered that Mount Michael had a persistent lava lake, a rare phenomenon which is known to occur at only eight volcanoes in the world. [1] [2] In November 2022, an expedition from University College London led by geologist Emma Nicholson reached the summit of the volcano and was able to confirm the existence of the lava lake. [3]
South Georgia and the South Sandwich Islands (SGSSI) is a British Overseas Territory in the southern Atlantic Ocean. It is a remote and inhospitable collection of islands, consisting of South Georgia and a chain of smaller islands known as the South Sandwich Islands. South Georgia is 165 kilometres (103 mi) long and 35 kilometres (22 mi) wide and is by far the largest island in the territory. The South Sandwich Islands lie about 700 kilometres (430 mi) southeast of South Georgia. The territory's total land area is 3,903 km2 (1,507 sq mi). The Falkland Islands are about 1,300 kilometres (810 mi) west from its nearest point.
The South Sandwich Islands are a chain of uninhabited volcanic islands in the South Atlantic Ocean. They are administered as part of the British Overseas Territory of South Georgia and the South Sandwich Islands. The chain lies in the sub-Antarctic region, about 700 kilometres (430 mi) southeast of South Georgia and 1,700 kilometres (1,100 mi) northeast from the tip of the Antarctic Peninsula.
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Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad depression. The term is used to describe both lava lakes that are wholly or partly molten and those that are solidified.
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Events from the year 2019 in Antarctica.
Saunders Island is a crescent-shaped island lying between Candlemas Island and Montagu Island in the South Sandwich Islands, a British Overseas Territory in the southern Atlantic Ocean.
The area is often cloudy, and a seemingly constant volcanic plume conceals the lake most of the time. Fortunately, the team collected enough shots of the lake from 2003 to 2018 that clearly showed a crater floor containing a superheated lake 295 to 705 feet across. The lava is also 1,812 to 2,334 degrees Fahrenheit, with the higher end of that range about as hot as lava on Earth seems to get.
This article incorporates public domain material from "Mount Michael". Geographic Names Information System . United States Geological Survey.