Base Decepción
Encyclopedia
Base Decepción is an Argentine antarctic
Antarctic
The Antarctic is the region around the Earth's South Pole, opposite the Arctic region around the North Pole. The Antarctic comprises the continent of Antarctica and the ice shelves, waters and island territories in the Southern Ocean situated south of the Antarctic Convergence...

 base located at Deception Island, South Shetland Islands
South Shetland Islands
The South Shetland Islands are a group of Antarctic islands, lying about north of the Antarctic Peninsula, with a total area of . By the Antarctic Treaty of 1959, the Islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for...

.

History

The station was founded on January 25, 1948, and was a year-round station until December 1967 when volcanic eruptions
Types of volcanic eruptions
During a volcanic eruption, lava, tephra , and various gases are expelled from a volcanic vent or fissure. Several types of volcanic eruptions have been distinguished by volcanologists. These are often named after famous volcanoes where that type of behavior has been observed...

 forced the evacuation of the base. Since then it is inhabited only during the summer.

The island suffered severe volcanic eruptions in 1967, 1969 and 1970.

In 1950 a seismograph was installed in the base, and in 1951 it also received ionospheric
Ionosphere
The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere...

equipment. In 1993 a volcano observatory was opened.

External links

Base Decepción at Marambio.aq
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