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Where is it?Deception Island , South Shetland Islands [ -62.953381585 , -60.627783743 ]
What ’s in the photo?A semi - submerged , active volcanic caldera partially covered in blow
Deception Island is a semi-submerged volcanic caldera that provides refuge to sailors exploring the Southern Ocean’s rough seas.
Which satellite took the photo?Landsat 8
When was it taken?March 23 , 2018
This striking orbiter picture indicate off the unique shape of Antarctica ’s " Deception Island " — a semi - submerged , fighting volcanic caldera created by one of the region ’s large recognize extravasation , which now provides a harbor for ship and researchers explore the area around the South Pole .
When you see the caldera’s steep slopes from sea level, it is easy to see why past sailors would have assumed it was a typical barren island.
The horseshoe - form island , which is just about 9 miles ( 14.5 kilometre ) wide , is located in the Southern Ocean around 65 miles ( 105 km ) from mainland Antarctica . It is one of the South Shetland Islands , which sit down in the middle of the Drake Passage — a stretch of water supply commonly sleep with as the " iceberg graveyard , " due to the number of massive ice slabs thatfall asunder as they move through this passage , after breaking off from Antarctic ice tabloid .
Deception Island gets its challenging name because , from ocean point , it looks like a individual self-coloured landmass surrounded on every side by steep cliffs . But if you approach it and discover the narrow 1,600 - foot - wide-eyed ( 500 meters ) opening in the caldera ’s rim , jazz as " Neptune ’s Bellows , " you agnise that it hold up a monumental hidden lagoon .
explorer first find the secret passage in 1820 . Before then , many sailors would have likely passed by not know that its Department of the Interior , know as Port Foster , is an excellent refuge for sailor to wait out monumental storms that often hit the Southern Ocean .
Tourists visit Deception Island on cruise ships to enjoy the warm volcanic mud baths dotted along its black sand beaches.
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The strange landmass was leave behind after a major volcanic eruption around 4,000 age ago , which likely launched between 7 and 14 cubic mil ( 30 and 60 three-dimensional km ) of ash tree and magma into the sky — the combining weight of between 120 million and 240 million Olympic swimming pools . Experts believe this was the big eruption in Antarctica for at least the last 12,000 years , according toNASA ’s Earth Observatory .
The island is still volcanically combat-ready and has host at least 20 small eruption since the end of the 19th one C . However , it has not burst since 1970 and has been silent since 2015 , when the last seismic activity was recorded on the island , allot to the Smithsonian Institute’sGlobal Volcanism Program . There is only one other combat-ready volcano in Antarctica — Mount Erebus on Ross Island .
Today , Port Foster is home to two permanent research Stations of the Cross run by Argentina and Spain , according to theBritish Antarctic Survey . A third station , belong to Chile , was also settle on the island but was destroyed during the 1970 eruption .
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There are also between 50,000 and 100,000 breeding pairs of chinstrap penguins ( Pygoscelis antarcticus ) that call the island habitation , alongside several species of seal and seafowl , fit in to theBBC .
Deception Island is also visited by M of tourists every year who journey to the removed island on sail ships and come up ashore to delight volcanic springs along Port Foster ’s beaches .
