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Rare lava lake discovered on a remote South Atlantic volcano



Scientists have used satellite imagery to detect an extremely rare "persistent lava lake" on a remote sub-antarctic island in the South Atlantic.

Researchers from the British Antarctic Survey and University College London studied satellite data to identify the unusual feature on Mount Michael volcano on uninhabited Saunders Island.

The island is one of the South Sandwich Islands, a British overseas territory and one of the remotest areas in the world.

The British Antarctic Survey explains this while she is there About 1,500 land volcanoes on Earth, only a handful of them have bubbling lava pools in their craters. According to scientists, Mount Michael Lavesee is only the eighth in the world to be identified.

A "geothermal anomaly" was discovered in 2001

in low-resolution satellite imagery, which necessitated further research. A study of higher-resolution satellite data collected between 2003 and 2018 combined with advanced processing techniques found the lava lake.

  False-color Landsat 8 satellite image of Saunders Island and the lava lake in the crater of Mount Michael volcano. The picture was taken on January 31, 2018. The adjacent map shows the location of Saunders Island in the South Atlantic.
Satellite image of Landsat 8 in the wrong color of Saunders Island and the lava lake in the crater of the volcano Mount Michael. The picture was taken on January 31, 2018. The map shows the location of Saunders Island in the South Atlantic. USGS / NASA / British Antarctic Survey

the British Overseas Territory, "said Alex Burton-Johnson of the British Antarctic Survey in the statement.

Features and, finally, it helped us develop techniques for monitoring volcanoes from space.

An article about the research was published in the Journal of Volcanology and Geothermal Research.

The study's lead author, Danielle Gray of University College London, said Mount Michael's remote location made invaluable satellite data.

"It's extremely difficult to access, and without high-resolution satellite imagery, it would have been very chaotic to learn more about this amazing geological feature," she said in the statement.

The Smithsonian notes that eruptive activities at Mount Michael were recorded only in the early 19th century. The last confirmed outbreak of the remote volcano was between August and October 2015, he adds, with "temporary activity" until September 2018.


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