Southern Peninsula (Iceland)

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File:Sudurnes-Reykjanes.png
Map of the Suðurnes region

Southern Peninsula (Template:Langx, Script error: No such module "IPA".) is an administrative unit and part of Reykjanesskagi (pronounced Script error: No such module "IPA".), or Reykjanes Peninsula, a region in southwest Iceland. It was named after Reykjanes, the southwestern tip of Reykjanesskagi.[1]

The region has a population of 30,933 (2024) and is one of the more densely populated parts of the island.[2] The administrative centre is Keflavík, which had 7,000 residents when it merged with the nearby town of Njarðvík and Hafnir in 1995 to create Reykjanesbær, which is the largest settlement outside the Greater Reykjavík area; in 2018, the region had a population of 17,805.[3] The region is the location of Keflavík International Airport, the major point of entry for Iceland.[4][5] Some fishing towns, such as Grindavík, Njarðvík and Sandgerði, are situated on the peninsula.

The peninsula is marked by active volcanism under its surface and large lava fields, allowing little vegetation. There are numerous hot springs in the southern half of the peninsula, around the Kleifarvatn lake and the Krýsuvík geothermal area.[6] There is a geothermal power station at Svartsengi. Near the power station, a luxury spa and pool area has been installed. Using the hot and mineralized water coming down from the power station; the spa is known as the "Blue Lagoon" (Bláa Lónið).[7]

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A great deal of volcanic unrest was occurring in this part of the Reykjanes Peninsula from 2020 onward, after nearly 800 years of inactivity. After the eruption of the Fagradalsfjall volcano started on March 19, 2021,[9] National Geographic's experts predicted that this "may mark the start of decades of volcanic activity". The eruption was small, leading to a prediction that this volcano was unlikely to threaten "any population centers".[10] In November 2023, a new bout of seismic activity occurred around Grindavík, prompting the town's evacuation and the declaration of a state of emergency over the threat of an imminent volcanic eruption,[11] culminating in the 2023-2024 Sundhnúkur eruptions.

Reykjanes volcanic belt

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The Southern Peninisula contains the south western portion of the Reykjanes volcanic belt, where the continuation of the Mid-Atlantic Ridge and its submarine Reykjanes Ridge with the transitional Eldey volcanic system, rise above sea level. Depending on the author, the Reykjanes volcanic belt has between three and six volcanic systems; see map for six-system on land classification of the Reykjanes, Svartsengi, Fagradalsfjall, Krýsuvík, Brennisteinsfjöll, and Hengill volcanic systems. These are closely spaced en-echelon fissure systems, extending across the Reykjanes Peninsula.[12][13][14][15]). Each volcanic system on the peninsula consists of (volcanic and tectonic) fissures and faults directed mostly NE-SW and may have other features such as lava fields and postglacial basaltic crater rows. Only the Hengill volcanic system, the most eastern system, has an additional central volcano, but this is outside the Southern Peninsula.[16][17] Tephra deposits from offshore explosive Holocene eruptions have been preserved on the Reykjanes Peninsula.[13]

Geothermal Energy

Geothermal energy in the Reykjanes Peninsula is a significant part of Iceland's energy landscape, rooted in the peninsula's unique geological setting as a trans-tensional plate boundary where the Mid-Atlantic Ridge comes onshore. This tectonic environment, characterized by segmented volcanic systems, creates favorable conditions for geothermal activity. Some areas of the Peninsula are home to temperatures of 100 degrees Celsius at 0.5 meters deep.[18]

Gallery

See also

References

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  12. ↑ Thor Thordarson, Armann Hoskuldsson: Iceland. Classic geology of Europe 3. Harpenden 2002, p.48-49, eg.
  13. ↑ a b Script error: No such module "citation/CS1".
  14. ↑ Icelandic Met Office. Aviation colour code. Template:Webarchive Retrieved 17. August 2020.
  15. ↑ Jillian Mary Verbeurgt: A comparative analysis of the magnetic anomalies associated with the geothermal systems on Reykjanes peninsula. Master of Science (M.Sc.) in Sustainable Energy Science. Haraldur Auðunsson, Supervisor. Reykjavík University. September 2019 Template:Webarchive Retrieved 17. August 2020.
  16. ↑ Thor Thordarson, Armann Hoskuldsson: Iceland. Classic geology of Europe 3. Harpenden 2002, p.14 and 63.
  17. ↑ Helgi Páll Jónsson: Eldfjallagarður og jarðminjasvæði á Reykjanesskaga. Jarðvísindadeild Háskóli Íslands 2011. MS ritgerð. Leiðbeinendur Ólafur Ingólfsson. Template:Webarchive Skoðað 17. ágúst 2020.
  18. ↑ Script error: No such module "Citation/CS1".

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External links

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Photography

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