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Current rifting episode in north Iceland

Nature volume 266, pages 318323 (24 March 1977) | Download Citation

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Abstract

A major rifting episode is now occurring in north Iceland. This started on 20 December 1975, with a basaltic eruption, an exceptionally intense earthquake swarm and movement on an 80-km segment of the plate boundary. Inflation and deflation of the Krafla caldera indicate upwelling of magma and injection into the rift zone. Historical records show that similar episodic rifting occurs in this region every 100–150 yr.

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Author information

Affiliations

  1. National Energy Authority, Laugavegur 116, Reykjavik

    • Axel Björnsson
    •  & Kristján Saemundsson
  2. Science Institute, University of Iceland, Reykjavik

    • Páll Einarsson
    •  & Eysteinn Tryggvason
  3. Nordic Volcanological Institute, University of Iceland, Reykjavik, Iceland

    • Karl Grönvold

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https://doi.org/10.1038/266318a0

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