Abstract
During the present rifting episode in the Krafla fault swarm in North Iceland, large scale horizontal movement of basaltic magma is taking place underground. On 8 September 1977 magma reached the depth range of boreholes in the Námafjail geothermal field. In 20 min 3 ton of magma erupted through an 1,138 m borehole forming a small scoria sheet.
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Larsen, G., Grönvold, K. & Thorarinsson, S. Volcanic eruption through a geothermal borehole at Námafjall, Iceland. Nature 278, 707–710 (1979). https://doi.org/10.1038/278707a0
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DOI: https://doi.org/10.1038/278707a0
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