Tjörnes Fracture Zone

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 66.3°N
  • 17.1°W

  • Unknown

  • 373100
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Tjörnes Fracture Zone.

 Available Weekly Reports

There are no Weekly Reports available for Tjörnes Fracture Zone.

Summary of eruption dates and Volcanic Explosivity Indices (VEI).

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
1867 Dec 1868 Jan Confirmed   Historical Observations Immediately north of Manareyjar Island

The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior..

Riedel C, Petersen T, Theilen F, Neben S, 2003. High b-values in the leaky segment of the Tjornes Fracture Zone north of Iceland: are they evidence for shallow magmatic heat sources?. J Volc Geotherm Res, 128: 15-29.

Saemundsson K, 1974. Evolution of the axial rifting zone in northern Iceland and the Tjornes Fracture Zone. Geol Soc Amer Bull, 85: 495-504.

Sapper K, 1917. Katalog der Geschichtlichen Vulkanausbruche. Strasbourg: Karl J Trubner, 358 p.

Steinthorsson S, et al., 2002. Catalog of Active Volcanoes of the World - Iceland. Unpublished manuscript.

Thorarinsson S, 1965. Submarine eruptions near Iceland. Natturufraedingurinn, 35: 49-74 (in Icelandic with English summary).

The offshore Tjörnes Fracture Zone is an oblique transform zone that separates the northern volcanic zone of Iceland from the Kolbeinsey Ridge, part of the Mid-Atlantic Ridge north of Iceland. A submarine eruption was reported during 1867-1868 at the SE part of the fissure system off the northern coast of Iceland along the Manareyjar Ridge immediately north of Manareyjar Island.