Kolbeinsey Ridge

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  • Country
  • Subregion Name
  • Primary Volcano Type
  • Last Known Eruption
  • 66.67°N
  • 18.5°W

  • 5 m
    16 ft

  • 375010
  • Latitude
  • Longitude

  • Summit

  • Volcano

There are no activity reports for Kolbeinsey Ridge.

 Available Weekly Reports

There are no Weekly Reports available for Kolbeinsey Ridge.

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

Start Date Stop Date Eruption Certainty VEI Evidence Activity Area or Unit
[ 1838 Jun 11 (?) ] [ Unknown ] Discredited    
[ 1783 ] [ Unknown ] Discredited    
1755 Sep 18 Unknown Confirmed   Unknown
1372 Unknown Confirmed 2 Historical Observations NW of Grimsey 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.

Berninghausen W H, 1964. A checklist of Icelandic volcanic activity. Bull Seism Soc Amer, 54: 443-450.

Botz R, Winckler G, Bayer R, Schmitt M, Schmidt M, Garbe-Schonberg D, Stoffers P, Kristjansson J K, 1999. Origin of trace gases in submarine hydrothermal vents of the Kolbeinsey Ridge, north Iceland. Earth Planet Sci Lett, 171: 83-93.

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

Lackschewitz K S, Dehn J, Wallrabe-Adams H-J, 1994. Volcaniclastic sediments from mid-oceanic Kolbeinsey Ridge, north of Iceland: evidence for submarine volcanic fragmentation processes. Geology, 22: 975-978.

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, Hjartarson A, 1994. Geology and erosion of Kolbeinsey north of Iceland. In: Vigoson G (ed), {Proc Hornafjorlur Internat Coastal Symp, Reykjavik}, p 443-451.

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 Unpublished manuscript.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).

A submarine eruption was reported in 1372 near the Kolbeinsey Ridge NW of Grimsey Island. Kolbeinsey Island, the only subaerial expression of this portion of the Mid-Atlantic Ridge, is a small, rapidly eroding island that formed during the late-Pleistocene or Holocene. Dredged glass shards indicate submarine eruptive activity during the late-Pleistocene until at least 11,800 radiocarbon years ago. The island was 700 m long in 1616 CE, but had shrunk to 42 m long and 5 m high by 1985 and could be eroded below sea level in the early part of the 21st century. The Kolbeinsey Hydrothermal Field lies south of the island. Thorarinsson (1965) roughly plotted the location of the 1372 eruption at about 66 degrees 40 minutes North. Reidel et al. (2003) note that the location is uncertain, but could lie between the Kolbeinsey Ridge and Hóll Seamount. Other reports of submarine eruptions north of Iceland have an even more uncertain location (1755) or have been discredited (1783 and 1838).