Photo of this volcano
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 64.02°N
  • 21.17°W

  • 497 m
    1630 ft

  • 371801
  • Latitude
  • Longitude

  • Summit

  • Volcano

The Global Volcanism Program has no activity reports for Grensdalur.

The Global Volcanism Program has no Weekly Reports available for Grensdalur.

The Global Volcanism Program has no Bulletin Reports available for Grensdalur.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Eruptive History

The Global Volcanism Program is not aware of any Holocene eruptions from Grensdalur. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Grensdalur page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Grensdalur.

Emission History

There is no Emissions History data available for Grensdalur.

Photo Gallery

Steam plumes, newly formed after a May 2008 earthquake, rise from the Reykir ("smokes" in Icelandic) geothermal area, with the town of Hveragerdi in the background. The Hveragerdi geothermal field lies within the small Grensdalur volcanic system. Grensdalur is the oldest of three volcanic systems in the Hengill area and was last active during the Pleistocene. The Hveragerdi geothermal area include fumaroles, hot springs and pools, mud pots, and geysers, and provides heat to the town of Hveragerdi.

Photo coutesy of the University of Iceland Hvergerdi Research Station, 2008.
See title for photo information.

Smithsonian Sample Collections Database

There are no samples for Grensdalur in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

Affiliated Sites