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Krýsuvík-Trölladyngja

Photo of this volcano
  • Iceland
  • Iceland Neovolcanic Rift Zone
  • Cluster | Crater rows
  • 1340 CE
  • Country
  • Volcanic Province
  • Landform | Volc Type
  • Last Known Eruption
  • 63.917°N
  • 22.067°W

  • 360 m
    1181 ft

  • 371030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

Most Recent Weekly Report: 14 September-20 September 2022 Citation IconCite this Report

IMO stated that the Fagradalsfjall and Krýsuvík-Trölladyngja volcanic systems have been designated as two separate systems based on previous scientific research combined with data collected and analyzed from the two recent eruptions (2021 and 2022). On 15 September the Aviation Color Code for Krýsuvík-Trölladyngja was changed to Green, reflecting that the activity was at known background levels.

Source: Icelandic Meteorological Office (IMO)

Weekly Reports - Index


2022: September


14 September-20 September 2022 Citation IconCite this Report

IMO stated that the Fagradalsfjall and Krýsuvík-Trölladyngja volcanic systems have been designated as two separate systems based on previous scientific research combined with data collected and analyzed from the two recent eruptions (2021 and 2022). On 15 September the Aviation Color Code for Krýsuvík-Trölladyngja was changed to Green, reflecting that the activity was at known background levels.

Source: Icelandic Meteorological Office (IMO)


The Global Volcanism Program has no Bulletin Reports available for Krýsuvík-Trölladyngja.

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

There is data available for 11 confirmed Holocene eruptive periods.

1340 (?) Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode Tradarfjöll
1340 (?) - Unknown Evidence from Correlation: Tephrochronology

List of 5 Events for Episode 1 at Tradarfjöll

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Cinder Cone
   - - - -    - - - - Tephra
1340
(?)
   - - - - VEI (Explosivity Index)

1325 (?) Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode Elborg vid Trolladyngju
1325 (?) - Unknown Evidence from Correlation: Tephrochronology

List of 4 Events for Episode 1 at Elborg vid Trolladyngju

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Tephra
1325
(?)
   - - - - VEI (Explosivity Index)

1188 Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode Mavahlidargigir
1188 - Unknown Evidence from Observations: Reported

List of 3 Events for Episode 1 at Mavahlidargigir

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
1188    - - - - VEI (Explosivity Index)

1151 Confirmed Eruption Max VEI: 1

Episode 1 | Eruption Episode Ogmundargigar and other vents
1151 - Unknown Evidence from Observations: Reported

List of 6 Events for Episode 1 at Ogmundargigar and other vents

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Lava flow Entered water.
   - - - -    - - - - Scoria
   - - - -    - - - - Property Damage
1151    - - - - VEI (Explosivity Index)

1075 ± 75 years Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Gvendarselsgigar
1075 ± 75 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Gvendarselsgigar

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Lava flow
1075 ± 75 years    - - - - VEI (Explosivity Index)

0900 (?) Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Melholl, Afstapahraun
0900 (?) - Unknown Evidence from Correlation: Tephrochronology

List of 6 Events for Episode 1 at Melholl, Afstapahraun

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Lava flow Entered water.
   - - - -    - - - - Cinder Cone
   - - - -    - - - - Ash
0900
(?)
   - - - - VEI (Explosivity Index)

0190 BCE ± 75 years Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Obrinnisholar
0190 BCE ± 75 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 5 Events for Episode 1 at Obrinnisholar

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Cinder Cone
   - - - -    - - - - Tephra
0190 BCE ± 75 years    - - - - VEI (Explosivity Index)

1060 BCE ± 75 years Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Sandfellskofagigir
1060 BCE ± 75 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 2 Events for Episode 1 at Sandfellskofagigir

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Lava flow
1060 BCE ± 75 years    - - - - VEI (Explosivity Index)

5290 BCE ± 150 years Confirmed Eruption Max VEI: 2

Episode 1 | Eruption Episode Burfell
5290 BCE ± 150 years - Unknown Evidence from Isotopic: 14C (uncalibrated)

List of 6 Events for Episode 1 at Burfell

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Explosion
   - - - -    - - - - Lava flow
   - - - -    - - - - Lava flow Entered water.
   - - - -    - - - - Cinder Cone
   - - - -    - - - - Scoria
5290 BCE ± 150 years    - - - - VEI (Explosivity Index)

6000 BCE (?) Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Hrútagjár
6000 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 4 Events for Episode 1 at Hrútagjár

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Lava fountains
   - - - -    - - - - Lava flow
   - - - -    - - - - Lava lake
6000 BCE
(?)
   - - - - VEI (Explosivity Index)

8500 BCE (?) Confirmed Eruption Max VEI: 0

Episode 1 | Eruption Episode Hagafell
8500 BCE (?) - Unknown Evidence from Correlation: Tephrochronology

List of 4 Events for Episode 1 at Hagafell

Start Date End Date Event Type Event Remarks
   - - - -    - - - - Lava fountains
   - - - -    - - - - Lava flow
   - - - -    - - - - Lava lake
8500 BCE
(?)
   - - - - VEI (Explosivity Index)
Deformation History

There is data available for 3 deformation periods. Expand each entry for additional details.


Deformation during 2010 - 2011 [Uplift; Observed by GPS, InSAR]

Start Date: 2010 Stop Date: 2011 Direction: Uplift Method: GPS, InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Reference List: Michalczewska et al. 2012*.

Full References:

Michalczewska, K., S. Hreinsdottir, T. Arnadottir, S. Hjaltadottir, T. Agustsdottir, M. T. Gudmundsson, H. Geirsson, F. Sigmundsson, G. Gudmundsson, 2012. Inflation and deflation episodes in the Krisuvik volcanic system. (abstract V33A-2843), Fall AGU.

Deformation during 2009 - 2009 [Uplift; Observed by GPS, InSAR]

Start Date: 2009 Stop Date: 2009 Direction: Uplift Method: GPS, InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Reference List: Michalczewska et al. 2012*.

Full References:

Michalczewska, K., S. Hreinsdottir, T. Arnadottir, S. Hjaltadottir, T. Agustsdottir, M. T. Gudmundsson, H. Geirsson, F. Sigmundsson, G. Gudmundsson, 2012. Inflation and deflation episodes in the Krisuvik volcanic system. (abstract V33A-2843), Fall AGU.

Deformation during 2009 - 2010 [Subsidence; Observed by GPS, InSAR]

Start Date: 2009 Stop Date: 2010 Direction: Subsidence Method: GPS, InSAR
Magnitude: Unknown Spatial Extent: Unknown Latitude: Unknown Longitude: Unknown

Reference List: Michalczewska et al. 2012*.

Full References:

Michalczewska, K., S. Hreinsdottir, T. Arnadottir, S. Hjaltadottir, T. Agustsdottir, M. T. Gudmundsson, H. Geirsson, F. Sigmundsson, G. Gudmundsson, 2012. Inflation and deflation episodes in the Krisuvik volcanic system. (abstract V33A-2843), Fall AGU.

Emission History

There is no Emissions History data available for Krýsuvík-Trölladyngja.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

The following 2 samples associated with this volcano can be found in the Smithsonian's NMNH Department of Mineral Sciences collections, and may be availble for research (contact the Rock and Ore Collections Manager). Catalog number links will open a window with more information.

Catalog Number Sample Description Lava Source Collection Date
NMNH 115620 Tholeiite -- --
NMNH 115637 Olivine Tholeiite HRUTAGJARDYNGJA --
External Sites