Loki-Fögrufjöll | |
---|---|
Hamarinn | |
Highest point | |
Elevation | 1,573 m (5,161 ft) [1] |
Listing | List of volcanoes in Iceland |
Coordinates | 64°28′41″N 17°49′18″W / 64.478056°N 17.821710°W [1] |
Geology | |
Mountain type | Subglacial volcano |
Last eruption | 1910 |
The Loki-Fögrufjöll (Icelandic pronunciation: [ˈlɔːcɪ-ˈfœɣrʏˌfjœtl̥] volcanic system; [2] also known as Hamarinn [ˈhaːmarɪn] after its central volcano or Lokahryggur [ˈlɔːkaˌr̥ɪkːʏr̥]) is a subglacial volcano under the Vatnajökull glacier.
The subglacial volcano is found within the Bárðarbunga fissure volcanic system, but is outside the caldera of Bárðarbunga itself. [3] Earthquake swarms associated with the volcano are separate in time and place from other swarms in the Bárðarbunga system. [2] The fissure swarm extending south-west towards Torfajökull has not had recent earthquakes or erupted in the Holocene. [2] A geothermally and seismically active ridge called Lokahryggur or the Loki Ridge, [2] extends eastward from Hamarinn under the ice to where in 1996 the Gjálp volcanic fissure erupted between Bárðarbunga and Grímsvötn and produced a large jökulhlaup. [4] [a]
The last confirmed eruption was in 1910 when tephra was erupted, [2] but the system may also have had subglacial eruptions in 1986, 1991, [7] 2006, 2008 [8] and 2011. [9]
Loki-Fögrufjöll | |
---|---|
Hamarinn | |
Highest point | |
Elevation | 1,573 m (5,161 ft) [1] |
Listing | List of volcanoes in Iceland |
Coordinates | 64°28′41″N 17°49′18″W / 64.478056°N 17.821710°W [1] |
Geology | |
Mountain type | Subglacial volcano |
Last eruption | 1910 |
The Loki-Fögrufjöll (Icelandic pronunciation: [ˈlɔːcɪ-ˈfœɣrʏˌfjœtl̥] volcanic system; [2] also known as Hamarinn [ˈhaːmarɪn] after its central volcano or Lokahryggur [ˈlɔːkaˌr̥ɪkːʏr̥]) is a subglacial volcano under the Vatnajökull glacier.
The subglacial volcano is found within the Bárðarbunga fissure volcanic system, but is outside the caldera of Bárðarbunga itself. [3] Earthquake swarms associated with the volcano are separate in time and place from other swarms in the Bárðarbunga system. [2] The fissure swarm extending south-west towards Torfajökull has not had recent earthquakes or erupted in the Holocene. [2] A geothermally and seismically active ridge called Lokahryggur or the Loki Ridge, [2] extends eastward from Hamarinn under the ice to where in 1996 the Gjálp volcanic fissure erupted between Bárðarbunga and Grímsvötn and produced a large jökulhlaup. [4] [a]
The last confirmed eruption was in 1910 when tephra was erupted, [2] but the system may also have had subglacial eruptions in 1986, 1991, [7] 2006, 2008 [8] and 2011. [9]