Loki-Fögrufjöll
Volcano in Iceland
From Wikipedia, the free encyclopedia
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.
| Loki-Fögrufjöll | |
|---|---|
| Hamarinn | |
 Loki-Fögrufjöll Location within Iceland | |
 Legend
| |
| 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[1] |
| Geology | |
| Subglacial volcano | |
| Last eruption | 1910 |
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]
See also
Notes
- This eruption is usually assigned to the Grímsvötn system.[5] Seismic studies under the ice cover suggest the eruption was at intersection of three areas of recent seismic activity; Lokahryggur, Bárðarbunga and Grímsvötn.[4]: Figure 6. There was at the time of the 1996 eruption minimal seismic activity in the Lokahryggur region.[6]