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Askja volcano

Updated: 2 mar. 2024 20:53 GMT -
Stratovolcano 1516 m (4,974 ft)
Central Iceland, 65.03°N / -16.75°W
Current status: normal or dormant (1 out of 5)
Last update: 5 ott 2023 (uplift slowed down)

Askja is a large basaltic central volcano that forms the Dyngjufjöll massif. It is truncated by three overlapping calderas, the largest of which is 8 km wide and may have been produced primarily from subglacial ring-fracture eruptions rather than by subsidence.

Mostra la mappa interattiva
Typical eruption style: explosive + effusive
Eruzioni del vulcano Askja: 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961

Latest nearby earthquakes

Data / oraMag. / Prof.Distanza/Ubicazione
26 feb 05:48 (universal)
26 feb 05:48 GMT

5.9 km
27 km a nord est 6.4 Km S of Herðubreiðarlindir Info
domenica, 25 febbraio 2024 GMT (1 sismo)
25 feb 11:06 (universal)
25 feb 11:06 GMT

2.7 km
0.7 km a sud-est 6.7 Km WSW of Dreki
domenica, 18 febbraio 2024 GMT (1 sismo)
18 feb 16:17 (universal)
18 feb 16:17 GMT

6.6 km
27 km a nord est 2.3 Km NE of Herðubreið Info
sabato, 17 febbraio 2024 GMT (1 sismo)
17 feb 22:31 (universal)
17 feb 22:31 GMT

6.4 km
23 km a nord est 2.4 Km SSW of Herðubreið Info
venerdì, 1 marzo 2024 GMT (1 sismo)
1 mar 09:11 (universal)
1 mar 09:11 GMT

4.4 km
22 km a nord est 3.5 Km W of Herðubreið Info
lunedì, 26 febbraio 2024 GMT (1 sismo)
26 feb 06:55 (universal)
26 feb 06:55 GMT

1.1 km
0.9 km a nord ovest 7.5 Km W of Dreki Info


A major rhyolitic explosive eruption from Dyngjufjöll about 10,000 years ago was in part associated with the formation of Askja caldera. Many postglacial eruptions also occurred along the ring-fracture. A major explosive eruption on the SE caldera margin in 1875 was one of Iceland's largest during historical time. It resulted in the formation of a smaller 4.5-km-wide caldera, now filled by Öskjuvatn lake, that truncates the rim of the larger central caldera. The 100-km-long Askja fissure swarm, which includes the Sveinagja graben, is also related to the Askja volcanic system, as are several small shield volcanoes such as Kollatadyngja. Twentieth-century eruptions at Askja have produced lava flows from vents located mostly near Öskjuvatn lake.

Source: GVP, Smithsonian Institution

Askja Photos

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Thu, 5 Oct 2023, 05:17

Askja volcano (Central Iceland): uplift slowed down

The plot shows the  cGNSS data from the station KASC located within Askja caldera. The time series shows the trend of the deformation since November 2022 in the North, East and Up components, and the green dot shows the latest measurement acquired (image: IMO)
The latest deformation data (cGNSS) revealed a subsidence of the edifice since early August. ... Read all
Wed, 23 Aug 2023, 17:56

Askja volcano (Central Iceland): field survey concluded no significant changes in geothermal and ground deformation activity

GPS measurements during the recent field research (image: Melissa Pfeffer/IMO)
The Icelandic Meteorological Office's (IMO) field research on the volcano took place last week. ... Read all
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