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Latest news:

Mon, 11 Nov 2019, 07:35
The ongoing earthquake swarm at the Askja caldera in Iceland
An swarm of earthquakes is occurring near the Askja caldera, in an area approx. 10 km ENE from the rim and at depths around 5 km. ... read all
Mon, 12 Oct 2015, 09:21
Recent earthquakes under Herdubreid volcano
A shallow earthquake swarm has been occurring 25 km NE of the Aksja caldera since Thursday. read all
 

Askja volcano

Stratovolcano 1516 m (4,974 ft)
Central Iceland, 65.03°N / -16.75°W
Current status: normal or dormant (1 out of 5)
Askja webcams / live data | Reports
Askja volcano books | Tours
Last update: 1 Mar 2020 (earthquake swarm ENE of the caldera)
Typical eruption style: explosive + effusive
Askja volcano eruptions: 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961
TimeMag. / DepthDistanceLocation
Tue, 20 Oct 2020 (UTC)
20 Oct 10:08 pm (GMT +0) (20 Oct 22:08:41 UTC)M 1.4 / 4.4 km5 km3.2 Km SW of Dreki, Iceland
Tue, 20 Oct 16:15 UTCM 0.7 / 1.6 km11 km16.4 Km SW of Dreki, Iceland
20 Oct 8:29 am (GMT +0) (20 Oct 08:29:46 UTC)M 0.4 / 3.1 km3 km4.0 Km WSW of Dreki, Iceland
Tue, 20 Oct 00:32 UTCM 0.1 / 5.3 km3 km4.3 Km W of Dreki, Iceland
Sun, 18 Oct 2020 (UTC)
Sun, 18 Oct 22:02 UTCM 0.5 / 3.6 km4 km3.5 Km WSW of Dreki, Iceland
View all recent quakes
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.

Background:

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.

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Source: GVP, Smithsonian Institution

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