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Random pictures

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: 2 Oct 2018 (earthquake swarms)
Typical eruption style: explosive + effusive
Askja volcano eruptions: 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961
TimeMag. / DepthDistanceLocation
Thu, 15 Nov
Thu, 15 Nov 09:25 UTCM 0.4 / 4.8 km19 km14.6 km E of Kistufell
Thu, 15 Nov 09:16 UTCM 0.8 / 7.3 km22 km3.5 km SSW of Herðubreið
Wed, 14 Nov
Wed, 14 Nov 23:33 UTCM 0.6 / 4 km27 km6.6 km S of Herðubreiðarlindir
Wed, 14 Nov 21:44 UTCM 0.8 / 4.2 km4 km3.5 km WSW of Dreki
Wed, 14 Nov 21:44 UTCM 1.1 / 1.9 km5 km4.5 km SW of Dreki
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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