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Recent earthquakes under Herdubreid volcano
Montag, Okt 12, 2015
A shallow earthquake swarm has been occurring 25 km NE of the Aksja caldera since Thursday. ... [mehr]
Mittwoch, Jul 23, 2014
A large landslide occurred from the southern wall of the Askja caldera yesterday night. The slide caused a large flood wave in the Öskjuvatn lake that also swept into the famous Viti crater. ... [mehr]
 

Askja Vulkan

Stratovolcano 1516 m (4,974 ft)
Central Iceland, 65.03°N / -16.75°W
Aktueller Status: unruhig (2 von 5)
Askja Webcams / aktuelle Daten
Askja volcano books | Tours
Last update: 12 Okt 2015 (earthquake swarms)
Typische Aktivität: explosive + effusive
Ausbrüche des Askja : 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961
UhrzeitMag. / TiefeDistanceOrt
Tue, 25 Apr
Tue, 25 Apr 17:55 UTCM 0.6 / 6.3 km22 km3.2 km SSW of Herðubreið
Tue, 25 Apr 17:55 UTCM 1.1 / 7.8 km23 km2.2 km SSW of Herðubreið
Tue, 25 Apr 13:58 UTCM 0.2 / 6.7 km19 km15.0 km E of Kistufell
Tue, 25 Apr 07:48 UTCM 0.3 / 7.5 km20 km15.7 km ENE of Kistufell
Tue, 25 Apr 07:48 UTCM 0.2 / 5.2 km21 km15.8 km ENE of Kistufell
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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.

Beschreibung:

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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