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Mittwoch, Mär 27, 2013
Small earthquakes have also been more frequent under and near the Askja caldera and Bardabunga volcano (to the SW of Askja) in the past few days.
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Sonntag, Mär 10, 2013
A swarm of earthquakes at shallow depths, mostly around 2-5 km has been occurring in an area about 12 km NE of the caldera. 27 quakes including 6 between magnitudes 2.1-2.7 were recorded yesterday.
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Askja VulkanSchichtvulkan 1516 m (4,974 ft)
Central Iceland, 65.03°N / -16.75°W Aktueller Status: unruhig (2 von 5) Askja Webcams / aktuelle Daten
Letztes Update: 27 Mär 2013
Typische Aktivität: explosive + effusive Ausbrüche des Askja : 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961 Letzte Erdbeben in der Nähe:
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.--- Source: GVP, Smithsonian Institution |
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