Askja Volcano
Updated: 28 mar. 2024 12:28 GMT -
Stratovolcano 1516 m (4,974 ft)
Central Iceland, 65.03°N / -16.75°W
Current status: normal or dormant (1 out of 5)
Central Iceland, 65.03°N / -16.75°W
Current status: normal or dormant (1 out of 5)
Last update: 27 mar 2024 (seismic swarm yesterday)
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.
[smaller] [larger]
Eruzioni del vulcano Askja: 1797(?), 1875, 1919, 1921, 1922, 1923, 1924(?), 1926, 1938, 1961
Latest nearby earthquakes
Data / ora | Mag. / Prof. | Distanza / Ubicazione | |||
25 mar 10:40 (Reykjavik) 25 mar 10:40 GMT | 3.5 5.7 km | 6.2 km a nord ovest | 7.6 km SSE of Lokatindur I FELT IT | Info | |
25 mar 08:09 (Reykjavik) 25 mar 08:09 GMT | 2.5 3.9 km | 6 km a nord ovest | 7.6 km SSE of Lokatindur | Info | |
25 mar 08:06 (Reykjavik) 25 mar 08:06 GMT | 2.5 4.3 km | 6.2 km a nord ovest | 7.6 km SSE of Lokatindur | Info | |
25 mar 08:08 (Reykjavik) 25 mar 08:08 GMT | 2.1 4.1 km | 5.9 km a nord ovest | 7.8 km SSE of Lokatindur | Info | |
domenica, 24 marzo 2024 GMT (1 sismo) | |||||
24 mar 15:40 (Reykjavik) 24 mar 15:40 GMT | 2.1 3.2 km | 2.8 km a nord est | 4.4 km W of Dreki | Info | |
lunedì, 25 marzo 2024 GMT (1 sismo) | |||||
25 mar 09:31 (Reykjavik) 25 mar 09:31 GMT | 1.6 4 km | 6.2 km a nord ovest | 7.5 km SSE of Lokatindur | Info |
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.---
Source: GVP, Smithsonian Institution
Askja Volcano Photos
Il cratere Viti e il lago Öskjuvatn riempiono solo una parte dell'enorme caldera Askja in Islanda. (Photo: Janka)
Caldera di Askja con il suo cratere sulfureo Viti e il profondo lago di Öskjuvatn sullo sfondo, Islanda (Photo: Janka)
Vista sulle acque eccezionalmente limpide del lago Öskjuvatn, caldera di Askja, Islanda (Photo: Janka)