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Bárdarbunga Vulkan
Stratovolcano approx. 2000 m / ca. 6,560 ft
Central Iceland, 64.63°N / -17.53°W
Aktueller Status: normal / ruhend (1 von 5)
Bárdarbunga Webcams / aktuelle Daten | Berichte
Bárdarbunga Vulkan-B cher
Ausbrüche des Bárdarbunga :
1080(?), 1159(?), ca. 1210, ca. 1270, ca. 1350, ca. 1410(?), 1477 (very large effusive-explosive eruption), 1697, 1702, 1706, 1712, 1716, 1717, 1720, 1726, 1729, 1739, 1750, 1766, 1769, 1797, 1807(?), 1862-64, 1872(?), 1902-03
Typische Aktivität:
Large effusive eruptions, some explosive activity.
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Bárdarbunga Vulkan: Nachrichten

Bardarbunga volcano update: Formation of depression in glacier, worries about possible subglacial eruption

Mittwoch Sep 03, 2014 16:54 | VON: T

Radar image of the newly formed depression both under and north of the glacier (Uni. Iceland)
Radar image of the newly formed depression both under and north of the glacier (Uni. Iceland)
Earthquakes around Bárdarbunga today - a significant portion is under the ice cap where also deformation occurred (IMO)
Earthquakes around Bárdarbunga today - a significant portion is under the ice cap where also deformation occurred (IMO)
The eruptive activity at the Holorhaun fissure has remained stable, but ongoing deformation, although slower now, continues to worry scientists monitoring the events.
The output of lava has been estimated to be around 150 cubic meters per second, and the lca flows continue to expand mainly to the ENE, towards the Jökulsá á Fjöllum river. The surface of land covered by the lava flows was reached 7.2 km2.
However, GPS and radar measurements indicate that more lava is being intruded into the dyke at depth than what is erupted at the surface. It is feared that new fissures open, or that the existing one might become longer, and possibly open under the ice cap. In that case, significant ash plumes and floods would be generated as magma would react violently with ice and water.
A graben, i.e. a depression bounded by parallel faults caused by extension stress, has been detected in the area. It is between 500 and 1000 m wide and extends both north of and 2 km into the the Dyngjujokull glacier. Parts of the newly formed depression is in areas where the thickness of the ice is only 150 m.
Vorherige Nachrichten
View of the eruption this morning (Mila webcam)
Mittwoch, Sep 03, 2014
Important changes seem to be under way. The fissure eruption with its spectacular lava emission at the surface still continues, but has decreased a lot since the first two days. ... [mehr]
Webcam image of the eruption this morning (Mila webcam)
Dienstag, Sep 02, 2014
Activity continues with little changes and remains quite intense. [mehr]
Aerial view of the eruption on 1 Sep (Icelandic Coast Guard)
Montag, Sep 01, 2014
The Icelandic Coast Guard made an aerial survey of the eruption site. According to IMO, the fissure is 1.5 km long, but only erupts from a 600-800 m long central section. ... [mehr]
Montag, Sep 01, 2014
The fissure eruption on Holuhraun continues with no signs of weakening. Icelandic press now counts as a relatively large effusive eruption, comparable to the Krafla fissure eruptions in 1980-1984. ... [mehr]
Picture of the eruption this morning (image: Gísli Einarsson / RUV)
Montag, Sep 01, 2014
The fissure eruption is continuing at a stable level with little variation. A curtain of lava fountains up to 70 m high is being erupted above the fissure and pahoehohoe type lava flows are expanding to several kilometers around it, forming a growing flat lava flow field. ... [mehr]
 

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