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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.
Letzte Erdbeben in der Nähe
Letzte Satellitenbilder

Bárdarbunga Vulkan: Nachrichten

Bardarbunga volcano update: Fissure eruption decreases, but earthquakes pick up again - what's next?

Mittwoch Sep 03, 2014 06:05 | VON: T

View of the eruption this morning (Mila webcam)
View of the eruption this morning (Mila webcam)
Earthquakes near Vatnajökull during the past days (IMO)
Earthquakes near Vatnajökull during the past days (IMO)
Depth vs time of the recent earthquakes
Depth vs time of the recent earthquakes
Satellite image of the eruption yesterday (NASA)
Satellite image of the eruption yesterday (NASA)
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.
At the same time, earthquake and deformation activity that had decreased yesterday have picked up again. This is likely because the internal pressure is no longer efficiently released and intruding magma no longer erupted at the same rate as added underground.
The scenario of a new eruption along new fissures, possibly under the ice, or even at Bárdarbunga or Asjka volcanoes, is considered a possible scenario.

Small explosions
Small explosions were reported to have occurred in an area north of the glacier, but it is unclear what they were caused by. A possibility includes phreatic (purely steam-driven) or phreatomagmatic (magma directly in contact with water) explosions as magma (or surface lava flows) meets and heats up wet sediments.
As lava from the ongoing Holuhraun eruption continues to flow towards the nearby glacial river Jökulsá á Fjöllum, Iceland's second largest river from Vatnajökull, and only approx. 6 km away yesterday, the interaction of lava flows with the river water will likely generate powerful steam explosions that can release dangerous gases.

A magnitude 5.5 earthquake occurred at 03:09 this night at the northern caldera of Bárdarbunga. GPS data indicate that since the beginning of the crisis, the caldera is slowly subsiding as magma flows away from underneath. This increases the risk of an explosive eruption at the volcano itself.
Earthquakes along the dyke (magma intrusion at depth) NE of the volcano have continued in two clusters: one is in the area of the current eruption,along a 20-25 km long NNE-oriented stretch under the glacier edge, the latest eruptive fissure and north of it. The second cluster is NE of Askja to the north, suggesting that some of the intrusion has even progressed into Askja's volcanic zone.

Status as of yesterday
The eruptive fissure was 1.5 km in length, positioned about 4.5 km from the ice margin of Dyngjujökull. At 14:00 UTC yesterday, the lava flow was 4.2 km2 in area. At 08:00 UTC the edge had extended 1.5 km to the east-south-east.
Vorherige Nachrichten
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]
Sonntag, Aug 31, 2014
According to local news, the lava flows have already reached more than 3 km distance from the fissure vent. The eruption is much stronger than the previous one on Friday, with up to 10 times lava output. ... [mehr]

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