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Location of the fissure eruption at Bardarbunga
from www.bbc.com here |
On Sunday, a "curtain of fire" developed along a fissure near Bardarbunga, causing a brief alert and a banning of planes flying within 6,000 feet of the volcano. The eruption was described as "calm but continuous."
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A detailed chronology of the current activity is being maintained on
Wiki. Seismic activity has been continuous, with lava erupting on August 29th in the Holuhraun lava field. The active fissure was about 600 m long, and the entire eruption appears to have been only about 4 hours long. Seismicity quoted down during the eruption, but then returned. On August 30th it appeared that the dyke stopped migrating north, but seismicity continued. Another eruption began at 4:00 a.m. on August 31st, producing a lava flow about 1 km wide, 3 km long, and several meters thick. The flow rate was estimated at 1000 cubic meters/second. Seismic activity is continuing. Updates are posted continuously on the Icelandic Met Office
webpage. They've posted the adjacent interesting map showing road closures north of Vatnajokull as a result of the current activity and potential flooding (the hashed area north of the big ice cap).
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