Bárdarbunga Vulkan: Nachrichten
Bardarbunga volcano update: Eruption continues, increased earthquakes under caldera
Donnerstag Okt 16, 2014 15:42 | VON: T
The eruption continues from the Holuhraun fissure with an amazing lava output at approx. 350 cubic meters per second. A large lava pond has formed over the merged main craters on the central part of the fissure, from where a river of lava flows into the plain.
LANDSAT 8 false colour image from NASA (15 Oct. 2014) can be helpful in distinguishing new advances. The lava outlines are from 12 Oct. (yellow lines) but a new lava stream has protruded southwards and the lava field has extended towards north (image: Institute of Earth Sciences)
Earthquakes have increased under the Bardarbunga caldera, which could be a sign that something is about to change.
The Icelandic Met office' recent updates writes:
"During the last 24 hours, about 70 earthquakes have been detected at Bárðarbunga and a dozen in the northern part of the dike. This is somewhat less activity than 24 hours earlier. Two quakes over five in magnitude occurred at the northern caldera rim; an M5.4 at 11:16 yesterday and an M5.0 in the early hours of the morning, at 03:14 today. One earthquake M4.2 occurred later this morning, at 09:25, in a similar location.
Observations of deep thudding sounds were received yesterday while the large earthquake occurred, possibly as a consequence thereof. Scientist went to Askja yesterday but found no signs of a rockfall, which could have caused the noises. Possibly the sounds were from jet aircrafts, passing at the same time." (IMO)
15 Oct update
" there is an increase in the number of detected earthquakes in the Bárðarbunga area. Calm weather recently, resulting in better detection of small earthquakes, is hardly enough to explain this increase anymore and probably this increase is real.
During the last 24 hours, almost 130 earthquakes have been detected at Bárðabunga and about 30 in the northern part of the dike. No quakes above 5 in magnitude have been detected since 12 October, but five quakes yesterday were between 4.5 and 4.8. The eruption was clearly visible on webcams from midnight until almost 8 o‘clock this morning." (IMO)
Montag, Okt 13, 2014
During the past days, the eruption has continued at similar intensity and with similar lava effusion rates as before. The flow field continues to expand mainly to the north and east and cover now more than 55 square kilometers, with an estimated volume of approx. 0.77 cubic km. ... [mehr]
Mittwoch, Okt 08, 2014
The eruption and seismic activity at the Holuhraun fissure continue with little variation. The Baardarbunga caldrta continues to subside at approx. 50 cm a day, accompanied by frequent earthquakes. Two magnitude 5.0 and 5.5 events yesterday were associated with a drop of the floor by approx. 60 cm alone! ... [mehr]
Freitag, Okt 03, 2014
Eruptive activity at the Holuhraun fissure continues with little changes. Large amounts of lava continue to erupt from the active fissure vents. Lava fountains are now mostly hidden inside the growing cinder cones along the fissure. ... [mehr]
Sonntag, Sep 28, 2014
Eruptive activity at the Holuhraun fissure remains stable. The lava flows continue to expand towards the north and particularly to the east, now over a snow-covered landscape as winter conditions set in. ... [mehr]
Donnerstag, Sep 25, 2014
No significant changes have occurred at the ongoing eruption in Holuhraun and the seismic crisis. The eruption itself continues with steady, very large lava output and is on its way to become the largest event in the past 150 years on Iceland. ... [mehr]