Bárdarbunga volcano news & activity updates
Bardarbunga volcano update: Continuing eruption formed a 70 km² lava flow and caused 44 m of caldera subsidence since its onset on August 31
Sunday Nov 09, 2014 22:48 PM | IS
The latest map showing the extent of the lava flow as estimated from radar images. The lava now covers 69,9 km² (69,5 km² + 0,4 km²). Analysis by the Institute of Earth Sciences (IES).
Data from the GPS station at the centre of the caldera, showing the temporal transmission defect between 7 and 8 november, and a subsidence of ca. 0.5 m in that time span.
The volcanic eruption at Holuhraun gives no signs of weakening and continues to eject an impressive lava fountain from the central Baugur crater at a rate similar to the past few weeks. This record-breaking eruption started on the 31st of August 2014 and formed a more than 17 km long lava flow. Using the successive outlines of this lava flow as drawn on a radar image from the Icelandic Coast Guard, researchers from the Institute of Earth Sciences estimated that by now the lava has covered an area of 70 km².
Overview of the vertical displacement measured at the centre of Bárðarbunga caldera since September 12 - total subsidence since then is ca. 21 m.
Subsidence of the glacier surface above the Bárðarbunga caldera is also still going on. This vertical displacement is monitored by near real time presentation of data from a GPS station that was mounted in the centre of the caldera on September 11. There was a technical problem that prohibited transmission of these GPS data on the 8th of November, but this has been fixed. Comparison of the vertical location of this GPS station before and after the ca. 24 h communication problem shows subsidence of up to half a meter in a single day. The total subsidence recorded at Bárðarbunga caldera since 12 September is 21 m and based on earlier GPS data the total subsidence since the onset of this eruption is at least 44 m.
The area’s seismic activity is also continuing at a similar intensity. On November 7 there was a M 5.4 earthquake at the northeastern rim of the caldera and this was the first earthquake over magnitude 5 since the 2nd of November. Since then, 15 earthquakes between magnitude 4 and 5 occurred, as well as quite a few between M 3 and M 4. Lower seismic activity is also observed at the intrusion, the largest earth quake of which was of magnitude 2.5.
All information and images from the Icelandic Met Office (http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2947)
Thursday, Nov 06, 2014
De Holuhraun horizontalis uitbarsting blijft met geweldige stabiliteit. Door nu, meer dan 1 kubieke kilometer van magma is zijn uitgebroken en omvat bijna 70 vierkante kilometer (hetgeen impliceert een gemiddelde dikte van 15 meter). Lees alle
Thursday, Oct 30, 2014
Enorme lava effusie tarieven blijven karakteriseren de lopende uitbarsting op de horizontalis Holuhraun. Er zijn geen tekenen van de uitbarsting die binnenkort aflopen. Lees alle
Monday, Oct 27, 2014
De uitbarsting blijft met geen significante veranderingen. ... Lees alle
Saturday, Oct 25, 2014
Bardarbunga vulkaan update: voortzetting van de uitbarsting, het verhogen van de aardbevingen op Bárdarbunga
De uitbarsting lijkt te blijven ongewijzigd, maar er waren geen visuele waarnemingen vandaag. IMO schrijft: ... Lees alle
Friday, Oct 24, 2014
Bardarbunga volcano update: Eruption continues with large lava flows, increasing seismic activity at caldera
The volcanic eruption in Holuhraun continues at similar rate, and has now been going on for more than 50 days. ... Lees alle