Bárdarbunga Vulkan: Nachrichten
Bardarbunga volcano update: Latest status report - eruption continues with little changes
Donnerstag Sep 04, 2014 13:47 | VON: T
The intensity of the ongoing eruption in Holuhraun is not declining, the Icleandic Met Office reports in the latest status update:
"Lava is flowing toward ENE and it has been elongated considerably since yesterday. Since this morning, a preliminary estimate of lava field extension is about 10.8 km2.
- Seismic activity is still detected in the northern part of the dyke intrusion, along the eruption site and extending south below Dyngjujökull. Event rates are lower than in recent days, 180 earthquakes have been detected since midnight until noon. Four events larger than M4 have been detected in Bárðarbunga caldera. The largest one (M4.8) occurred last night at 03:09.
- The low frequency tremor seen yesterday disappeared last night but started again this morning, however minor compared to yesterday. The source of the tremor is not certain however possible explanation could be magma-water interaction although this interpretation has currently not been confirmed by other observations.
- There are no signs of a subglacial eruption under Dyngjujökull. No obvious changes such as increased water flow or cauldrons on the glacier surface were observed from scientists on board TF-SIF yesterday. Water meters in Jökulsá á Fjöllum do not show any unusual changes in discharge and electric conductivity.
- The GPS time series indicate slower rate of deformation in the last 24 hours. The current deformation pattern north of Vatnajökull still suggests volume increase in the dyke. No significant signs of deformation are observed around Bárðarbunga.
- There have been no observations of ash-fall away from the eruption site. Ash production is negligible.
- Sulphur dioxide emission continues. Low-wind speed condition is present in the area at the moment. Based on radar images the eruption cloud from today (composed of steam and volcanic gases) has not drifted far away and is mostly concentrated around the eruption site. Stations measuring SO2 further away from the eruption site are showing concentration below health and safety thresholds. Since this morning, the cloud reaches 6 km of altitude. The volcanic cloud will drift towards south in the coming hours due to wind rotation."
Donnerstag, Sep 04, 2014
It is far from clear what is currently happening at the eruption. Tremor (indicator of magma moving) stopped yesterday evening around 21:30 local time and has not reappeared according to the Icelandic Met Office. This could indicate that the eruption is subsiding although webcam imagery suggested it continued with no apparent big change during the night. ... [mehr]
Bardarbunga volcano update: Formation of depression in glacier, worries about possible subglacial eruption
Mittwoch, Sep 03, 2014
The eruptive activity at the Holorhaun fissure has remained stable, but ongoing deformation, although slower now, continues to worry scientists monitoring the events. ... [mehr]
Bardarbunga volcano update: Fissure eruption decreases, but earthquakes pick up again - what's next?
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]
Dienstag, Sep 02, 2014
Activity continues with little changes and remains quite intense. [mehr]