Lava field is now about 1,15 cubic kilometres.

Insubstantial changes have been to the volcanic eruption in Holuhraun over the last few weeks. The lava is now both flowing inside  closed channels and on the surface of the lava field. Data collected in flight over the lava field on  December 30th shows that the volume of the lava field in Holuhraun is about 1,15 cubic kilometres according to a report from the Icelandic Civil Protection and the Environmental Agency of Iceland. The Aviation Colour Code for Bardarbunga remains at ‘orange’.

• Insubstantial changes have been in the volcanic eruption in Holuhraun over the last few weeks. The lava is now both flowing inside a closed channels and on the surface of the lava field. Data collected in flight over the lava field on 30^th of December show that the volume of the lava field in Holuhraun is about 1,15 cubic kilometre.  
• Seismic activity in Bardarbunga continues to be strong, but it has though somewhat decreased. Total number of earthquakes in Bardarbunga from the last meeting of the board, on the 30^th of December, is just over 250. About 20 earthquakes were between M4,0-5,0. The strongest one was M4,9 last night, 5. December, at 21:53. About 50 earthquakes were detected in the dyke of the same period, most of them smaller then M1,0. One earthquake was M2,0 yesterday, 5. January, at 02:26.
• Seven earthquakes were detected in Tungnafellsjokull glacier during the period. The strongest one was around M3,0 on 30. December at 16:51.
• GPS measurements near northern Vatnajokull glacier show continuing slow deflation towards Bardarbunga. The rate of the deflation continues to slow down.
• The GPS station in Bardarbunga caldera show that the caldera continues to subside. The rate of the subsidence continues to slow down and is now around 13 cm per day.

Air quality:

• Today, Tuesday, and tomorrow, Wednesday, there are chances of gas pollution north of the volcano.
• The Icelandic Met Office provides two-day forecasts on gas dispersion from the eruptive site in Holuhraun. Most reliable are the forecast maps approved my meteorologist on duty, see Gas forecast. And although still being developed further, an automatic forecast, see Gas model, is also available (trial run, see disclaimer).
• Measurements of air quality can be found on the webpage airquality.is Data from handheld gas monitors, spread around the country, can also be found on that page