Over the past weeks, steam plumes have been seen rising from the Holuhraun lava field. These plumes are not signs of a new eruption. The steam plumes are the consequence of partly solidified lava interacting with water. Meltwater in the outlet rivers from the Dyngjujökull glacier has been increasing, resulting in water coming into contact with the cooling lava front. It is likely that such steam plumes will continue to be seen in the weeks to come.

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Information on the aftermath of Bárðarbunga seismic and volcanic events is given here with notes and observations in March and April 2015. New material is added to the top of the article. In combination, all the monthly articles give an overview of events.

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Neither glow in the craters nor at the eruptive fissure were seen in a helicopter flight 27 February 2015. Nor were there any outbreaks of magma to be seen in this surveillance flight over the extensive lava field. Photos by Gísli Gíslason.

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The February observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and additional material. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in February 2015.

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Seismic activity on the caldera rim of Bárðarbunga, which began 16 August 2014, has constantly decreased in the last months. A slight tendency of faster decrease recently is possible. In this article, the cumulative seismic moment release per week is plotted, both for the caldera and the dyke intrusion.

All in all, the moment release on the caldera rim has decayed by a factor of 10 - 20 since the end of August 2014. However, the current weekly moment release of about 1E17 Nm (in February 2015) is still remarkable for a volcanic earthquake sequence.

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Photos of the ice-cauldrons at Bárðarbunga, including a text from the Scientific Advisory Board.

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The January observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and additional material. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in January 2015.

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The December observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and additional material. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in December 2014.

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The earthquake sequence around Bárðarbunga continues at high levels, but has shown clear signs of a gradual fading during the last weeks and months. This slow decay of activity is reflected by lower magnitudes and numbers of earthquakes, seen as a general decrease of seismic moment release. A smooth and steady decrease of seismic activity on the caldera rim is obvious and consistent with the general observation of a slowly fading activity in almost all other data sets.

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The November observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and additional material. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in November 2014.

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The October observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and additional material. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in October 2014.

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A surveillance flight with ISAVIA over NW-Vatnajökull 24 October 2014 for the Bárðarbunga and Holuhraun events; eruption, fumes, subsidence, cauldrons

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The September observations of the Bárðarbunga seismic and volcanic events are given here with daily notes, factsheets and/or status reports. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in September 2014.

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The August observations of the onset of the Bárðarbunga events 2014 are given here with daily notes, factsheets and/or status reports. Information, day by day, is given in reversed order. Bottom to top, this article gives an overview of events in August 2014.

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IMO‘s seismic data has been presented in an interactive and three dimensional model where the location of all earthquakes in northwestern Vatnajökull ice cap from 16 August 2014 can be seen and explored. The users are encouraged to test out the interactive possibilities.

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A low frequency tremor pulse was clearly seen during the Bárðarbunga 2014 seismic activity, just before noon 23rd August. This tremor was interpreted as signs of magma having arrived at the surface under the glacier and prompted IMO to raise the aviation colour code from orange to red. The tremor lasted a few hours. Next day, the colour code was changed back to orange.

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The Bárðarbunga seismic activity can now be explored in a three dimensional video which shows earthquakes from 16th to 20th August 2014.

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An overview of the Bárðarbunga seismic events and the Holuhraun eruption, 2014 - 2015, is given here with daily notes, factsheets and observations for eight months as well as the relevant news and short articles on the subject.

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The enormous rockslide on the eastern caldera rim of Askja volcano on 21st July 2014 around 23:25 was accompanied by a strong and unusual seismic signal seen even far away from the source region. The signal appeared on tremor graphs on all seismometers around Askja.

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The International Association of Seismology and Physics of the Earth's Interior, IASPEI, has sent a press release on the l'Aquila sentence in Italy. The European Seismological Commission, ESC, has encouraged its representatives in numerous countries to distribute that press release.

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In this article notes on the 2010 eruptions are given in chronological order. The purpose with this article is to provide an overview of information presented on the web. For scientific detail the reader is advised to read the relevant web pages.

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This is an overview of web-sites related to the Eyjafjallajökull eruption in 2010 and it's precursor, the eruption in Fimmvörðuháls.

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This is an overview of web-sites related to the Grímsvötn eruption in 2011.

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An eruption began in Grímsvötn, beneath the Vatnajökull ice cap, Saturday evening 21 May 2011. The photos in this article are taken by Ólafur Sigurjónsson, Árni Sigurðsson and Vilhjálmur Kjartansson.

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An eruption began in Grímsvötn underneath Vatnajökull glacier 21st May 2011. In this article, joint status reports of the Institute of the Earth Sciences and of the Icelandic Meteorological office are available (pdf 0.1 Mb), as well as a few photos and current facts.

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During the ice capped Eyjafjallajökull volcanic eruption in April-May 2010, IMO monitored the volcanic activity through various geophysical sensors (seismic, strain, GPS), river runoff from the glacier and the behaviour of the volcanic eruption cloud. Read more

This article comprises all daily and weekly comments in April, May and June, on the eruption in Eyjafjallajökull in 2010. Also, a few photographs taken in autumn when eruptive activity had ceased.

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This article answers the most frequently asked questions regarding the eruption in Eyjafjallajökull that began in April 2010.

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Here, an ashfall forecast for Iceland has been provided. The eruption activity at Eyjafjallajokull volcano is minimal and therefore no ashfall is expected. The volcano is still being monitored and an ashfall forecast will be issued if neccessary.

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The colour of an eruption plume is to some degree dependent on the ash concentration and the entrainment of ambient air. But the colour is even more influenced by the surrounding light conditions, the strength of sunshine, the angle of the sun, the brightness contrast between the ash cloud and the surrounding skies as well as the composition of the volcanic haze. Ólafur Sigurjónsson, who lives in Forsæti nearby, has taken splendid photographs of the ash cloud and Eyjafjallajökull since volcanic activity began, early 2010. Read more

This article contains a list of eruptions in Iceland since the beginning of the 20th century; as well as links to various web-sites describing the latest volcanic events.

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Concise description by Dr. Freysteinn Sigmundsson and other scientists on the events in the Eyjafjallajökull volcanic system and the eruption on Fimmvörðuháls.

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