Laki deconstructed III. Grimsvötn and Beyond

Lakí deconstructed – Grimsvötn and Beyond We now continue our Laki series, first published in 2013. If you haven’t read the previous Laki instalments, I suggest that you do so first. Prequel – Laki deconstructed: I. prequel Part 1 – Laki deconstructed II. Anatomy of an Eruption Grimsvötn Fissure System The Grimsvötn fissure system is…

Laki deconstructed: I. prequel

Central volcanoes of Vatnajökull With all volcanic activity seemingly on hold during the shut-down, here is a re-post from the dungeons, originally published May 29, 2013, and written by Carl. It leads into a post on Laki which we hope to put on in the next few days. After that, who knows. Perhaps something on…

Þorbjörn’s Tormented Tribulations

As Þorbjörn rumbles on it seems ever likelier that it will erupt. So, to explain what is happening I decided to pull out all the stops and produce a more definitive article explaining the news and a possible future now that Albert has put things into context. So, without further ado, I would like to…

A Reykjanes story

Iceland does it rather well. Over the 1100 years or so since the Viking settlement, it has erupted some 63 km3 of lava, the large majority of it basaltic. A similar volume of tephra was also produced. The East Volcanic Zone is the prime suspect for any eruption, and with good reason: it is responsible…

The Woolly Mammoth-Sized Eruption Poll – One Year On

It’s been one year, yes one whole year of DNA damage and telomere shortening, since the last poll and we’re all still waiting to see who’s going to go first. We’ve seen activity increase in some areas and decline in others. Will that have swayed your opinion or will you stick to your previous vote…

Strong tremor signal detected at Grimsvötn

At 19.03 local time the automatic SIL-system in Iceland picked up a strong tremor signal. When this type of tremor signal is visible in Iceland it is normally associated with either a large jökulhlaup (rapid glacial melt outflow) that can become larger than the output of the Amazon River, or it is associated with an…

The Forgotten Volcano

A few days ago, I was sipping on a rum and coke as I was flying over Kilimanjaro and the great continental divide ripping East Africa away from the embrace of the rest of Africa. As I did that, I got to ponder the other major tectonic powerhouse, Iceland. People tend to forget or underestimate…

The Wandering Earth: mantle in motion

It is nice to live on the crust. It gives a degree of stability which the rest of the Earth lacks. It is not perfect: the quiet can be punctuated by earthquakes or volcanoes, and lacking those there is still the off-chance of a landslip or flood. The atmosphere may also interfere with our lives.…

Greip update (June 2019)

After a wonderful series on Krakatau by Albert, a mysterious island by Carl and a seismic “Intermezzo” by Lurking, I have decided to take things back to Iceland for a while. Most of us know Greip by now, and we are going to take another look at it, from a more seismic perspective with some…

Greip Expectations

  Part 1 of a Greip Series This week, under the rumblings of Torfajökull, we return to one of our favourite areas within Vatnajökull that is yet to show it’s true hand. Or has it already and is there evidence to support that? Due to some recent activity, Carl has been getting increasingly excited in…