Icelandic BBQ. Photograph copyright by Eggert Norðdahl.

Bárdarbunga – The Elevator to Hell

Due to me having had a couple of hectic weeks at my day job and catching this year’s influenza I have not gotten around to writing as much as I have wished. What I had wanted to do by now would have been to explain more in detail what is happening at the Icelandic eruption,…

Beautiful Lake Taupo, New Zealand. The only hint of its volcanic origin are the distant volcanoes on the horizon, built at the edges of the ring fault system. (Provenance unknown)

When Is a Caldera a Caldera?

It does not take long for a newcomer to volcano-watching, if we are to call our hobby that, to come across the term “caldera”, cauldron. The term is very loosely used to describe large volcanic depressions ranging from volcanic craters a few hundred metres in diameter up to the huge depressions left behind by the…

Holuhraun

A Look at the Overall Picture

One of the more persistent reader questions is “What will/can happen now?”. I am pretty convinced that this question is what occupies most people on the inside of IMO, Allmannavarnir and NordVulk as well. The words of several eminent vulcanologists, that this episode is unprecedented, indicate that this may indeed be so. But in order…

Screen Shot 2014-08-29 at 02.15.09

Eruption has started

View from Mila webcam The IMO has confirmed that a fissure eruption has started north of Dyngjujökull. Please do not link to http://www.vedur.is and en.vedur.is sites at this time Please use the live Youtube stream for the webcam rather than the Mila link, as the latter is likely to be in use by emergency authorities…

Image by Tom. Upper part shows a closed propagating dyke. The lower shows a rift open down to the mantle. The upper version draws its magma from a central volcano, the lower from the mantle. Upper alternative would give a smaller eruption than the lower.

Bárðarbunga reader question

Richie, one of our readers emailed in a good question that is a good starting point for a brief update on Bárðarbunga. “Could you do an article comparing this intrusion to others? Looking at the post it appears that it is almost 40 Km long but how wide is it and in terms of volume.…