Getting to Greíps with things

In this article I will pick up with the questions regarding age, GPS-tracks and the general setting. Knowing me it is quite likely that I will meander out into wild tangents as I go. Time to Greíp my pen.   The age of Greíp For a volcano that has not erupted (we will get back…

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…

On the importance of Deep Quacks

Back in early 2011 I was sitting down for a late light evening read of “Lower-crustal earthquakes caused by magma movement beneath Askja volcano on the north Icelandic rift” by Soosalu et al. As I read angels started to sing a glorious hymn as I had an epiphany and my view on how volcanoes operate…

Living Dangerously – Grimsvötn Forecasted

In August of 2017 Albert and I stuck our necks out on a limb and made a forecast each of what the future pattern of Grimsvötn was most likely to be. Or in other words, when would it erupt next. As I reread our two separate forecasts, I am struck by how different methodologies we…

Activity at Hekla and The Dead Zone

While we are waiting for Öraefajökull to drop a Christmas present and Grimsvötn to hatch an Easter egg, we instead might get a gift from Hekla. And at the horizon suddenly, a far darker bird looms. So, once more we must ask and answer the age-old volcanic question; what gives in Iceland? Hekla Many people…

The air we breath: the sulfur smell of volcanoes

“The sun became dark and its darkness lasted for one and a half years… Each day it shone for about four hours and still this light was only a feeble shadow… the fruits did not ripen and the wine tasted like sour grapes.” Michael the Syrian, about a 6th century eruption It smells. Sulfur is…

Black Swans and Iceland

Two weeks ago I wrote about statistics and the possibility to predict volcanoes in any way by using statistics. I think that the point was a bit lost, my entire point was to show that it was impossible to in any useful manner predict when an eruption would occur, and also that it is impossible…

Bárðarbunga… A restless giant

I got the honour and privilege to be the author of the first blog post of 2018. So let me take this opportunity to wish all our readers, visitors and the managing team a very happy and healthy new year.   The Bardarbunga eruption in 2014 was impressive in many ways. It was a rifting event,…

Iceland seismicity – monthly review (July 2017 edition)

Ever since I began plotting earthquake data for Iceland and generally for the world (where data is available), I was planning to do a monthly review of the seismicity in Iceland, so we can keep track of it on a monthly basis. Of course, if there is any stronger activity or something unusual happens, usually…

Greip, Gjálp’s Mysterious Sister

In this article, we move away from the usual suspects in Icelandic volcanism and turn our attention to a feature many of us have noticed over the years. This feature has only been revealed from seismicity, but here I try to unravel the past and future activity as well as give this feature a sense…