Iceland in motion

Imagine an Atlantic island affected by a deep and complex rift, with half the country pulled east, towards Europe, and half pulled west, leaning towards America, but the northern part actually feeling closer to Scandinavia whilst the southern half doesn’t know where it is going. The rifting causes frequent eruptions with significant financial consequences. Its…

The Dead Zone 2: The Sound of Silence

Although I’m more of an unseen hand (Volcanonati?) behind the scenes at VolcanoCafe and the VC Facebook group, I wanted to step out the shadows and give the Dead Zone article some new light. It’s an area I’ve always been fascinated with and it was this very area, along with its fissure eruptions, that first…

Deep magmatic roots of Katla…

For every person that is interested in volcanoes and complex geology, Iceland is probably something special. A unique place where the MAR intersects a mantle plume, or vice-versa. A beautiful island filled with powerful volcanoes and other complex volcanic and hydrothermal features. All in one nice little spot. Of the entire Icelandic volcanic lot, the most…

Iceland’s secret heart: Hofsjökull volcano

Where the blood flows calm like a purling river Late March, a few minor earthquakes happened in the sleeping heart of Iceland. They were hardly worth noting, at M1, and 4-5 km deep. The centre of Iceland is far from anywhere. It is calm and is hard to reach, thus receives little attention and fewer…

Signs and Portents of Iceland

Icelandic volcanoes are all about long term projections. They do not do things in the short run, before any eruptions you will see either several intrusive episodes like at Eyjafjallajökull, or you will see signs of steadily mounting pressure prior to an eruption. For some Icelandic volcanoes these two processes goes on for decades, or…

Eldgja: Feeding the Fire

The facts of Eldgja are well established. We know approximately when it happened, where it happened, how much lava, tephra and sulphate was ejected. We have found the tephra in Greenland. We think we know the human impact over much of the northern world, arising from three years of winter. But on other aspects, our…

The Eldgja Eruption: Iceland’s Baptism by Fire

Iceland is the most volcanic place in the world. Explosive eruptions, from many different volcanoes, are common, unpredictable and, when seen from afar, exciting. But don’t be fooled. These volcanic explosions are small fry, and mostly harmless. Less common but far more devastating are the other type, responsible for 80% of all Icelandic lava and…

Trembles at Tjörnes

Although the 2,265 volcano-tectonic earthquakes at Planchon-Peteroa as reported yesterday by Georges Vitton (Le Chaudron de Vulcain) is perhaps the more interesting news, our readers are probably more interested in the large earthquake swarms in Tjörnes Fracture Zone. What is happening? Is it an eruption, is an eruption imminent or can an eruption be expected…