Grimsvötn 2011 eruption. Photographed by Jóhann Ingi Jónsson.

Rapid inflation at Grimsvötn

I have been tracking what is happening at Grimsvötn since the last eruption and the entire hubbub at Bárðarbunga. If you look at the GFUM GPS station you can see the slow and steady inflation speeding up a bit before the intrusion into the Bárðarbunga system started. In the days prior to the intrusion the…

Top off Hekla. Photograph from Trecking in Iceland.

Hekla and the Global Positioning System

There are occasions when you as an expert in the field write something short and to the point and you expect everyone else to be able to follow you. As you find out that people well and truly did not follow you it is very important to remember that it was you as an expert…

The Tanganasoga central volcano, El Hierro, Canary Islands, Spain.

El Hierros center of activity & Riddles

During the last few days activity has continued at El Hierro even though earthquake activity has decreased a lot. Harmonic tremor is though still increasing and GPS uplift is rather dramatic with maximum values at 75mm. With a bit of internet-spelunking I have tracked down where the maximum activity is, an indicator of where a…

hekla19701

Countdown to Hekla

It has been a long time since I wrote about Hekla. But, I guess nobody is surprised at what I am about to write. Everyone with a genuine interest in volcanoes have their favorite volcano. As many in here know Hekla is my favorite volcano to bang my head against. Few volcanoes are as intricate…