Grindavik Visualised – Part I

Due to this article being so graphics heavy, I had to break it up into two parts, with the second part coming tomorrow evening. It is somewhat ironic that my brain is operating mainly in a graphical mode, and that I think in visualisations and graphic models, whereas at the same time I am about…

Þorbjörn on the brink

Volcanoes rarely follow human timescale and human planning. This time it is Þorbjörn that decided to ruin things just after Albert had published a truly nice read about Santa Maria. Þorbjörn better do as told below, otherwise Albert will have words with the volcano in question for ruining his article scheduling.   Background In the…

The Hunga Tonga eruption of 2022

Volcanoes can be quite predictable, in a general sort of way. We know that Grimsvotn will erupt – just not when, although it is fairly likely to be within the next two years. Similarly, Mount Rainier will erupt some day, although this could be centuries or millennia off. Six years ago, we predicted that Mauna…

The drop dead gorgeous Lake Taupo inside the Oruanui Caldera of Taupo Volcano. Photograph by Bo-deh.

Taupo Tapping Away

Taupo is one of those volcanoes I do not like to write about in Volcanocafé. It is one thing to write a historical retrospect of what it has done in yon olden days, and something completely different when it is doing something interesting. The reason is simple, Taupo is one of those volcanoes that have…

Why is my favourite volcano broken?

Volcanology is filled with moments when you look at your favourite volcano doing something interesting, and you hope that it will erupt. There is no shame to admit it, we are secretly cheering our favourites on towards the inevitable eruption. Time and time again we are though let down by our volcanoes, and if you…

Askja for Beginners

I love large caldera volcanoes. The first reason is that they are always very beautiful, especially if they have lakes in them. The second reason is that most of them are of a class of volcanoes that leave their pointier cousins far behind. Size matters after all. At one end of the beauty spectrum, you…

Islands in the stream

In the last few weeks, I have been unusually busy with things decidedly non-volcanic as the world turned quite a bit darker. Regardless I noticed that there were quite a few things going on in the volcanic part of the news, but that did not for natural reasons end up as big news items. One…

Hunga Tonga and The Supercriticality Event

As the numbers for the Hunga Tonga eruption continues to come in it is becoming ever clearer that something truly momentous happened, something not seen or heard in 139 years. With a columnar height of 55 kilometres, an explosive pressure wave travelling several laps around the planet, forming a medium sized deadly tsunami, gouging out…

What if Katla erupted?

First of all, I should clearly state that there are no current signs that an eruption at Katla is about to happen in the near future. Instead, the reason is that I was asked by one of our readers, Patricio Oliver, what would happen if the volcano erupted, especially for the inhabited areas. This is…