Nyiragongo and its ultra alkaline magma – Part I

Introduction Nyiragongo is one of my favourite volcanoes and one of the most peculiar and most unusual of all active volcanoes on this planet. It’s also a very problematic volcano, close to a huge population center that is rapidly growing, and there is a lot of risks associated with its volcanism as well as with…

Iceland: Plumbing the Plume

In the last decade, science has been under increasing attacks and have lost in status among the general population. Where famous scientists a century ago could rake in some serious dosh by going on lecture tours explaining their findings, today’s scientists are increasingly unknown and scorned by the general population. Instead, we see the rise…

The Current Volcanic State of Affairs

I am taking this opportunity to look at 5 volcanoes that at least I find interesting. I am doing this out of the perspective of the life-curve of an eruption. I find this perspective to be interesting, and I think that it is something that would be both entertaining and informative for our dear readers.…

Geothermal Risk Part 1: Muddy Business

I am writing this the day before the already failed COP26 meeting in Glasgow. Failed in the respect that neither the leaders of China, nor Russia, will partake. Failed also in the respect that the leaders of Japan, Australia and Brazil are travelling there hellbent on stopping or slowing down any progress. Failed in the…

The Plume of Ballareldar?

To me the part of a volcano that is visibly erupting is the least exciting part. Perhaps a better way of stating it is, that it is only the effect of the cause. This is obviously not true to most people on the planet, so I think I owe everyone an explanation. And that explanation is especially important since we need to look deep into the volcano, to understand its future.   Like most people I can obviously spend hours looking at lava bombs being hurled, and lava slowly filling valleys. But, getting…

The Happy Dyke of Fagradalsfjall

Background The good part about volcanology is that nature will sooner or later test both your theories and your scientific models. In this case what was tested was the original model of the available pent up seismic strain in the currently active area of Reykjanes Peninsula in Iceland. It turned out that the amount of…

The Hotness of Grimsvötn

As far as volcanoes go, we like to think of them as immutable giants that rarely if ever change. We like to see Grimsvötn as a glacier covered giant of a volcano, that almost always produce moderate ashy eruptions, that are relatively speaking short-lived. Yes, once upon a blue moon it will do something big,…

The Gentle Giant of Africa

Unless you are more interested in volcanoes than is technically healthy, it is likely that you have missed out a lot on the classic Monty Python skit ‘The twin peaks of Kilimanjaro’. Most people laugh at it since they believe that there is only one peak, but for us with an un-checked interest in volcanoes,…

Greip update (June 2019)

After a wonderful series on Krakatau by Albert, a mysterious island by Carl and a seismic “Intermezzo” by Lurking, I have decided to take things back to Iceland for a while. Most of us know Greip by now, and we are going to take another look at it, from a more seismic perspective with some…

Michio Kaku and the stale dough

Flat earthers believe that the earth is flat, but the rest of us have good reasons to think that we know that it is round. The difference is that they trust in their belief in something, and that we trust the scientific process and the data and theories that it yields. A flat earther stubbornly…