Iceland’s eruptions since 1900

In 1900, Iceland was a very different country. It wasn’t a country, for one thing. Although Iceland had been granted self-rule, it was still a part of Denmark and the local leaders were largely Danish-educated. There was still a Danish governor. The position (not the governor) was terminated in 1904. On Dec 1, 1918 the…

The North Anatolian Fault

There is a bit of California here. The fault equals the length of the San Andreas, its shape, its movement, and its earthquakes. Even the ends are alike: where the San Andreas has formed the Salton Sea, its counterpart has embraced the Marmara Sea. Both are places where the crust is being pulled part, and…

Silent world

And now, volcanoes have gone quiet biding for a better time magmatic heat remains reliant but waits before its final climb Pele sits and stops the passage -magma, not now, just hold, delay the world outside has lost its vantage there are no crowds. wait until another day A world retreats in trepidation planes are…

Big basalt blasts III. Over the world.

2 posts ago I started talking about the pinnacle of basaltic explosivity, 2 posts later there is no mention of anything bigger than the Tarawera 1886 eruption. The eruption of Tarawera was a relatively common scenario of a dyke intruding below a lake, sure, the one responsible was a giant volcanic system of the Taupo…

Big basalt blasts II. Taal

In my last post I introduced the model for a new eruption mechanism/style. I will be referring to these events as big basalt blasts, this is just the silly preliminary name, not its definitive one I hope. So how did it work? I will briefly summarize. First a magma reservoir drains through a lateral eruption…

Big basalt blasts I. The trigger

Rhyolite has more silica, this makes it more viscous, more explosive and in turn more dangerous. Basalt is the opposite, fluid, well-behaved, safe. This could be a phrase out of any geology textbook, I can almost feel some readers getting ahead of me and thinking what I am obliged to say. But there are exceptions!…

VolcanoCafe delicacies

We live in a time of volcano famine. Eruptions are hard to come by, and many scheduled events have been postponed until after covid. And the travel restrictions pose insurmountable problems for volcano watchers. By the time we have flown to the imminent eruption, spend two weeks in quarantine in the VC dungeons isolation ward…

Did you notice the erupting Supervolcano?

Carl This post was written by Carl in 2012, during an eruption of Soputan. Some updates have been done and some hindsight has been added. Some volcanoes just can’t catch a break. Imagine for a little while that you are a bona fidé supervolcano. You are the largest of your type on the planet, you…

The Urban Volcano

Guest post from Tallis If you were to ask a volcano enthusiast “What is the most dangerous volcano on the planet?” you’d get a range of answers. From a novice, Yellowstone, from someone who only knows of American calderas, the Long Valley caldera. The generic but not wrong, Vesuvius, Mt Rainier, Campi flegrei, Paektu, Santorini,…

Seas of Hawaiʻi

Hawai’i is an amazing place. And not just for volcanologists. This is a world-on-an-island, with (apart from the most accessible eruptions in the world) Mars-sized mountains, pristine beaches, coral reefs, a world class city for shopaholics and night owls, rain forest with world-class mosquitos, desert, archaeology, astronomy, volcanoes, agriculture, flying fish and diving birds. It…