Ten volcanoes with super-eruption potential: Part III

Here comes the conclusion to the series, the 3 volcanoes that I considered the likeliest to produce a VEI-8 eruption. 3. Calabozos and neighbours (Chile) This volcano is located in Chile. It forms part of a little known, little studied, silicic flare-up of the Southern Andes Volcanic Zone. Steepening of the subducting Payenia Slab gave…

Ten volcanoes with super-eruption potential: Part II

We continue with a list of volcanoes capable of producing a VEI-8 eruption from least to most likely and taking into account the factors that I explained in the previous post, here. Next volcano capable of a VEI-8 is… 6. Long Valley-Mono (USA) The volcanism of the western United States can give you a headache…

Ten volcanoes with super-eruption potential: Part I

Where will the next VEI 8 supereruption (>1000 km3 of erupted volume) of the planet take place? This is the question that these articles are here to answer. To put it another way, this list will evaluate and rank the supereruption potential of several volcanic systems. I didn’t use any objective parameter to calculate which…

Batholiths and flare-ups

An eruption that ejects more than 1000 km3 of material (ash, pumice, rock…) is considered a super-eruption, a VEI-8. These represent the greatest volcanic events that have taken place during human existence. Such apocalyptic phenomena attract a lot of attention, from scientists, volcanoholics and doomsayers. The term supervolcano has become increasingly popular but also increasingly…

The 3 x 4½ km summit caldera of Mount Katmai, Alaska, that formed after the 1912 VEI 6 Novarupta eruption (Wiki)

Calderas

This is a re-post that has been re-posted before. But we attract new readers and sometimes it is worth republishing something. Especially since this is about Icelandic (and other) calderas, something that has been raised in the comments recently. This post was originally written during the Holuhraun eruption and associated Bardarbunga collapse, and you will…

Mercurious

It is a strange one. Metals are shiny, and this one certainly is, in a dark-grey, silvery way. It is so shiny that it can even be used as a telescope mirror. Metals tend to be hard, but this one certainly is not. It isn’t even a solid. Mercury is one of only two elements…

Power of the past: 25 super eruptions – continued

The VC list of 25 super eruptions – continued In our quest for major eruptions, we are continuing our journey around the world, moving north from Indonesia. Kyushu, Japan Japan’s southernmost main island is volcanically highly active. Past explosions have left large calderas, separated into two groups. In the centre of Kyushu is Aso, and…

Power of the past: a compilation of 25 super eruptions

The battle of Stalingrad was among the bloodiest and most horrific of the second world war. During the cold winter of December 1942, the Commissar of Stalingrad organised open-air party meetings for local artists and musicians to encourage the exhausted and hungry soldiers. One of those musicians was the violinist Mikhail Goldstein. On New Year’s…

The air we breath: the sulfur smell of volcanoes

“The sun became dark and its darkness lasted for one and a half years… Each day it shone for about four hours and still this light was only a feeble shadow… the fruits did not ripen and the wine tasted like sour grapes.” Michael the Syrian, about a 6th century eruption It smells. Sulfur is…

The Ruminarian, again

By GeoLurking, January 8, 2014 (republished) Curmudgeon “an ill-tempered person full of stubborn ideas or opinions” Well, if the shoe fits, I guess I’ll wear it. But… I don’t come about it lightly. To me, stuff has to make sense. One thing I abhor is mindless ranting that is specifically intended to scare people. What…