Prelude to Krakatau. II

In part I, we discussed the geology and current state of Krakatau. Now it is time to look at events before the Big Eruption. Was it hiding in the shadows, or did it make its intentions clear to all? History For centuries before its destruction, Krakatau was a familiar landmark. At least some of the…

Prelude to Krakatau. I

Links to Part II and Part III. Other Krakatau posts: Krakatoa: a blast from the past Krakatoa skies: when the Sun turned blue The rise and fall of Anak Krakatau All eruptions have history. Volcanoes may sometimes appear to erupt out of the blue; the mountain may not even have been recognized as a volcano,…

536: apocalypse

The legend of the horsemen of the apocalypse goes back to the first century AD. It is a gripping image, which has transcended cultures. The best-known of the horsemen is Death, riding an ashen-coloured horse. This is the only one given a name in the original. One horseman, riding a black horse, brings famine, making…

Eruptions to come

Let’s start with a question. Which country do you think has the most frequent volcanic eruptions? Before you read on (or peek below for the answer), take a minute to think about it. You can probably guess that Australia is not a front runner. In fact, only two or three countries readily come to mind.…

The eruptive past of Indonesia

Gunug Agung has had impressive eruptions in the past week. So far, in spite of the publicity, the event has remained relatively minor. We do not know whether these are the initial rumblings and in the next weeks and months there will be far larger explosions, or that this suffices to relieve the pressure inside…

History of Öræfajökull

Iceland has ice. Glaciers cover 10% of its landscape, including its highest volcanoes. Of its frequent eruptors, only Hekla is (almost) ice free. Katla, Bardarbunga, and Grimsvötn, which together account for the large majority of eruptions, are all hidden underneath ice sheets, which gives problems studying the volcanoes themselves. But a more serious issue 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…

Grimstone vs Yellowvötn: Battle of the Giants

Carl – May 9, 2014 (re-post) In the west corner of the ring you find Yellowstone wearing blue, red and white striped trunks and in the east corner you find Grimsvötn wearing Fire & Ice colored trunks. Welcome to a spectacular fight about who is the largest, meanest volcano on the block. As the fighters are…

Echoes from a silent spring

It was a spring without voices. On the mornings that had once throbbed with the dawn chorus of robins, catbirds, doves, jays, wrens, and scores of other bird voices there was now no sound; only silence lay over the fields and woods and marsh. (From Rachel Carson: Silent Spring) The history of life on earth…