On the importance of Deep Quacks

Back in early 2011 I was sitting down for a late light evening read of “Lower-crustal earthquakes caused by magma movement beneath Askja volcano on the north Icelandic rift” by Soosalu et al. As I read angels started to sing a glorious hymn as I had an epiphany and my view on how volcanoes operate…

Iceland seismicity – monthly review (July 2017 edition)

Ever since I began plotting earthquake data for Iceland and generally for the world (where data is available), I was planning to do a monthly review of the seismicity in Iceland, so we can keep track of it on a monthly basis. Of course, if there is any stronger activity or something unusual happens, usually…

Signs and Portents of Iceland

Icelandic volcanoes are all about long term projections. They do not do things in the short run, before any eruptions you will see either several intrusive episodes like at Eyjafjallajökull, or you will see signs of steadily mounting pressure prior to an eruption. For some Icelandic volcanoes these two processes goes on for decades, or…

100 years of Icelandic volcanism

  Statistics and volcanism does not exactly go hand in hand, especially since it tends to end up with idiots claiming that volcanoes are “overdue”. A volcano is never overdue, they may shift patterns of their eruptions, go into extended periods of dormancy, or pretty much do anything that they jolly well pleases. It is…