The key of Iceland’s unexploded volcano

The secret of Iceland's unexploded volcano

“Some individuals assume the programs are intently linked,” he says. Edward Marshall, a geochemist on the College of Iceland — both instantly, the place magma flows between the 2 subterranean labyrinths, or not directly, the place they change strain. However any geological connection between Fagradalsfjall and Svartsinji is tenuous at finest, making understanding why magma rose from the previous a number of instances, then transferred to the latter, troublesome.

These further traits of the present disaster additional complicate investigative efforts. Over the previous few years, Thorbjörn – a volcanic hill near the Svartsinge geothermal station and Grindavik – has swelled at instances, maybe because of the motion of magma someplace under, however this has at all times ended with out incident. He says the occasions of the previous week “actually signify a break in that sample.” Tom Windera volcanic seismologist on the College of Cambridge.

Preliminary estimates point out that the quantity of magma current is bigger than the final three eruptions on the peninsula, and that it additionally flowed into the Svartsinje space at a tremendous pace. “Why the magma stream fee seems to be a lot larger this time, and the place it was sourced from, stays an vital open query,” Winder says. Given the apparently large quantity of magma, the probability of a long-lasting eruption, or a really prolific eruption of lava, is excessive – however mockingly, as with many eruptions, it’s potential that solely a portion of that molten rock will ever see the sunshine of day. .

Magma’s speedy rise towards Grindavik late final week, then pausing beneath its now empty streets, has sparked curiosity and concern. The explanations for this break are usually not solely clear. In the course of the 2021 eruption, there was a three-week hole between the curtain of magma invading the shallow floor and the onset of the eruption itself. The identical factor could occur this time. Or it might explode after you end studying this text, and there’s no positive technique to know that.

It’s not sure that there will probably be an eruption. At current, based mostly on the proximity of magma to the floor and ongoing seismic tremors, the Iceland Meteorological Workplace stories the suspects That there’s a very excessive likelihood of a volcanic eruption occurring someplace alongside this 10-mile line of warped, trembling floor, within the coming days. Nonetheless, there’s a small risk that the magma won’t be able to search out an escape route and can stay underground for the foreseeable future.

(Tags for translation)Volcanoes

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