Mount Etna May Stem From a Rare Magma Mechanism, Explaining the Volcano's Puzzling Origins

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A half-million years old, Etna spits her anger several times a year over Sicily. If he is one of the most monitored craters on the planet, his very existence has so far remained an absolute geological riddle. Indeed, this giant of fire categorically refuses to fit into the usual models of global volcanology. [...]

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Etna, one of the most active volcanoes on the planet, draws its magma from small pockets located in the upper mantle, 80 kilometres deep. This very rare type of volcanoes called "small spot" would be fed sporadically in magma thanks to complex tectonic movements that pull out as a sponge grows. This would explain why the Etna does not correspond to any model of classical volcanic formation. The volcanoes of our planet are formed by the [...] Thi…

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The Etna seems to be a normal volcano, but it has long been puzzling. According to a new study, it belongs to an exotic volcano type - and is unique worldwide.