As Etna erupts, mud pools holds clues to what it may do next

Fountains of lava from Mount Etna have regularly lit up the Sicilian night sky since December, and scientists say that mud pools several kilometres from Europe’s tallest active volcano hold the key to predicting what it will do next.

The current cycle of eruptions - just like the other 200 or so that the Sicilian mountain had produced since 1998 - have posed no risk to the human settlements that surround it, but volcanologists are leaving as little as possible to chance should circumstances change.

“When Mount Etna is ready to produce new cycles of activity with strong eruptions, the very first signs of the excess pressure of gas in the deep magma reservoirs are observed right here,” said Salvatore Giammanco, standing next to the Salinelle mud pools in the town of Paterno.

Mr Giammanco, a senior researcher at the national institute of Geophysics and Volcanology - Etna observatory, says the magmatic gas, mostly carbon dioxide, mixes with methane that comes from underground hydrocarbon reservoirs, bringing water and mud to the surface.