What is it about?
Readings from a sensor for the radioactive gas near summit craters of the Italian volcano reveal signatures of such processes as seismic rock fracturing and sloshing of groundwater and other fluids.
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Why is it important?
Our study revealed that essentially two processes influenced radon levels at the monitoring station. The first is linked to the rise of magma in the volcano’s central conduit. The second process is rock fracturing from an earthquake or seismic swarm.
Perspectives
Applied to Etna, sloshing may explain how rock shaking induced by a seismic swarm can cause oscillatory motion in the groundwater and in the magmatic fluids contained within the volcano.
Dr Marco Neri
Istituto Nazionale di Geofisica e Vulcanologia
Read the Original
This page is a summary of: Radon Tells Unexpected Tales of Mount Etna’s Unrest, Eos, March 2018, American Geophysical Union (AGU),
DOI: 10.1029/2018eo094693.
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