Three‐Dimensional Modeling of Mount Etna Volcano: Volume Assessment, Trend of Eruption Rates, and Geodynamic Significance

A groundbreaking three-dimensional model of Mount Etna, Europe's largest and most active volcano, reveals that its eruption rates have surged dramatically over the last 15,000 years, nearing levels typical of oceanic-arc volcanic systems despite its continental rift setting. This finding challenges conventional geodynamic frameworks, suggesting a possible transition in Etna's magmatic source from plume-related to island-arc related. The study also proposes that slab breakoff north of the volcano may have triggered this shift by allowing fluid-enriched mantle material to flow toward Mount Etna, mixing with its magmatic source. Researchers used 3-D modeling to assess volcanic product volumes emitted over the past 60,000 years, providing unprecedented insights into Etna's eruptive history and geodynamic significance.

Barreca, G., Branca, S., & Monaco, C. (2018). Three‐Dimensional Modeling of Mount Etna Volcano: Volume Assessment, Trend of Eruption Rates, and Geodynamic Significance. Tectonics, 37(3), 842–857. Portico. https://doi.org/10.1002/2017tc004851