Changes in the structural stability of the volcano
What Are The Causes For Mount Etna To Erupt?
Well I don't know but there is some info I found :)
* What causes mt etna to erupt?
The Etna is an effusive volcano and in the past years it gives us great shows of lava fountain and eruptions
Etna is nearly continuously active, and in terms of “productivity” it is the second most active volcano on Earth after Kilauea on Hawaii. Like all the volcanoes, mount Etna has its specific magma chamber and the process of erupting lava is the same of the other volcanoes
* What causes mt etna to erupt?
The Etna is an effusive volcano and in the past years it gives us great shows of lava fountain and eruptions
Etna is nearly continuously active, and in terms of “productivity” it is the second most active volcano on Earth after Kilauea on Hawaii. Like all the volcanoes, mount Etna has its specific magma chamber and the process of erupting lava is the same of the other volcanoes
I'm not sure I'm trying to find that to! Lol.