On the origin of Mount Etna eruptive cycles and Stromboli volcano   paroxysms: implications for an alternative mechanism of volcanic eruption
  New mechanism of imbalance between magma column and fluid volume, accumulated in the magmatic system, is considered as a driving force of the volcanic eruption. Conditions of eruption based on this mechanism are used to explain main features of the volcanic activity (eruptive cycles and paroxysms) of the volcanoes Etna and Stromboli (Italy). 
Andrei Nechayev
physics.geo-ph