Mt. Etna is a composite stratovolcano located along the Ionian coast of the Sicily. The frequent flank eruptions (mostly along the NE, S and W rift zones) lead to a high volcanic hazard that is getting worse by the intense urbanization on the flanks of the volcano. In the framework of the project PON SIGMA (Integrated Cloud-Sensor System for Advanced Multirisk Management), we developed a completely automatized computer-assisted analysis that evaluate in near real-time the areas prone to the highest vent opening probability and the corresponding hazard related to effusive eruptions. The Bayesian Event Tree_Eruption Forecasting (BET_EF) algorithm is firstly used to evaluate a long-term hazard map based on the last 4.0 ka flank effusive activity. The analysis and inversion of real time...