Between December 2020 and February 2022, the South East Crater of Etna has been source numerous eruptions, mostly characterized by emission lava fountains, pyroclastic material short-lasting flows. Here we estimate volume distribution deposits elaborating multi-source satellite imagery. SEVIRI data have elaborated using CL-HOTSAT to emitted during each event calculate cumulative volume; Pléiades WorldView-1 used derive Digital Surface Models, whose differences provide thickness distributions...

Abstract The eruptions of December 2015 and May 2016 at Voragine crater were among the most explosive recorded during last two decades Mt. Etna volcano. Here we present data coming from geophysics (infrasound, LP, VLP, volcanic tremor, VT earthquakes, ground deformations) petrology (textural microanalytical on plagioclase olivine crystals) to investigate preeruptive magma storage transfer dynamics leading these exceptional eruptions. Integration all available has led us constrain chemically,...

We present a multidisciplinary research aimed at quantifying the conditional probabilities for hazards associated with pyroclastic avalanches Etna, which combines physical and numerical modeling of granular probabilistic analysis. Pyroclastic are modeled using depth-averaged model IMEX-SfloW2D, is able to simulate transient propagation emplacement flows generated by collapse prescribed volume material. Preliminary sensitivity analysis allowed us identify main controlling parameters dynamics,...

Between 2019 and 2022, multiple fires affected Stromboli Island, causing significant environmental damage highlighting the need for effective preventive measures. In 2019, two were ignited by eruptive activity, while in human actions responsible a major wildfire. These events underline complexity of fire dynamics volcanic environments, where topography, wind, vegetation flammability play critical roles propagation. Furthermore, aftermath these has triggered secondary hazards, such as floods...

Lava flow hazard is a significant geological threat associated with volcanic activity. Understanding and quantifying this critical to protect communities, infrastructure the environment, especially in active areas such as Mount Etna (Sicily, Italy). In work, we propose new probabilistic methodology for lava assessment on based 4,000-year eruption dataset accurate statistical analyses. The combines probability of future vent opening, probabilities occurrence individual classes weighted...

The 10 February 2022 pyroclastic avalanche at Mt. Etna represents a significant example of high-mobility granular flow occurring basaltic volcanoes. While such phenomena are typically associated with more explosive volcanic systems, their occurrence underlines relevance for hazard assessment in environments dominated by effusive and mildly eruptions.This study focuses on triggered the gravitational collapse Southeast Crater’s (SEC) during an intense lava fountaining episode. event...

On 3 July 2019, paroxysmal activity at the Stromboli volcano ignited a fire in south-western sector of island. This burnt entire southern and eastern area. Thanks to intervention firefighters, did not spread northward, thus avoiding further damage. What could have happened if there had been no intervention? Would stopped its on own, or would it island? We show through numerical simulations what put out by firefighters how modelling can help plan preventive actions avoid worst-case scenarios.

Lava flow hazard is a significant geological threat associated with volcanic activity. Understanding and quantifying this crucial for protecting communities, infrastructure, the environment, especially in active areas like Etna. Here we propose new probabilistic methodology assessing lava at Etna volcano based on 4,000 years-long dataset of eruptions accurate statistical analyses. The combines probability future vent opening, probabilities occurrence individual classes eruptions, weighted...

We present here a comprehensive petrological investigation of products emitted during the December 2020 – February 2022 paroxysmal sequence occurred at South East Crater Mt. Etna, interpreting results within framework post-2011 activity volcano in order to provide realistic illustration evolution plumbing system throughout last decade. have combined thermodynamic modeling on whole rock with micro-analytical data volcanic crystals and glasses investigate physical chemical conditions magmas...

Abstract Integrating geodetic, seismic, and petrological data for a recent eruptive episode at Mount Etna has enabled us to define the history of magma storage transfer within multilevel structure volcano, providing spatial temporal constraints movements before eruption. Geodetic related July–August 2014 activity provide evidence reservoir ~4 km below sea level. This pressurized from late March fed magmas that were then erupted vents on lower eastern flank North‐East Crater (NEC) New...

Abstract A new sequence of eruptions occurred at Mt. Etna volcano during the first half 2017, after almost 8 months quiescence. These episodes had low-to-mild intensity and markedly differ from violent paroxysms Voragine Crater (VOR) December 2015 May 2016. Despite general weak explosive nature eruptions, activity 2017 revealed unusually complex dynamics magma ascent interaction. Detection investigation such required a multidisciplinary approach in which bulk rock compositions, crystal...

Abstract The 24–27 December 2018 flank eruption at Mount Etna (Southern Italy) has been investigated through a multidisciplinary approach in which olivine chemical zoning and diffusion chronometry data were integrated with models inferred by GNSS (Global Navigation Satellite System) measurements. Inspection of the from core to rim allowed identification some dominant ways transfer interaction between magmas pertaining different magmatic environments. Most crystal cores are representative...

The rate at which lava is discharged plays a key role in controlling the distance covered by flows from eruptive vents. We investigate available time-averaged discharge rates (TADRs) estimated for recent flank eruptions Mt. Etna volcano (Italy), order to define possible generalized effusion trend consistent with observed real data. Our analysis indicates rapid waxing phase peaks occur between 0.5 and 29% of total eruption time, followed progressive decrease waning phase. Three curves are...

The development of probabilistic maps associated with lava flow inundation is essential to assess hazard in open vent volcanoes, especially those that have highly urbanized flanks. In this study we present the new map linked summit eruptions Mt. Etna, which has been developed using a approach integrates statistical analyses volcanological historical data numerical simulations flows. analysis (including location, duration and volumes) about all occurred since 1998 allowed us both estimate...

Abstract Olivine‐hosted melt inclusions (MIs) from tephra of the recent 2013–2018 activity at Mt. Etna were investigated for assessing chemical evolution magmas and quantifying their pre‐eruptive volatile budget. Microanalyses revealed two types MIs present in all eruptions; inclusions, particularly less evolved ones, appear to have experienced water loss coupled with SiO 2 depletion. Restoration original ‐H O concentrations provides consistency thermodynamic modelling magma evolution. The...

We hereby present VolcFire, a new cellular automaton model for fire propagation aimed at the creation of hazard maps fires volcanic origin. The relies on satellite-derived input data topography, land-use, fuel, and humidity information, produces probabilistic simulating spread. contains several simplifications compared to current state-of-the-art, limiting its usability plan fire-fighting interventions during an event in favour reduced computational load. accuracy reliability are also...

Numerical models have been extensively explored for simulating forest fire propagation, employing a spectrum of approaches ranging from intricate physical to simpler graph or cellular automata-based models. These rely on various input parameters such as humidity, radiant capacity, vegetation flammability, tree types, wind and topography accurately replicate spread. When integrated with Geographic Information Systems (GIS), these facilitate classifying soil mapping burnt areas. Despite the...

Automated early warning systems for volcanoes, capable of recognition any signs impending eruption, as well to track the evolution different kinds eruptive activity in near real time, are essential assess volcanic hazards and mitigate associated risk. Satellite imagery offers a systematic, synoptic framework monitoring active volcanoes even most isolated corners Earth. Here we have applied machine learning technique automatically classify pixel SEVIRI over an volcano, order detect...

Lava flows represent the main hazardous phenomena that may threaten human buildings in basaltic volcanoes. Physical and chemical characteristics of lava, as well rate at which lava is emitted vents, strongly control motion extensions flows. Estimation likely paths follow during an ongoing eruption can be evaluated through numerical modeling driven by satellite-derived time averaged discharge (TADR). However, complex eruptive dynamics, such sequential opening new formation tubes fluctuations...

The integration of lava flow forecasting models with satellite remote sensing techniques marks a significant advancement in quantitative hazard assessment for effusive volcanic eruptions. Within the framework DT-Geo project, we are developing workflow that harnesses High-Performance Computing (HPC) capabilities, aiming to improve through ensemble-based and data assimilation methods. At core is VLAVA code, which simulates propagation, temperature-dependent viscosity over complex topography,...