A5036594465- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Earthquake Detection and Analysis
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Geochemistry and Geologic Mapping
- Seismic Imaging and Inversion Techniques
- Landslides and related hazards
- Atmospheric Ozone and Climate
- Calibration and Measurement Techniques
- Infrared Target Detection Methodologies
- Anomaly Detection Techniques and Applications
- Atmospheric aerosols and clouds
- Wind and Air Flow Studies
- Cryospheric studies and observations
- Aeolian processes and effects
- Structural Health Monitoring Techniques
- Fire Detection and Safety Systems
- Geophysical and Geoelectrical Methods
- Geology and Paleoclimatology Research
- Climate variability and models
- Advanced Malware Detection Techniques
Istituto Nazionale di Geofisica e Vulcanologia
2020-2024
University of Palermo
2014-2024
Consorzio Venezia Ricerche
2019-2024
INGV Osservatorio Vesuviano
2019-2024
University of Florence
2011-2022
Terra
2015-2016
Abstract We describe a new volcanic hotspot detection system, named Middle InfraRed Observation of Volcanic Activity (MIROVA), based on the analysis infrared data acquired by Moderate Resolution Imaging Spectroradiometer sensor (MODIS). MIROVA uses middle radiation (MIR), measured MODIS, in order to detect and measure heat deriving from activity. The algorithm combines spectral spatial principles, allowing sources 1 megawatt (MW) more than 10 gigawatt (GW). This provides unique opportunity...
Abstract Explosive volcanic eruptions can eject large amounts of ash into the atmosphere, posing a serious threat to populations living near volcano. The abrupt occurrence such events requires rapid response and proper hazard evaluation. Current monitoring procedures still require human intervention, which often results in significant delays between an eruption notifications being dispatched. We show how dedicated infrasound array processing be used detect notify authorities, automatically...
MIROVA (Middle Infrared Observation of Volcanic Activity) is an automatic volcano hot spot detection system, based on the analysis MODIS data (Moderate Resolution Imaging Spectroradiometer). The system able to detect, locate and quantify thermal anomalies in near real-time, by providing, a dedicated website (www.mirovaweb.it), infrared images flux time-series over 200 volcanoes worldwide. Thanks its simple interface intuitive representation data, currently used several observatories for...
Basaltic volcanoes are dominated by lava emission and mild explosive activity. Nevertheless, many basaltic systems exhibit, from time to time, poorly documented little-understood violent explosions. A short-lived, multiblast crisis (paroxysmal explosion) occurred on 15 March 2007 during an effusive eruptive at Stromboli (Italy). The crisis, which started 20:38:14 UT, had a total duration of ∼5 min. combined use multiparametric data collected the permanent instrumental networks (seismic,...
Research Article| September 01, 2010 Earthquake-induced thermal anomalies at active volcanoes Dario Delle Donne; Donne 1Dipartimento di Scienze della Terra, Università Firenze, via La Pira 4, 50121, Florence, Italy Search for other works by this author on: GSW Google Scholar Andrew J.L. Harris; Harris 2Laboratoire Magmas et Volcans (LMV), Université Blaise Pascal, 5 Rue Kessler, 63038 Clermont Ferrand, France Maurizio Ripepe; Ripepe Robert Wright 3Hawai'i Institute of Geophysics and...
Explosive activity at Stromboli volcano is analyzed using a high‐frame rate (50 Hz) thermal camera and differential pressure transducers. We develop image‐based decomposition method to derive vertical horizontal exit velocities of the explosive cloud. Peak velocity ranges between 23 203 m/s, slightly higher than previous estimates rapidly decreasing constant value 30–50 m/s within first ∼0.1 s. Plume are consistent with an elongated cloud expanding much faster vertically horizontally...
Abstract Two paroxysmal explosions occurred at Stromboli volcano in the Summer 2019, first of which, on July 3, caused one fatality and some injuries. Within 56 days between two explosions, effusive activity from vents located summit area occurred. No significant changes routinely monitored parameters were detected before explosions. However, we have calculated polarization fractal dimension time series seismic signals November 15, 2018 to September 2019 recognized variations that preceded...
Abstract The mild activity of basaltic volcanoes is punctuated by violent explosive eruptions that occur without obvious precursors. Modelling the source processes these sudden blasts challenging. Here, we use two decades ground deformation (tilt) records from Stromboli volcano to shed light, with unprecedented detail, on short-term (minute-scale) conduit drive such volcanic eruptions. We find eruptions, parameters spanning seven orders magnitude, all share a common pre-blast inflation...
Abstract The benign fuming activity of dormant volcanoes is punctuated by phases escalating degassing that, on some occasions, ultimately prelude to eruption. However, understanding the drivers such unrest complicated complex interplay between magmatic and hydrothermal processes. Some most comprehensively characterised have recently been observed at La Fossa cone Vulcano Island, but whether or not these episodes involve new, volatile-rich ascending magma remains debated. Here, we use...
Infrasonic and seismic waveforms were collected during violent strombolian activity at Yasur Volcano (Vanuatu).Averaging ~3000 events showed stable waveforms, evidencing a low-frequency (0.1-0.3 Hz) signal preceding ~5-6 s the explosion.Infrasonic mostly asymmetric with sharp compressive (5-106 Pa) onset, followed by small long-lasting rarefaction phase.Regardless of pressure amplitude, ratio between positive negative phases was constant.These waveform characteristics closely resembled blast...
Effusive eruptions are explained as the mechanism by which volcanoes restore equilibrium perturbed magma rising in a chamber deep crust. Seismic, ground deformation and topographic measurements compared with effusion rate during 2007 Stromboli eruption, drawing an eruptive scenario that shifts our attention from interior of crust to surface. The eruption is modelled gravity-driven drainage stored volcanic edifice minor contribution supplied at steady reservoir. Here we show discharge can be...
Rincón de la Vieja (10.49 N, 85.19 W), the northernmost active volcano in Costa Rica, hosts a hot acidic crater lake, which frequently produces large phreatic to phreatomagmatic eruptions. Relatively little is known about this volcano, as it poorly monitored due remote location and difficulty of access. In February-May 2017, we deployed Multi-GAS instrument continuously monitor gas concentrations plume released by vigorously degassing lake. The station registered information from February 3...
The ordinarily benign activity of basaltic volcanoes is periodically interrupted by violent paroxysmal explosions ranging in size from Hawaiian to Plinian the most extreme examples. These paroxysms often occur suddenly and with limited or no precursors, leaving their causal mechanisms still incompletely understood. Two such events took place summer 2019 at Stromboli, a volcano otherwise known for its persistent mild open-vent activity, resulting one fatality damage infrastructure. Here, we...
Gravitational instabilities on active volcanic islands present a significant tsunami hazard, with waves capable of travelling vast distances and impacting far-off coastlines. A notable example is the triggered by Anak Krakatau's activity in 2018, along earlier events that affected Montserrat 1997 2003 Rabaul 1994. However, monitoring gravitational mass movements settings remains challenging due to limited data complex dynamics volcano-landslide interactions. This hampers accurately...
Abstract Effusive eruptions at open-conduit volcanoes are interpreted as reactions to a disequilibrium induced by the increase in magma supply. By comparing four of most recent effusive Stromboli volcano (Italy), we show how volumes lava discharged during each eruption linearly correlated topographic positions vents. This correlation cannot be explained an excess pressure within deep chamber and raises questions about actual contributions dynamics. We derive general model based on discharge...