Article
Geosciences, Multidisciplinary
Daniel Mueller, Stefan Bredemeyer, Edgar Zorn, Erica De Paolo, Thomas R. Walter
Summary: The study investigated volcanic degassing at La Fossa cone using high-resolution optical and thermal infrared data, revealing a complex structure and processes. Through PCA analysis, a broad alteration zone surrounding fumaroles was found, indicating distinct subregions.
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
(2021)
Article
Environmental Sciences
Cesar Andrade, J. Virgilio Cruz, Fatima Viveiros, Rui Coutinho
Summary: The study measured CO2 fluxes from Sete Cidades Lake and found that the highest CO2 degassing occurred in areas dominated by macrophytes and algal blooms. The measured values suggest that CO2 was predominantly biogenically sourced, and the estimated total CO2 emissions varied significantly.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Fabio Vita, Benedetto Schiavo, Claudio Inguaggiato, Salvatore Inguaggiato, Agnes Mazot
Summary: The released volatiles from volcanic structures contribute to environmental pollution both in passive and active degassing stages. Vulcano Island exhibits solfataric degassing, with high-temperature fumarolic activity in the summit part and boiling fluids in the peripheral area. Periodic geochemical crises characterized by anomalous degassing interrupt the normal solfataric degassing, which are attributed to increased volcanic inputs. This study uses data from the INGV monitoring networks to identify and monitor the geochemical variations, such as the flux of SO2 from volcanic plumes and CO2 from the soil, indicating an anomalous phase of outgassing with no signs of returning to pre-crisis baseline values.
Article
Geochemistry & Geophysics
E. Dallara, P. Fulignati, S. Costa, A. Gioncada, A. Langone, M. Pistolesi
Summary: We conducted in situ geochemical analyses on apatite from the La Fossa volcano in Vulcano island, Italy, and used the data to track the pre-eruptive volatile evolution of the magma. Our results show that apatite volatile chemistry is a valuable tool for estimating pre-eruptive volatile contents of magmas. However, we observed an underestimation of water contents for specific compositions. Additionally, our findings support the occurrence of deep degassing at the La Fossa volcano and the use of apatite geochemistry to track deep volatile fluxing.
Article
Environmental Sciences
Cinzia Federico, Ornella Cocina, Salvatore Gambino, Antonio Paonita, Stefano Branca, Mauro Coltelli, Francesco Italiano, Valentina Bruno, Tommaso Caltabiano, Marco Camarda, Giorgio Capasso, Sofia De Gregorio, Iole Serena Diliberto, Roberto Maria Rosario Di Martino, Susanna Falsaperla, Filippo Greco, Giovannella Pecoraino, Giuseppe Salerno, Mariangela Sciotto, Sergio Bellomo, Giuseppe Di Grazia, Ferruccio Ferrari, Alessandro Gattuso, Leonardo La Pica, Mario Mattia, Antonino Fabio Pisciotta, Lucia Pruiti, Francesco Sortino
Summary: In September 2021, the La Fossa crater at Vulcano, Italy, showed signs of unrest. Monitoring parameters such as seismicity, GPS, tiltmeters, and geochemical analysis were used to track the sequence of effects related to the crisis. Increased seismic activity, inflation of the cone, gravity variations, and anomalies in soil and fumarole gases indicated the impending crisis. The multidisciplinary approach proved essential in interpreting the underlying processes and evaluating the hazards.
Article
Multidisciplinary Sciences
Maria Giulia Di Giuseppe, Roberto Isaia, Antonio Troiano
Summary: This paper presents the results of a new short-period magnetotelluric survey conducted on Vulcano Island (Italy), which provides detailed information on previously unexplored structures up to a depth of 2.5 km. The study identifies a moderate resistive anomaly in the La Fossa caldera area, which likely represents a conduit-like structure for the ascent of magmatic fluids. Various resistive anomalies are also detected in volcanic edifices, craters, volcanic conduits, and eruptive fissures. Additionally, a conductive anomaly is observed in the shallower hydrothermal system. Caldear faults are characterized by sharp resistivity contrasts. The findings contribute significantly to the understanding of geophysical and geochemical anomalies detected in the past year, particularly in relation to the Vulcano shallow hydrothermal system, and highlight the potential for hydrothermal/phreatic eruptive events.
SCIENTIFIC REPORTS
(2023)
Article
Geosciences, Multidisciplinary
D. Coppola, M. Laiolo, A. Campus, F. Massimetti
Summary: Detecting precursory signals before a volcanic eruption is a crucial goal in applied volcanology. In this study, a detailed analysis of VIIRS imaging bands focusing on measuring the Volcanic Radiative Power emitted by the fumarole field of La Fossa crater on Vulcano Island, Italy, was conducted. The analysis revealed disturbances in the long-term steady-state VRP in 2020-2021 before a major unrest phase began in mid-September 2021. The anomalous VRP peaked at around 1.2 MW, six to eight times the baseline, and gradually declined in the following months. A thermal pulse and seawater discoloration were observed in May-July 2022, indicating a second pressurization phase caused by the arrival of deep magmatic fluids. These findings provide valuable insights into the unrest of La Fossa crater and demonstrate the potential of VIIRS in detecting pre-eruptive signals at poorly-monitored volcanoes with high-temperature fumarolic activity.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Iole Serena Diliberto, Marianna Cangemi, Antonina Lisa Gagliano, Salvatore Inguaggiato, Mariana Patricia Jacome Paz, Paolo Madonia, Agnes Mazot, Maria Pedone, Antonino Pisciotta
Summary: In a volcanic area, the composition of air is influenced by the interaction of fluids from various environments, which can alter the outgassing dynamic. An increase in natural gas hazard, due to the presence of unhealthy components in the air, may be caused by temporary changes in pressure and chemical gradients. Unexpectedly high concentrations of unhealthy gases can sometimes occur without clear warning signs.
Article
Geology
Olivier Nadeau, Emily Mick, Philippe Robidoux, Fausto Grassa, Lorenzo Brusca, Alexandre Voinot, Matthew I. Leybourne
Summary: Studies suggest that the hydrothermally-altered rocks and volcanic gases from Solfatara and La Fossa volcanoes in Italy exhibit distinct characteristics related to the formation of low sulfidation and high sulfidation epithermal deposits.
ORE GEOLOGY REVIEWS
(2021)
Article
Geochemistry & Geophysics
Francesco Falabella, Angela Perrone, Tony Alfredo Stabile, Antonio Pepe
Summary: This work proposes a method for estimating and compensating the atmospheric phase screen in ground-based synthetic aperture radar (GB-SAR) interferograms, and its validity is confirmed through experiments, especially in areas with medium-to-high topographic slopes.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Engineering, Environmental
Maria Luisa Carapezza, Luca Tarchini, Carla Ancona, Francesco Forastiere, Massimo Ranaldi, Tullio Ricci, Gabriele De Simone, Francesca Mataloni, Nicola Mauro Pagliuca, Franco Barberi
Summary: The natural gas hazard was assessed in a residential neighborhood in Marino, Rome. The study found that high concentrations of CO2 and H2S pose potential health risks for residents, particularly an increased risk of mortality and emergency room visits related to diseases of the central nervous system.
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
(2023)
Article
Geochemistry & Geophysics
S. Baize, S. Amoroso, N. Belic, L. Benedetti, P. Boncio, M. Budic, F. R. Cinti, M. Henriquet, P. Jamsek Rupnik, B. Kordic, S. Markusic, L. Minarelli, D. Pantosti, S. Pucci, M. Spelic, A. Testa, S. Valkaniotis, M. Vukovski, J. Atanackov, J. Barbaca, M. Bavec, R. Brajkovic, V Brcic, M. Caciagli, B. Celarc, R. Civico, P. M. De Martini, R. Filjak, F. Iezzi, A. Moulin, T. Kurecic, M. Metois, R. Nappi, A. Novak, M. Novak, B. Pace, D. Palenik, T. Ricci
Summary: On 29 December 2020, a shallow earthquake of magnitude M-w 6.4 struck northern Croatia, causing significant coseismic environmental effects such as surface deformation, liquefaction, and slope failures. The surface rupture, named the Petrinja-Pokupsko Fault, is discontinuous and shows evidence of slip on a right lateral fault. Liquefaction extends over an area of nearly 600 km(2) around the epicentre. The environmental effects of the earthquake are consistent with the usual scaling relationships.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Caron E. J. Vossen, Corrado Cimarelli, Alec J. Bennett, Markus Schmid, Ulrich Kueppers, Tullio Ricci, Jacopo Taddeucci
Summary: This study fills the knowledge gap of electrical activity in lower-magnitude explosive volcanic eruptions by recording the electrical signature of the Stromboli volcano. The findings show that even lower-magnitude explosions generate detectable electrical activity, which holds promise for monitoring low VEI activity at mafic volcanoes.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Multidisciplinary
Valeria Giampaolo, Paolo Dell'Aversana, Luigi Capozzoli, Gregory De Martino, Enzo Rizzo
Summary: This work discusses the use of Vector Autoregressive and Recurrent Neural Network algorithms to predict the evolution of a saline water plume in aquifers. An integrated workflow combining time-lapse Electric Resistivity Tomography and predictive algorithms is proposed and applied to real geoelectric datasets. The results show that this approach can effectively describe the complex fluid displacement in aquifers over time.
APPLIED SCIENCES-BASEL
(2022)
Review
Geosciences, Multidisciplinary
Marianna Balasco, Vincenzo Lapenna, Enzo Rizzo, Luciano Telesca
Summary: Electrical Resistivity Tomography (ERT) is a well-established method in near-surface geophysics, but deep ERT (DERT) mapping of subsurface resistivity patterns beyond 1 km depth is limited. This review aims to define DERT method clearly and identify a depth threshold for investigation. Methodological and technological aspects are addressed, with future research directions focusing on machine learning for improved data processing and interpretation.
Article
Geochemistry & Geophysics
J. Taddeucci, P. Scarlato, D. Andronico, T. Ricci, R. Civico, E. Del Bello, L. Spina, L. D'Auria, M. Asensio-Ramos, D. Calvo, E. Padron, P. A. Hernandez, N. M. Perez
Summary: The explosive activity of the 2021 Tajogaite eruption is diverse and complex, with various pyroclast ejection modes occurring simultaneously and alternately at multiple vents. The physical parameters of these activities were captured using a camera array and showed a range of velocities and mass fluxes. Despite the variations, there is a gradual shift from one activity endmember to another without clear boundaries. The explosive activity of the Tajogaite eruption shares similarities with violent Strombolian eruptions but with previously undefined dynamics of pyroclast ejection.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2023)
Article
Environmental Sciences
Giacomo Fornasari, Luigi Capozzoli, Enzo Rizzo
Summary: Steel rebar corrosion is a major factor in the deterioration of reinforced structures. This study used GPR and SP geophysical techniques to detect and monitor corrosion. Laboratory tests were conducted on reinforced concrete samples submerged in a sodium chloride solution, with data collected to observe the evolution of corrosion.
Article
Chemistry, Multidisciplinary
Pierdomenico Del Gaudio, Valeria Misiti, Barbara Cantucci, Marcello Liotta, Guido Ventura, Tullio Ricci, Alessandra Sciarra, Deborah Di Naccio, Sara Amoroso, Paola Monaco
Summary: We present a study on the mud emitted during the Norcia earthquake in central Italy, as well as the effects of the earthquake sequence on pre-existing mud volcanoes. The mud samples were analyzed for composition, grain size, and rheological properties. The results suggest a continental origin for the mud and provide insights into its flow behavior. The findings contribute to a better understanding of mud emissions and their relationship with seismic activity.
APPLIED SCIENCES-BASEL
(2023)
Article
Geochemistry & Geophysics
A. Revil, A. Finizola, T. Johnson, T. Ricci, M. Gresse, E. Delcher, S. Barde-Cabusson, P. A. Duvillard, M. Ripepe
Summary: We conducted the first 3D island-scale tomography of Stromboli volcano in Italy, using 2D acquisition lines and a large number of measurements and electrode locations. The results show a conductive body consistent with CO2 and temperature anomalies at the surface, indicating the presence of a hydrothermal system. A petrophysical model suggests that alteration plays a significant role in controlling the conductivity and chargeability at the volcano. The temperature tomogram derived from geoelectrical measurements aligns with surface temperature anomalies and seismic activity.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Geosciences, Multidisciplinary
Fabio Olita, Valeria Giampaolo, Enzo Rizzo, Giuseppe Palladino, Luigi Capozzoli, Gregory De Martino, Giacomo Prosser
Summary: The Tramutola area in the High Agri Valley is a crucial location in the Southern Apennines fold and thrust belt, characterized by complex geological and structural features. This study combines geological survey, well logs, and deep electrical resistivity tomography to investigate the subsurface structural setting and geofluid presence in the area.
Article
Humanities, Multidisciplinary
Enzo Rizzo, Rachele Dubbini, Jessica Clementi, Luigi Capozzoli, Gregory De Martino, Giacomo Fornasari, Francesca Romana Fiano, Matteo Lombardi
Summary: The increasing use of geophysical investigations for archaeological purposes is now facilitated by Italian reforms. These reforms not only help in the discovery or spatial definition of buried archaeological evidence, but also aid in determining the state of preservation of ancient structures. By conducting a preliminary survey and using geophysical methods, such as geomagnetic and electromagnetic techniques, the Bocca delle Menate archaeological site in Italy was able to identify the layout of a Roman villa and uncover potential new archaeological remains. The results highlighted the effectiveness of geophysical methods in preserving, protecting, and monitoring previously excavated archaeological heritage, as well as detecting new buried remains.
Article
Geosciences, Multidisciplinary
Rory Walshe, Julie Morin, Amy Donovan, Francisca Vergara-Pinto, Carolyn Smith
Summary: This study explores the different beliefs and knowledges of community members living near the Lonquimay volcano through semi-structured interviews. The results indicate diverse perspectives between the two settlements, but also shared imaginaries and relationships with the volcano embedded in daily life and livelihoods. It highlights the importance of investigating geographical imaginaries and their constituent memories and knowledges, which can aid effective disaster risk reduction in the future.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2023)
Article
Geosciences, Multidisciplinary
Luigi Capozzoli, Valeria Giampaolo, Gregory De Martino, Mohamed M. Gomaa, Enzo Rizzo
Summary: Hydrocarbons pose a significant contamination risk to environmental resources, and conventional direct measurements have limited spatial coverage. Geophysics provides additional information to support conventional methods and has been widely used to detect the presence and distribution of hydrocarbons in the subsurface. Electrical resistivity tomography is an effective geophysical technique for studying hydrocarbon contamination. Experimental results demonstrate the ability of electrical resistivity tomography to monitor biodegradation processes and inform remediation activities.