Results 31 to 40 of about 1,915 (170)

Tracking Subsurface Changes via Frequency Shifts in Volcanic Tremor Spectral Lines: Observations From Mt Etna

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Episodes of volcanic tremor provide valuable insights into the dynamics of subsurface processes at active volcanoes. Previous studies have suggested that evolving tremor properties may relate to changes in the stress conditions of the plumbing system. However, a strong causative link has remained elusive.
A. S. Yates, S. Heuninck, A. Barajas, H. Bektas, C. Caudron, S. De Angelis, L. Zuccarello   +6 more
wiley   +1 more source

The large-scale surface uplift in the Altiplano-Puna region of Bolivia: A parametric study of source characteristics and crustal rheology using finite element analysis [PDF]

, 2013
This paper focuses on the driving mechanism behind a 70 km wide region of ground uplift centered on Uturuncu volcano, in the Altiplano-Puna region of southern Bolivia.
Hickey, James, Gottsmann, Joachim, del Potro, Rodrigo   +2 more
core   +1 more source

Fluid‐Induced Fault Reactivations in Strike‐Slip Regimes: Temporal Constraints From GNSS and Seismological Analysis in the Peloritani Mts and Aeolian Archipelago (Central Mediterranean)

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract Fluids can modify the mechanical properties of rocks, including shear strength and strain behavior. We investigate the timing and magnitude of seismic events during fault motion in strike–slip systems across the Peloritani Mountains (northeastern Sicily) and Aeolian Archipelago using GNSS and seismological data analysis.
Danilo Messina, Marta Corradino, Graziella Barberi, Valentina Bruno, Mario Mattia, Domenico Patanè, Massimo Rossi, Luciano Scarfì, Fabrizio Pepe   +8 more
wiley   +1 more source

Volcanic gas emissions from the summit craters and flanks of Mt. Etna, 1987-2000

, 2004
In the last 13 years gas emissions from both the summit and the flanks of Mount Etna volcano have been monitored using remote sensing techniques (COSPEC, and FTIR since 2000) and on-site monitoring devices.
Burton, M., Bruno, N., Giammanco, S., Romano, R., Caltabiano, T., Allard, P., Murè, F.   +6 more
core   +1 more source

Dike Arrest Identification by Reverse Focal Mechanisms: Evidence From Etna Eruptions

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Real‐time prediction of dike behavior during an eruption remains a significant challenge. Determining the timing and location of dike propagation arrest is crucial for hazard evaluation. The inherent complexity of eruptive phenomena makes rapid, unambiguous interpretation through modeling difficult.
Alessandro Bonaccorso, Elisabetta Giampiccolo, Carla Musumeci   +2 more
wiley   +1 more source

Ionospheric Disturbances During the 4 December 2015, Mt. Etna Eruption

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract This study presents the detection and characterization of co‐volcanic ionospheric disturbances (CVIDs) associated with Mt. Etna's large‐scale lava fountain (Italy). Leveraging a dense and proximal GNSS network, we identify local Total Electron Content (TEC) perturbations extending up to ∼ ${\sim} $200 km south/southwest of the vent.
F. Ferrara, M. Ravanelli, A. Bonforte, V. Capparelli, V. Carbone, S. Scollo, L. Mereu, A. Cannata   +7 more
wiley   +1 more source

Evidence for ground motion polarization on fault zones of Mount Etna volcano [PDF]

Journal of Geophysical Research: Solid Earth, 2008
During local and regional earthquakes, an evident amplification of horizontal ground motion is observed at two seismological stations near the Tremestieri fault, on the southeastern flank of Mount Etna volcano. Rotated component spectral ratios show a narrow spectral peak around 4 Hz along a N40°E direction.
RIGANO R, CARA F, LOMBARDO, Giuseppe, ROVELLI A.   +3 more
openaire   +2 more sources

Validation of Near Real‐Time Retrieval of Plume Mass Eruption Rates: The Case of the 2021 Eruption of La Soufrière, St Vincent

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Satellite observations have enabled an important advance in the near‐real‐time quantification of the dynamic parameters of the volcanic plume spreading in the atmosphere. However, the link between these observations and the estimation of eruption source parameters, such as the mass eruption rate (MER), remains a scientific obstacle to be ...
A. Michaud‐Dubuy, M. Gouhier
wiley   +1 more source

The “Analogs for VENus' GEologically Recent Surfaces” (AVENGERS) Initiative: Using Terrestrial Analogs to Study Recent Volcano‐Tectonic Activity on Venus and Inform the Characterization of Terrestrial Exoplanets

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Several missions to Venus have recently been selected for launch, opening a new era for the exploration of the planet. A key question these missions seek to address is whether Venus is geologically active today. Detecting active volcanism on Venus would contribute to a better understanding of volcanic and atmospheric processes on Earth.
P. D’Incecco, J. Filiberto, J. B. Garvin, G. N. Arney, S. A. Getty, E. Kohler, L. M. Zelenyi, L. V. Zasova, O. I. Korablev, M. A. Ivanov, J. W. Head, D. A. Gorinov, S. Bhattacharya, S. S. Bhiravarasu, D. Putrevu, I. López, R. Ghail, P. Mason, J. Brossier, C. Monaco, S. Branca, R. A. Corsaro, D. Trang, J. R. Crandall, N. Mari, M. Blackett, G. Komatsu, A. Kosenkova, I. Flynn, S. Aveni, N. Lang, B. J. Thomson, I. Pagano, S. Cassisi, G. Eggers, R. E. Ernst, H. El Bilali, T. Kremic, J. Lustig‐Yaeger, N. Izenberg, L. Bruzzone, M. El Yazidi, E. Ferroni, D. Coero Borga, C. Badia, S. Parisini, G. Fiasconaro, S. Cussini, M. Dolci, E. Brocato, G. Gallardo i Peres, N. Davidova, S. Kane, C. Ostberg, V. Ortega‐Ramos, G. Di Achille   +55 more
wiley   +1 more source

Ground deformation patterns at Mt. Etna from 1993 to 2000 from joint use of InSAR and GPS techniques [PDF]

, 2007
Combined GPS measurements and radar interferometry (InSAR) have been applied at Mt. Etna to study the ground deformation affecting the volcano both over the long- (1993-2000) and short-term (1997-1998 and 1998-2000).
Palano M, Puglisi, G., Gresta S, Puglisi G, Gresta, S., Palano, M.   +5 more
core   +1 more source