Results 71 to 80 of about 331 (165)

Lava Lake Spattering Drives Seismic Tremor During the Geldingadalir 2021 Eruption, Iceland

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 8, August 2025.
Abstract Volcanic eruptions generate a continuous ground motion that is commonly referred to as tremor. Although tremor is used worldwide for real‐time monitoring of volcanoes, the mechanisms involved are generally poorly understood. Here, we study the episodic effusion during 2021 Geldingadalir eruption. We use photogrammetric data and videos acquired
Alea Joachim, Eva P. S. Eibl, Daniel Müller, Thomas R. Walter, Tom Winder, Nicholas Rawlinson   +5 more
wiley   +1 more source

Tephra From the 3 March 2015 Sustained Column Related to Explosive Lava Fountain Activity at Volcán Villarrica (Chile)

Frontiers in Earth Science, 2018
Exceptionally intense lava fountains at open conduit volcanoes are infrequent, hazardous and little-warned events. Studying their tephra falls may reveal conduit dynamics, eruption source parameters and fragmentation mechanisms.
Jorge E. Romero, Franco Vera, Margherita Polacci, Daniele Morgavi, Fabio Arzilli, Mohammad Ayaz Alam, Jorge E. Bustillos, Alicia Guevara, Jeffrey B. Johnson, José L. Palma, Mike Burton, Evelyn Cuenca, Werner Keller   +12 more
doaj   +1 more source

On the Complex Topography of Marine Volcanoes and Its Control on the Spatial and Magnitude Distribution of Surface Displacement

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract Marine volcanoes exhibit significant topographic relief, as they extend from deep below sea level to thousands of meters above. These volcanoes often have complex, asymmetric topographies due to the submersion of their flanks, yet deformation models often approximate this topographic surface as flat and overlook its effect in modeling ...
Megan Campbell, Séverine Furst, Henriette Sudhaus, Morelia Urlaub   +3 more
wiley   +1 more source

Coupled Paleomagnetism and 40Ar/39Ar Dating of Latera Ignimbrites (Vulsini Volcanic District, Italy) Unravel Processes Associated to Piston‐Collapse Calderas

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 8, August 2025.
Abstract Correlation of ignimbrite units at polygenic calderas is mandatory for the reconstruction of caldera‐forming events and proper identification of their eruption dynamics. However, ignimbrites erupted at different times from the same caldera can display similarities in composition and lithology that can hamper proper correlation of outcrops ...
Arianna Beatrice Malaguti, Stéphane Scaillet, Marco Pistolesi, Mauro Rosi, Fabio Speranza, Alberto Renzulli   +5 more
wiley   +1 more source

Active Faults, Kinematics, and Seismotectonic Evolution during Tajogaite Eruption 2021 (La Palma, Canary Islands, Spain)

Applied Sciences
During the 2021 La Palma strombolian and fissure eruption, two faults were identified that controlled the spatial distribution of earthquake hypocenters and effusive eruptive vents.
Miguel Ángel Rodríguez-Pascua, Raúl Perez-Lopez, María Ángeles Perucha, Nieves Sánchez, Julio López-Gutierrez, José F. Mediato, David Sanz-Mangas, Gonzalo Lozano, Inés Galindo, Juan Carlos García-Davalillo, Carlos Lorenzo Carnicero, Marta Béjar   +11 more
doaj   +1 more source

Multiparameter quantification of gas release during weak Strombolian eruptions at Pacaya Volcano, Guatemala

Geophysical Research Letters, 2010
Activity at Pacaya volcano, Guatemala is characterized by persistent degassing, coupled at times with lava effusion and/or coincident Strombolian‐style explosions. We used 0.25 Hz sample rate sulfur dioxide emission data from a UV camera and coincident infrasound recordings to investigate the link between varied emission rates and infrasound events ...
Dalton, M.P., Waite, G.P., Watson, IM, Nadeau, P.A   +3 more
openaire   +2 more sources

Monochromatic infrasound waves observed during the 2014–2015 eruption of Aso volcano, Japan

Earth, Planets and Space, 2019
Monochromatic infrasound waves are scarcely reported volcanic infrasound signals. These waves have the potential to provide constraints on the conduit geometry of a volcano.
Akihiko Yokoo, Kyoka Ishii, Takahiro Ohkura, Keehoon Kim   +3 more
doaj   +1 more source

A gas-slug model for basaltic Vulcanian eruptions at open-conduit volcanoes, constrained by textural characteristics and dynamics of the July 3rd, 2019, Stromboli eruption (Italy)

Volcanica
Stromboli is a unique open-conduit mafic volcano known for persistent Strombolian eruptions of highly porphyritic (HP) basalticshoshonite scoria. Stronger paroxysmal explosions occur once or twice per decade, ejecting low porphyritic (LP) golden pumice ...
Guido Giordano, Alessandro Vona, Teresa Oreade Grillo, Alessandro Frontoni, Laura Calabrò, Gerardo Carrasco-Núñez, Alessandro Aiuppa, Luca Caricchi, Gianfilippo De Astis, Danilo Di Genova, Giuseppe La Spina, Monica Piochi, Marco Viccaro, Riccardo Russo   +13 more
doaj   +1 more source

Eruptive Styles Recognition Using High Temporal Resolution Geostationary Infrared Satellite Data

Remote Sensing, 2019
The high temporal resolution of the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument aboard Meteosat Second Generation (MSG) provides the opportunity to investigate eruptive processes and discriminate different styles of volcanic ...
Valerio Lombardo, Stefano Corradini, Massimo Musacchio, Malvina Silvestri, Jacopo Taddeucci   +4 more
doaj   +1 more source

MOESM1 of Transport of ballistic projectiles during the 2015 Aso Strombolian eruptions

, 2019
Additional file 1. Methods in detail are provided. (A) Defining RGB criteria, (B) Binary Image Analysis, (C) Trajectory Analysis and (D) Acoustic and Seismic energy estimation.
Tsunematsu, Kae, Kyoka Ishii, Yokoo, Akihiko   +2 more
openaire   +1 more source