Results 51 to 60 of about 498 (148)

Self‐Potential Signal Associated With Hydrothermal System Disrupted by Extreme Raining Events; The Case Study of Formica Leo, Piton de la Fournaise, La Réunion Island

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract The scoria cones called Formica Leo located at the base of the Piton de la Fournaise terminal cone have been chosen for its significant positive Self‐Potential (SP) anomalies associated with hydrothermal uprising fluids to monitor SP signal and study its dynamics in relation with huge and extreme rainfall events.
Emilie Roulleau, Anthony Finizola, Nicolas Vinet, Romain Biennais, Mazhar Meralli Ballou, Amélie Poullot, Céline D'Angelo, Clément Grace, Emma Chaudron Vrignaud, Rachel Gusset, Killian Mussard, Jehoji Kuzamba Ethu, Elisa‐Lou Reati   +12 more
wiley   +1 more source

Megabeds in the Marsili Basin, Tyrrhenian Sea

Basin Research, Volume 37, Issue 6, November/December 2025.
Widepsread and thick megabeds occur in the Marsili Basin of the Tyrrhenian Sea. Megabeds are linked to volcanic eruptions. The Marsili megabeds are recorded by thick turbidites to complex and heterogeneous deposits. ABSTRACT Megabeds, also known as ‘megaturbidites,’ are exceptionally large submarine sediment deposits likely formed by catastrophic ...
Faye Higgins, Derek E. Sawyer, Roger Urgeles   +2 more
wiley   +1 more source

Evaluation of Modeled Carbon Monoxide and Methane Columns in the High Arctic Using TCCON Measurements

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 20, 28 October 2025.
Abstract Methane (CH4) and carbon monoxide (CO) are gases with important climate impacts as direct and indirect greenhouse gases, respectively. Methane has a warming potential 28 times that of carbon dioxide on a 100‐year timescale, and carbon monoxide is a precursor to ozone in the troposphere.
Erin McGee, Kimberly Strong, Kaley A. Walker, Cynthia Whaley, Rigel Kivi, Justus Notholt, Gabriel Cassidy, Stephen Beagley, Rong‐You Chien, Srdan Dobricic, Xinyi Dong, Joshua S. Fu, Michael Gauss, Wanmin Gong, Joakim Langner, Kathy S. Law, Louis Marelle, Tatsuo Onishi, Naga Oshima, David A. Plummer, Luca Pozzoli, Jean‐Christophe Raut, Svetlana Tsyro   +22 more
wiley   +1 more source

Characterizing Spatiotemporal Ground Deformation at Whakaari (White Island) Volcano, New Zealand From 2014 to 2024 Using InSAR Time‐Series Analysis

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract Whakaari (White Island) volcano is the most active volcano in New Zealand with a dynamic hydrothermal system. The volcano has had four eruptive periods since 2014. In this study, our aim is to understand the pre‐and post‐eruption deformation processes occurring at Whakaari using interferometric synthetic aperture radar (InSAR).
Shreya Kanakiya, Stella Essenmacher, Arnold Fernandes   +2 more
wiley   +1 more source

RNN‐DAS: A New Deep Learning Approach for Detection and Real‐Time Monitoring of Volcano‐Tectonic Events Using Distributed Acoustic Sensing

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract We present a novel Deep Learning model based on recurrent neural networks (RNNs) with long short‐term memory (LSTM) cells, designed as a real‐time volcano‐seismic signal recognition system for distributed acoustic sensing (DAS) measurements. The model was trained on an extensive database of volcano‐tectonic events derived from the co‐eruptive ...
J. Fernández‐Carabantes, M. Titos, L. D'Auria, J. García, L. García, C. Benítez   +5 more
wiley   +1 more source

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

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

Dynamical tools for the analysis of long term evolution of volcanic tremor at Stromboli

Annals of Geophysics, 1999
Stromboli is characterized by persistent seismic activity, both in terms of tremor and of discrete events associated with moderate explosions defining the so-called "Strombolian activity".
M. Di Cecca, R. Carniel
doaj   +1 more source

Automatic Signal Discrimination Using Machine Learning on the Data From the Central and Eastern European Infrasound Network

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 14, 28 July 2025.
Abstract A labeled data set of 216,681 infrasound detections was compiled using data from the Central and Eastern European Infrasound Network (CEEIN). Detections associated with quarry blasts, thunderstorms, eruptions of the Etna volcano, industrial activity, and the war in Ukraine were categorized using ground truth information, such as seismic and ...
Marcell Pásztor, Tereza Sindelarova, Daniela Ghica, Ulrike Mitterbauer, Oleksandr Liashchuk, Giorgio Lacanna, Maurizio Ripepe, István Bondár   +7 more
wiley   +1 more source

The Effect of Edifice Slope, Failure Surface Geometry, and Magma Intrusion Depth on the Development of Flank Instability at Volcanoes

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 7, July 2025.
Abstract Magmatism is a known driver of flank instability at volcanoes where flank slip has been observed. Studies of instability at Kı̄lauea, Piton de la Fournaise, and Etna imply that long‐term flank motion likely requires the presence of a layer accommodating the sliding, and a force, such as magma intrusion, that promotes slip.
J. Gonzalez‐Santana, C. Wauthier, S. Tung, T. Masterlark   +3 more
wiley   +1 more source