Results 51 to 60 of about 128,618 (192)

Rainfall‐triggered landslides from the January 2023 1‐in‐200 year storm at Maungakiekie/One Tree Hill, Auckland, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 68, Issue 5, Page 1049-1063, December 2025.
ABSTRACT We describe engineering geological characteristics and failure mechanisms of shallow soil landslides activated on Maungakiekie/One Tree Hill in central Auckland, New Zealand on 27 January 2023. The hill is a scoria cone in the young Auckland Volcanic Field (AVF), and formed ∼60 ka BP.
Gabriel Abazu, Martin S. Brook, Brent Druskovich, Marc‐Andre Brideau, Bruce W. Hayward   +4 more
wiley   +1 more source

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

Long-term volcanic hazard assessment on El Hierro (Canary Islands) [PDF]

, 2014
Long-term hazard assessment, one of the bastions of risk-mitigation programs, is required for land-use planning and for developing emergency plans.
Bartolini, Stefania, Becerril, Laura, Galindo Jiménez, Inés, Martí Molist, Joan, Morales, J.M., Sobradelo, R.   +5 more
core   +2 more sources

Numerically Efficient Model for the Nucleation, Growth, and Coalescence of Bubbles in Magma

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract We present a numerical model to describe the nucleation, growth, and coalescence of bubbles in a decompressed magma. The new model enables us to calculate the bubble size distribution (BSD) at a low computational cost by taking the bubble mass as a variable.
Masatoshi Ohashi
wiley   +1 more source

Self-sustained vibrations in volcanic areas extracted by Independent Component Analysis: a review and new results [PDF]

, 2011
We investigate the physical processes associated with volcanic tremor and explosions. A volcano is a complex system where a fluid source interacts with the solid edifice so generating seismic waves in a regime of low turbulence.
E. De Lauro, M. Falanga, M. Palo, S. De Martino   +3 more
core   +2 more sources

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

Seismic Tomography of a Newborn Volcano

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract On 19 September 2021, in La Palma, Canary Islands (Spain), a new volcano, later named Tajogaite, erupted. We determined the shallow seismic tomography model of Tajogaite Volcano, including the 3D distributions of Vp, Vs, and Vp/Vs. The tomography of the volcanic edifice has been performed using a combination of a three‐component amplitude ...
Sergio Gammaldi, Iván Cabrera‐Pérez, Ivan Koulakov, Luca D’Auria, Graziella Barberi, Rubén García‐Hernández, David Martínez van Dorth, Víctor Ortega‐Ramos, Janire Prudencio, Monika Przeor, Jesús M. Ibáñez   +10 more
wiley   +1 more source

Controls on Water‐Magma Interactions at Hydraulically‐Charged Volcanic Islands

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract The interaction of rising magma with groundwater can produce phreatomagmatic explosions, which, given their enhanced explosivity and unpredictability, increase the hazard potential of volcanic eruptions. To investigate the link between groundwater occurrence and phreatomagmatism, we compare the volcanic record of Flores Island (Azores) with ...
M. Andrade, A. Hernández, A. Pimentel, J. V. Cruz, A. M. Ramos, P. Ludwig, J. C. Schindlbeck‐Belo, R. S. Ramalho   +7 more
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

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