Results 41 to 50 of about 355 (168)

Source Scaling of Shallow Volcano‐Tectonic Earthquakes at Piton de la Fournaise Volcano (La Réunion, France) Estimated From Codas of Seismograms

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Despite their importance for understanding faulting processes in volcanic environments, the source scaling of volcano‐tectonic earthquakes remains poorly constrained, mainly due to the difficulty of measuring their source parameters. We analyze source parameters such as seismic moments (M0 ${M}_{0}$) and corner frequencies (fc ${f}_{c}$) of ...
Tatiana I. Kartseva, Nikolai M. Shapiro, Zacharie Duputel, Valérie Ferrazzini   +3 more
wiley   +1 more source

Reconstructing the Holocene explosive eruptive history of the Erciyes volcano (Turkey) using proximal and distal tephra records

Journal of Quaternary Science, Volume 41, Issue 4, Page 645-659, May 2026.
ABSTRACT Mount Erciyes, the largest active volcano of Central Anatolia (Turkey), erupted explosively during the Holocene, producing the Karagüllü, Perikartin and Dikkartin tuff rings. Even though major cities like Kayseri and its ~1 million residents sit directly on these pyroclastic deposits, the timing and magnitude of the explosive eruptions have ...
Ivan Sunyé‐Puchol, Rengin Özsoy‐Ünal, Xavier Bolós, Victoria C. Smith, Efe Akkas, Lorenzo Tavazzani, Jan Aymerich, Manuela Nazzari, Pierre Lacan, Victoria Cullen, Olivier Bachmann, Piergiorgio Scarlato, Silvio Mollo   +12 more
wiley   +1 more source

Viscosity of Trachytic Melt Constrained by Integrated Rheological and In Situ Spectroscopic Analyses: Insights From the Agnano‐Monte Spina Eruption (Campi Flegrei, Italy)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Quantifying the viscosity of hydrous volcanic melts is essential for understanding ascent dynamics, degassing efficiency, and fragmentation, yet laboratory measurements may be compromised by syn‐analytical evolution in melt structure at the nanoscale, thus yielding viscosity values not representative of a homogeneous melt phase.
Sumith Abeykoon, Laura Calabrò, Danilo Di Genova, Alexander Kurnosov, Emily C. Bamber, Dmitry Bondar, Pedro Valdivia, Alessandro Vona, Michael R. Carroll, Claudia Romano, Fabio Arzilli   +10 more
wiley   +1 more source

Seismo‐Acoustic Evidence for Meteoric Water Modulation of Hydrothermal Fluid Discharge

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Deciphering the signal of external processes on active hydrothermal dynamics represents a critical challenge in understanding volcanic unrest. At the Pisciarelli hydrothermal site, located within the densely populated Campi Flegrei caldera (Italy), we investigate the role of meteoric water influx in modulating shallow hydrothermal fluid ...
Rebecca Sveva Morelli, Dario Delle Donne, Stefano Caliro, Lucia Nardone, Massimo Orazi, Alessandro Aiuppa, Ciro Buonocunto, Aldo Benincasa, Antonella Bobbio, Antonio Caputo, Prospero De Martino, Sergio Gammaldi, Danilo Galluzzo, Flora Giudicepietro, Francesco Liguoro, Vincenzo Morra, Lucia Pappalardo, Rosario Peluso, Patrizia Ricciolino, Francesco Rufino, Giovanni Scarpato, Maria Grazia Soldovieri, Anna Tramelli, Mauro Antonio Di Vito   +23 more
wiley   +1 more source

Stress Field and Seismicity at Campi Flegrei Caldera [PDF]

, 2016
Aim of this work is the study of the stress field in the Campi Flegrei caldera during the bradyseismic crisis of 1982-1984. n the first part of the work has been analysed old cretaceous and digital seismic datasets relative to 70th years, and the bradyseismic crisis of 1982-1984 where has been recorded the earthquakes linked to uplifts that interested
openaire   +1 more source

Magma storage depths and crustal-upper mantle structure of Campi Flegrei caldera (Southern Italy) unveiled through receiver functions analysis

Scientific Reports
Campi Flegrei is an active caldera in Southern Italy and one of the most hazardous volcanoes in the world. Here, we provide the first comprehensive 3D geophysical image of its plumbing system down to 50 km using the seismic receiver function technique ...
V. Ortega-Ramos, L. D’Auria, J. L. Granja-Bruña, I. Cabrera-Pérez, L. Pappalardo, G. Buono, N. M. Pérez   +6 more
doaj   +1 more source

Anomalous crustal movements with low seismic efficiency - Campi Flegrei, Italy and some examples in Japan

Annals of Geophysics, 2002
Campi Flegrei is a unique volcanic region located near Naples, Italy. Anomalous crustal movements at Pozzuoli in Campi Flegrei have been documented since the Roman period.
A. Nazzaro, I. Yokoyama
doaj   +1 more source

Dynamic Models of Magma Storage Within a Damaging, Strain‐Softening Crust and Their Application to Sierra‐Negra's Pre‐Eruptive Inflation Pattern

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Prior to its 2005 and 2018 eruptions Sierra Negra's caldera displayed decades‐long inflation characterized by successive transient uplifts culminating in accelerating uplifts in the 1–2 years prior to each eruption. These observations motivated the question: can these transient uplifts be explained by internal dynamics of the magma system ...
D. Walwer, P. Lundgren
wiley   +1 more source

Late‐Stage Rift Evolution at Back Arc Basins: Insights From a Tomography Experiment at Orca Volcano, Bransfield Basin

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Back‐arc basins provide insights into the processes governing the evolution of continental rifting to seafloor spreading. The Bransfield basin hosts a back arc rift that is hypothesized to be in the late stages of this transition. Orca volcano is a submarine volcano that lies on the most evolved portion of the rift.
Maleen Kidiwela, William S. D. Wilcock, Dax C. Soule, Javier Almendros   +3 more
wiley   +1 more source

Probabilistic-numerical assessment of pyroclastic current hazard at Campi Flegrei and Naples city: Multi-VEI scenarios as a tool for "full-scale" risk management.

PLoS ONE, 2017
The Campi Flegrei volcanic field (Italy) poses very high risk to the highly urbanized Neapolitan area. Eruptive history was dominated by explosive activity producing pyroclastic currents (hereon PCs; acronym for Pyroclastic Currents) ranging in scale ...
Giuseppe Mastrolorenzo, Danilo M Palladino, Lucia Pappalardo, Sergio Rossano   +3 more
doaj   +1 more source