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Challenges in block-and-ash flow hazard assessment: The July 10–11, 2015 eruption of Volcán de Colima, Mexico J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-03-15 Lucia Capra, Gustavo M. Rodríguez-Liñán, Rafael Torres-Orozco, Víctor Hugo Márquez-Ramírez, Roberto Sulpizio, Raúl Arámbula
On July 10 and 11, 2015, Volcán de Colima, one of the most active Mexican volcanoes, underwent its largest eruption since the 1913 Plinian event. Highly mobile block-and-ash flows (BAF) originated from the dome collapse and subsequent extrusion of bubble gas-rich magma from the conduit. The volume and runout of flows were at least one order of magnitude higher (10 m) than the events observed previously
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Enhancing detection of volcanic ash clouds from space with convolutional neural networks J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-03-05 Federica Torrisi, Claudia Corradino, Simona Cariello, Ciro Del Negro
Volcanic ash cloud detection is a crucial component of volcano monitoring and a valuable tool for investigating ash cloud dispersion, which is paramount for enhancing the safety of human settlements and air traffic. The latest generation of high-resolution satellite sensors (e.g., EUMETSAT MSG Spinning Enhanced Visible and InfraRed Imager, SEVIRI) provides radiometric estimates for monitoring volcanic
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The rheological response of magma to nanolitisation J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-03-01 Luiz Pereira, Yannick Linard, Fabian B. Wadsworth, Jérémie Vasseur, Kai-Uwe Hess, Roberto Moretti, Donald B. Dingwell, Daniel R. Neuville
Viscosity exerts a fundamental control on magmatic kinetics and dynamics, controlling magma ascent, eruptive style, and the emplacement of lava. Nanolites – crystals smaller than a micron – are thought to affect magma viscosity, but the underlying mechanisms for this remain unclear. Here, we use a cylinder compression creep technique to measure the viscosity of supercooled silicate liquids with different
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Okataina Volcanic Centre, New Zealand: Magmatic, volcanological, structural, thermal, and geothermal evolution of an active caldera system—Introduction J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-03-01 Cornel E.J. de Ronde, Ery C. Hughes, Yasuo Ogawa, Michael C. Rowe
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Effects of wind on the stability of explosive eruption plumes J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-28 Tyler Paladino, Shannon Kobs Nawotniak, Bryan Nicholson, Suniti Karunatillake
Explosive volcanic eruptions can produce eruption plumes and pyroclastic density currents that can severely damage life and property. While many factors influence eruption plume stability, including mass eruption rate, grain size distribution, and environmental factors, the role of wind is complicated, with evidence for wind as both a stabilizing and destabilizing factor. Here we use the Active Tracer
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Imaging Pleistocene volcanic edifices along the Egyptian Red Sea margin: Insights from reflection seismics and 3D constrained inversion of gravity and magnetic data J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-27 Moamen Ali, Alessandro Decarlis, Meixia Geng, William Bosworth, Philip J. Ball, Marco Ligi, Andrea Ceriani
Several volcanic buildups have been documented using gravity and magnetic data at specific locations in the Northern Red Sea (NRS). Most of these volcanoes were never sampled, and only a few were imaged by seismic or bathymetry data. Furthermore, the confidentiality of commercial datasets does not allow adequate knowledge of these structures and their morphology and physical properties. In this study
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Glass, crystallinity, and VNIR reflectance from vent to margin at Jordan Craters, OR USA J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-24 Adrianne Reeder, Erika Rader, Janice Bishop
We present an in-situ analysis of the reflectance of Visible Near Infrared (VNIR) and the petrologic texture of the surface of a relatively young lava flow at Jordan Craters, OR. Jordan Craters is a small young basaltic lava field in Oregon, USA which terminates in a lake, providing a wide variety of petrographic textures related to cooling rates and prolonged seasonal exposure to water, post-emplacement
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Explosion mechanism and volume estimation of volcanic ash during the eruption of Sinabung Volcano on February 19, 2018: Insight from kinematic GPS and seismic data J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-23 Estu Kriswati, Irwan Meilano, Mohammad Hasib, Asep Saepuloh, Henri Kuncoro, Bondan Galih Dewanto, Azhar Fuadi
On February 19, 2018, Sinabung Volcano erupted explosively, destroying the lava dome and producing a new crater. This eruption was the largest one since it became active again in 2010. We processed kinematic GPS observation combined with seismic data to analyze the explosion process and calculate the volume change during the deflation stage. The time series from the results of GPS data processing for
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Chemical and 87Sr/86Sr signatures of rainwaters at two active central volcanoes in São Miguel (Azores) – first survey J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-20 L. Ferreira, J. Virgílio Cruz, F. Viveiros, N. Durães, R. Coutinho, C. Andrade, J.F. Santos
Rainwater samples were collected during final of February and early March of 2022, at Furnas and Fogo volcanoes, São Miguel (Azores), both of which display secondary manifestations of volcanism. The major-ion composition reveals that marine aerosols contribute significantly to the chemistry of these rainwaters, showed by the proximity of some samples to the Na/Cl ratio of the seawater. The Sr/Sr ratios
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PROMETHEUS: Probability in the Mediterranean of Tephra dispersal for various grain sizes. A tool for the evaluation of the completeness of the volcanic record in medial-distal archives J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-18 E. Billotta, R. Sulpizio, J. Selva, A. Costa, M. Bebbington
PROMETHEUS is a statistical tool that allows creating maps showing the probability of finding tephra deposits of different grain sizes, originating from eruptions of a specific volcanic source, at any location around the vent. It couples wind profiles at different heights in the Mediterranean area with terminal velocity of volcanic particles. The input parameters include the height of the eruption
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Soil CO2 emission and stable isotopes (δ13C, δ18O) of CO2 and calcites reveal the fluid origin and thermal energy in the supercritical geothermal system of Krafla, Iceland J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-17 Giulio Bini, Giovanni Chiodini, Tullio Ricci, Alessandra Sciarra, Stefano Caliro, Anette K. Mortensen, Marco Martini, Andrew Mitchell, Alessandro Santi, Antonio Costa
The Krafla geothermal system is located within a volcanic center that periodically erupts basaltic lavas, and has recently attracted an economic interest due to supercritical fluids forming near a shallow magma intrusion (∼ 2 km depth). Here, we discuss new soil CO flux and stable isotope data of the CO efflux (δC) and hydrothermal calcites (δC, δO) of drill cuttings to estimate both the current magmatic
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Complex facies architecture of unusual pyroclastic density current deposits at the Rincón de la Vieja Volcano, Costa Rica J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-16 W. Báez, G.E. Alvarado, C.A. Sommer
Pyroclastic Density Currents (PDCs) constitute a complex, multiphase, and multiscale volcanic process generated in a wide spectrum of eruptive scenarios and being among the most deadly and destructive volcanic hazards. Over the north flank of the Rincón de la Vieja Volcano, Costa Rica, previous works identified PDC deposits related to the plinian Río Blanco eruption, which is the largest Holocene explosive
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Regional structural control on the Mont-Dore Plio-Quaternary volcanism (France) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-15 Camille Daffos, Laurent Arbaret, Jean-Louis Bourdier, Charles Gumiaux
Magma transfer in the upper crust including emplacement at the surface of the Earth, have been regarded as largely controlled by the regional tectonic activity. While this relationship is well highlighted for systems like monogenetic, mostly basaltic, volcanic fields, the tectonic control on the transfer and emplacement of magmas in complex, polygenetic, volcanic systems, remains poorly documented
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Textural evidence of fragmentation and densification processes in a fossilised shallow conduit on the flank of Nevados de Chillán Volcanic Complex J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-15 Flavia Rojas, John Browning, Hugh Tuffen, José Cembrano, Javier Espinosa-Leal, Holly E. Unwin, Thomas M. Mitchell, Karin Hofer-Apostolidis, Philip G. Meredith
Eruptive style transitions are common in silicic volcanoes and an improved understanding of transitional controls is necessary for hazard forecasting. Examples of hybrid eruptions where both explosive and effusive eruptive behaviours occur simultaneously have led to a re-examination of models used to understand these complex and poorly understood processes. Exposed fossilised conduits record evidence
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Modelling CO2 dispersion in the air during potential limnic eruption at the lake Pavin (France) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-07 V. Rafflin, G. Boudoire, S. Massaro, M. Stocchi, A. Costa, F. Grassa, G. Giuffrida, L. Gailler, M. Liuzzo, C. Planche, S. Banson, A. Harris
Risk mitigation in long-dormant volcanic provinces is a challenge due to the absence of collective memory of past disasters as well as the scarcity, and subtlety, of unrest signals that can be monitored. In this study, the impact of a potential limnic eruption is assessed at the 92-m-deep lake Pavin (French Massif Central). The lake is hosted in a maar crater formed during the last eruptive event in
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The 2021 eruption of Pacaya Volcano, Guatemala – Geophysical analysis through satellite geodesy and seismic noise correlations J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-07 J. Gonzalez-Santana, C. Wauthier, G. Waite
Pacaya is an active basaltic volcano in Guatemala, that underwent a heightened period of volcanic activity in early 2021, as the culmination of effusive and explosive activity starting in mid-2015. We present an assessment of the geophysical signals associated with this heightened eruptive interval leveraging access to ground deformation data from 9 Synthetic Aperture Radar (SAR) datasets acquired
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Determining the umbrella cloud geometry of unwitnessed silicic explosive eruptions: A case study from Mount Mazama (Oregon, United States) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-05 Joshua Wiejaczka, Thomas Giachetti
Volcanic Ash Transport and Dispersal Models (VATDMs) make real-time forecasts of tephra fall resulting from explosive eruptions possible. However, these predictions still mainly rely on eruption source parameters, such as erupted mass, total grain-size distribution, and plume height, gathered via thorough studies of past eruptions similar in nature. This dependency of eruption source parameters to
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Comments on: “Volcanism in Antarctica: An assessment of the present state of research and future directions” by Geyer et al.: J. Volc. Geother. Res. v. 444, no. 107941 J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-01 Dmitry A. Ruban
The commented review of the volcanological research in Antarctica misses links to geoheritage. Interpretation of Antarctic volcanism in the terms of geoheritage is reasonable both theoretically and practically. This task cannot be left to only specialists in geoconservation and geotourism, and the published geological information is not enough to make geoheritage interpretations. Principally, it is
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Submarine pyroclastic deposits from 7.3 ka caldera-forming Kikai-Akahoya eruption J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-02-01 Satoshi Shimizu, Reina Nakaoka, Nobukazu Seama, Keiko Suzuki-Kamata, Katsuya Kaneko, Koji Kiyosugi, Hikaru Iwamaru, Mamoru Sano, Tetsuo Matsuno, Hiroko Sugioka, Yoshiyuki Tatsumi
Extensive submarine pyroclastic deposits were discovered around the Kikai caldera, Southwest Japan, which originated from the caldera-forming Kikai-Akahoya (K-Ah) eruption that occurred at 7.3 ka. This submarine pyroclastic unit originated from a pyroclastic density current (PDC) that entered the sea and was transformed into a subaqueous density current. Our high-resolution marine seismic reflection
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Near-surface magma reservoir construction, prolonged cold storage, and defrosting as volcano feeder processes: A revealing case study in the Los Árboles pluton, NW Argentina J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-30 P.H. Alasino, S. Rocher, J.A. Dahlquist, S.R. Paterson, M.A. Larrovere, V. Reinoso Carbonell, M.A.S. Basei
Carboniferous plutonic activity in the Sierra Pampeanas region of NW Argentina resulted in the emplacement of several magma bodies at shallow levels, while contemporaneous volcanism was primarily recorded in the neighboring Puna region. One of these plutons, known as Los Árboles in the Sierra de Fiambalá, formed through two periods of significant felsic magma additions (326–322 Ma) and the subsequent
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CO2 budget from a 3D chemical tomography of a degassing volcanic lake (Lagoa das Furnas, São Miguel, Azores) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-24 Giancarlo Tamburello, Dmitri Rouwet, César Andrade, Fátima Viveiros, J. Virgílio Cruz
We here present a 3D mapping of the dissolved CO at Lagoa das Furnas (São Miguel Island, Azores) obtained with an infrared-based probe that measures the partial pressure of CO₂ gas dissolved in liquids, and a multi-parametric probe to measure pH, ORP, conductivity, dissolved O, and temperature. We interpolated the dissolved CO at different depths and around the lake to calculate the total mass of CO
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The Whakamaru magmatic system (Taupō Volcanic Zone, New Zealand), part 2: Evidence from ignimbrite deposits for the pre-eruptive distribution of melt-dominated magma and magma mush J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-20 Lydia J. Harmon, Sarah L. Smithies, Guilherme A.R. Gualda, Darren M. Gravley
The complex volcanology and petrology of the Whakamaru volcanic deposits in Aotearoa New Zealand have thus far obscured the number of eruptive phases and the relative timing of these eruption(s). We investigate pumice clasts from multiple localities to elucidate the relative timing of the eruptions, with a focus on the pre-eruptive conditions of the melt-dominated magma bodies that fed the Whakamaru
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Diffusive emission of carbon dioxide and hydrogen sulfide from Valley of Death, Kamchatka, Russia J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-18 Yuri Taran, Carlo Cardellini, Kirill Tarasov, Nataliya Malik
Valley of Death, discovered almost half a century ago and located in the very upper reaches of the river Geysernaya, about 7 km from the Geyser Valley in Kamchatka, is famous for occurrences of dead animals there. During field work in August 2023, the soil CO flux was measured using the accumulation chamber method in the lower section of the Valley of Death. On an area of 6.2 × 10 m, the flux was measured
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Compositional variations in shield-stage volcanism in Fogo, Cape Verde islands J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-11 Brendon Rolfe-Betts, Simon J. Day, Hilary Downes, Ian Millar, Kristina Palubicki
The intraplate oceanic island of Fogo (Cape Verde islands) is in the shield-stage of its evolution. It experienced a major lateral collapse ca. 70 ka ago, after which a sequence of lavas about 2 km thick infilled the collapse scar, with eruptions continuing to the present day. Nearly 100 lavas from before and after the collapse have been sampled and analysed for bulk rock compositions. These lavas
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The Alaska Makushin Volcano 2016–2018 inflation and its potential relation to the 2020 earthquake swarm, from GNSS observations J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-10 Yitian Cheng, Ronni Grapenthin
Makushin volcano on Unalaska Island along the Aleutian Chain in Alaska experienced a period of unrest from 2016 to 2020, including 2016–2018 surface inflation observed by 5 continuous Global Navigation Satellite System stations, and an earthquake swarm in the second half of 2020 consisting of hundreds of earthquakes, including two greater than M4. A Bayesian inversion of the geodetic data applied to
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New evidence of the Green Tuff deposits and post-caldera, recent explosive volcanic activity at Pantelleria volcano (Sicily Channel, Italy) recorded in near-vent marine areas J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-02 C. Romagnoli, C. Giglio, A.M. Conte, A. Cloke-Hayes, M. Garcia, G. Gasparotto, S. Benetti
The record of the explosive activity of Pantelleria volcano is well documented by several distal tephra collected in various areas in and around the Mediterranean, while few tephrochronological studies exist on proximal marine areas. In this paper, we investigate three selected coring sites from the northern shoulder of the Pantelleria graben, about 15–30 km from the island, in near-vent position with
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The shear wave splitting technique as a methodology to retrieve temporary variations of induced stress J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-03 F. Chacón-Hernández
Shear wave splitting studies have represented a good methodology to characterize anisotropic structures both in volcanic and tectonic environments from the analysis of regional and local seismic sources. In contrast, observations due to stress-induced and temporally varying anisotropy (here called TEV) have been more difficult to ensure without doubting that the anisotropic effects could be due to
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Tracking seismicity in an underfunded institution: The case of La Soufrière St Vincent volcanic eruption 2020–2021 J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2024-01-01 Rodrigo Contreras-Arratia, Bernard Chouet, Corentin Caudron, Nisha Nath, Amit Balchan, Farrah Madoo, Hannah Ramsingh-Reddock
An unusual volcanic transition was recorded at La Soufrière Volcano in the Lesser Antilles during the 2020–2021 eruptive episode. Initial activity was an effusive phase that lasted three months and turned explosive on 9 April 2021. Although the transition was recognised when it occurred and people were timely evacuated thanks to the detection of subtle geophysical patterns, this work attempts to extract
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CatVolc: A new database of geochemical and geochronological data of volcanic-related materials from the Catalan Volcanic Zone (Spain) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-31 Martín Miranda-Muruzábal, Adelina Geyer, Meritxell Aulinas, Helena Albert, Miquel Vilà, Fus Micheo, Xavier Bolós, Dario Pedrazzi, Guillem Gisbert, Llorenç Planagumà
The Catalan Volcanic Zone (CVZ) (NE Spain) consists of an intraplate alkaline volcanic zone associated with the opening of the Western Mediterranean and the development of the European Rift System. Volcanic activity in the CVZ started in the L'Empordà area (ca. > 12–8 Ma), extended to La Selva (7.9–1.7 Ma), and finally migrated to the Garrotxa Volcanic Field (< 0.7–0.01 Ma). Despite the scientific
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Evolution of a large Quaternary monogenetic field; the multifaceted volcanism of the Serdán-oriental basin, México J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-30 Jaime Alberto Cavazos-Alvarez, Gerardo Carrasco-Núñez, Giovanni Sosa-Ceballos, Federico Lucci
The intermontane Serdán-Oriental basin (SOB), located in the Trans-Mexican Volcanic Belt, records a highly contrasting volcanic field with nearly 166 monogenetic volcanoes, including cones, maars, tuff rings, domes, and lava flows, with basaltic to rhyolitic compositions and from effusive to explosive, and magmatic to phreatomagmatic eruptive styles. Even when this volcanic field has been the focus
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Confocal Scanning Laser Microscopic (CSLM) characterization of volcanic rocks J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-29 Daniel Weller, Mathieu Colombier, Francisco Cáceres, Jérémie Vasseur, Donald B. Dingwell, Bettina Scheu
Optical and microscopical analyses of surficial and internal textures are key elements of volcanic rock characterization. Yet conventional methods for textural analyses often pose challenges and difficulties in terms of sample preparation and/or time and resources consumption, beside their inherent limitations. Here, we performed Confocal Scanning Laser Microscopy (CSLM) to characterize vesicles in
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Seismic monitoring of gas emissions at mud volcanoes: The case of Nirano (northern Italy) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-28 N. Carfagna, A. Brindisi, E. Paolucci, D. Albarello
Seismic signals generated at the Nirano mud volcanoes in Northern Italy have been monitored by deploying a set of small dimensions seismic arrays of vertical geophones and thee-directional sensors. During two seismic surveys campaigns, seismic signals characterized by sequences of short impulsive signals (lasting 0.1 s–0.2 s) were identified above the background seismic noise. The respective seismic
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Evolution of shallow volcanic seismicity in the hydrothermal system of La Soufrière de Guadeloupe following the April 2018 Mlv 4.1 earthquake J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-28 Laëtitia Pantobe, Arnaud Burtin, Kristel Chanard, Jean-Christophe Komorowski
La Soufrière de Guadeloupe volcano is characterized by seismo-volcanic activity dominantly linked to an active hydrothermal system. This microseismicity is shallow, mainly triggered in swarms and characterized by repeating earthquakes. Four recurrent families of Volcano-Tectonic (VT) repeaters have been identified and the main repeater accounts for 80% of detections. Stacking repeating seismic waveforms
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The Cerro Guacha Caldera complex, SW Bolivia: A long-lived, multicyclic, resurgent caldera complex in the Altiplano-Puna Volcanic Complex of the Central Andes J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-28 A. Rodrigo Iriarte I, Shanaka L. de Silva, Axel K. Schmitt, Néstor Jiménez Ch
Measuring ∼50 × 30 km, the Cerro Guacha Caldera Complex (CGCC) is a polycyclic, nested caldera complex within the Altiplano Puna Volcanic Complex (APVC) of the Central Andes. Previous work had established that CGCC was built in three stages. Catastrophic supereruptions of the 1300 km3 (DRE - Dense Rock Equivalent) Guacha ignimbrite at ca. 5.65 Ma and the 800 km3 (DRE) Tara ignimbrite at ca. 3.49 Ma
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Corrigendum to “Volcanic debris avalanche deposits and their significance in the architecture and evolution of the Miocene-Quaternary Călimani-Gurghiu-Harghita volcanic range (Eastern Transylvania, Romania)” [Journal of Volcanology and Geothermal Research 443 (2023) 107932] J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-25 Ioan Seghedi, Alexandru Szakács, Viorel Mirea, Zoltán Pécskay, Péter Luffi
Abstract not available
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Hydrothermal fluid circulation within the restless structural frame of Hasandağ volcanic system (Central Anatolia, Türkiye) inferred from Self-potential, CO2, and temperature measurements J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-25 Caner Diker, İnan Ulusoy, Efe Akkaş, Erdal Şen, Eda Aydın, Erdal Gümüş, Volkan Erkut, H. Evren Çubukçu, Onat Başar, Mehmet Çolak, Ömür Bolat
Hasandağ is an active composite volcanic system located in the Central Anatolian Volcanic Province (CAVP). A comprehensive field survey was conducted to reveal the hydrothermal activity within the Hasandağ volcanic system, with particular emphasis on Self-Potential (SP) mapping. The Hasandağ system is characterised by the presence of twin stratovolcanoes that arise from pre-existing partially buried
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A source-to-surface model of heat and fluid transport in the Taupō Rift, New Zealand J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-25 W.M. Kissling, S. Ellis, S.J. Barker, T.G. Caldwell
We construct 2-D numerical models of bulk heat and water transport from the mid-crust (10 km depth) to the surface in a 20 km-wide continental rift, based on observations from the Taupō Rift in the central Taupō Volcanic Zone (TVZ) of New Zealand. The model represents a simplified geological setting with two low-permeability basement-like rock-types, the first defining the margins of the rift and the
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Evolution of the magma system at Makushin volcano, Alaska, from 2004 to 2021 J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-21 Jiahui Wang, Zhong Lu, Patricia M. Gregg, Jin-Woo Kim
Located in the northeast of Unalaska Island in the central part of the Aleutian, Alaska, Makushin volcano is one of the more active volcanoes in the United States, with the most recent eruption occurred in 1995. Pre-eruptive inflation and post-eruptive deflation were identified from 1993 to 1995 and 1996 to 2000, respectively, and were interpreted as volume changes associated with magma movement within
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SO2 emissions from the Timanfaya eruption (1730–36 CE), Lanzarote, Canary Islands J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-12 Kirti Sharma, Stephen Blake, Stephen Self
The 1730–36 CE eruption of Lanzarote (Canary Islands) is the third largest basaltic fissure eruption known to have occurred in the last 1000 years, after the Icelandic events of Laki (1783–84 CE) and Eldgja (939 CE). Approximately 5.2 km3 (1.1 × 1012 kg) of alkalic basalt (sensu lato) lava and pyroclastic rocks were emplaced on land, with a further unknown amount entering the sea, The activity occurred
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Seismicity near Mayotte explained by interacting magma bodies: Insights from numerical modeling J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-16 Clément de Sagazan, Lise Retailleau, Muriel Gerbault, Aline Peltier, Nathalie Feuillet, Fabrice J. Fontaine, Wayne C. Crawford
Mayotte island experienced a large volcanic eruption 50 km offshore in 2018–2021, creating the submarine volcano “Fani Maoré”. The eruption was accompanied by intense seismicity at mantle depths (20–45 km), divided into a “proximal” and a “distal” cluster centered 10 and 30 km east from the island, respectively. Previous studies suggest that two separate magma reservoirs may lie at the top and bottom
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Stratigraphy and eruptive history of Gedemsa caldera volcano, Central Main Ethiopian Rift J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-15 Gemechu Bedassa, Dereje Ayalew, Worash Getaneh, Karen Fontijn, Luelseged Emishaw, Abate A. Melaku, Amdemichael Z. Tadesse, Zelalem S. Demissie, Andrew Swindle, Katy J. Chamberlain
Gedemsa caldera is a peralkaline volcanic depression located in the Central sector of the Main Ethiopian Rift. An integrated volcanological study of stratigraphic sections was carried out in order to constrain the eruptive history of Gedemsa caldera volcano (GCV), Ethiopia. Textural analyses on plagioclase crystals together with field observations shed light on magma chamber processes feeding the volcanic
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Radiocarbon dating, magnitude, and catastrophic impact of Popocatépetl's Terminal Preclassic “Lorenzo pumice” Plinian eruption and paleomagnetic age constraints on the Nealtican lava flow field (central Mexico) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-07 Claus Siebe, Israel Ramírez-Uribe, José Luis Macías, Harald Böhnel
The “Lorenzo pumice” (LP) fallout was produced by a Plinian (VEI = 4) eruption of Popocatépetl volcano ∼40 cal BCE during the Terminal Preclassic period. It is part of a pyroclastic sequence that consists in stratigraphic order of fall, pyroclastic density current, and lahar deposits, which in turn are partly covered by the 70 km2 andesitic-dacitic “Pedregal de Nealtican” lava flow field on the eastern
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OIB-like magma genesis at the modern Chiapanecan Volcanic Arc, southern Mexico J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-02 J.L. Arce, I. Martínez-López, M. Parolari, J.L. Macías, A. Vasquez-Serrano, D.J. Morán-Zenteno, P. Schaaf
The Chapultenango trachybasalt, located in the modern Chiapanecan Volcanic Arc (CVA) in southern Mexico, is constituted by two mafic dykes. Dyke 1 shows relatively low Th/Nb and Pb/Nb ratios compared to other CVA rocks, and exhibits primitive chemical characteristics (e.g. #Mg >65, Ni > 200, Cr > 600) typical of Ocean Island Basalts (OIB). On the other hand, Dyke 2 is almost in touch with Dyke 1, is
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Learning feature representations from unlabeled data for volcano-seismic event classification J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-12-01 Diego Ríos, Carla Parra, Felipe Grijalva, Diego Benítez, Noel Pérez, Karen Rosero, Nathaly Orozco
Accurately identifying and labeling seismic events is essential for understanding the internal dynamics of volcanoes and predicting volcanic eruptions. However, the manual labeling of seismic events is a labor-intensive and resource-demanding process that requires the expertise of highly skilled vulcanologist professionals. Unsupervised learning approaches provide an alternative solution by automatically
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Remobilization and eruption of an upper crustal cumulate mush at the Singkut caldera (North Sumatra, Indonesia) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-29 Francesca Forni, Marcus Phua, Olivier Bernard, Maria Giuditta Fellin, Jeffrey Oalmann, Colin Maden, Hamdi Rifai, Caroline Bouvet de Maisonneuve
Understanding the conditions and timescales of storage and remobilization of magma bodies in the upper crust is key to interpreting the signals of potential reawakening at active volcanoes. In this paper, we provide the first volcanological and petrochronological characterization of the Singkut caldera, a young volcanic system located in northern Sumatra (Indonesia), in close proximity to Medan, one
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Magma storage conditions over the past 4 Ma on Martinique Island, Lesser Antilles J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-25 Abigail Martens, Aurelie Germa, Zachary D. Atlas, Sylvain Charbonnier, Xavier Quidelleur
We constrain, for the first time, the storage conditions beneath recent (<5 Ma) volcanic edifices in Martinique Island, combining petrography, geochemistry, and thermobarometry. Specifically, we investigate Morne Jacob volcano (5.2–1.5 Ma), Pitons du Carbet complex (998 ka – 322 ka), Trois Îlets Volcanic field (2.35 Ma – 346 ka), and Mt. Conil – Mt. Pelée system (<550 ka). Lava samples range in composition
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Infrared spectroscopy as a tool for hydrothermal alteration mineral analysis to support geothermal reservoir characterization at The Geysers, California, USA J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-23 Kurt O. Kraal, Bridget F. Ayling, Stephen DeOreo, Wendy M. Calvin
Infrared reflectance spectroscopy (IRS), an analytical method for characterizing geologic materials, is becoming more commonly applied to geothermal energy applications. However, few case studies are available in the literature and are restricted to relatively few volcanic/geologic environments. We present an interpretation of reservoir mineralogy using IRS on drill cuttings from an active magmatic-heat-sourced
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Structure of shallow magma sources beneath Augustine Volcano (Alaska) inferred from local earthquake tomography J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-17 Ivan Koulakov, Saleh Ismail Qaysi, Pavel Izbekov, Brandon L. Browne
Augustine is an active stratovolcano occupying almost entirely a small island in the Cook Inlet in Alaska. In this study, we use the arrival time data from local seismicity recorded by 15 permanent seismic stations deployed on the flanks of Augustine Volcano by the Alaska Volcano Observatory and invert them by the body wave local earthquake tomography. The resulting model includes the 3D distributions
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The Whakamaru magmatic system (Taupō Volcanic Zone, New Zealand), part 1: Evidence from tephra deposits for the eruption of multiple magma types through time J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-20 Lydia J. Harmon, Guilherme A.R. Gualda, Darren M. Gravley, Sarah L. Smithies, Chad D. Deering
The Whakamaru group eruptions (349 ± 4 ka; Downs et al., 2014) are the largest known eruptions in the history of the young Taupō Volcanic Zone, Aotearoa New Zealand. The complex field relationships of the ignimbrites have thus far obscured the timing and history of their eruption(s). We present new evidence from fall deposits correlated with the Whakamaru eruptions to complement the ignimbrite record
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Chemistry and petrography of early 19th century basaltic andesites and basalts from the Kamakaiʻa Hills in the Southwest Rift Zone of Kīlauea volcano, Hawaiʻi J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-14 Drew T. Downs, May Sas, Richard W. Hazlett
Kīlauea is a frequently active, open-system volcano on the Island of Hawaiʻi known for erupting olivine-dominated tholeiitic basalt compositions. On rare occasions it erupts more differentiated magmas (<1% of erupted volume), such as basaltic andesites and andesites, from its rift zones. These differentiated magmas offer an opportunity to understand better the petrology, magma storage, magma mixing
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The effect of fault systems on volcanic activity: Insights from the subduction-related, Quaternary Villamaría-Termales monogenetic volcanic field in Colombia J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-17 Luis Alvaro Botero-Gómez, Hugo Murcia, Gustavo Hincapié-Jaramillo
Structural control of volcanic activity is a topic of great significance around volcanic fields, mostly associated with risk management near cities. Structural geology provides valuable information for understanding the magmatic processes associated with the rise of magma and the presence of volcanoes. The Villamaría-Termales Monogenetic Volcanic Field (VTMVF) is a group of Quaternary monogenetic volcanoes
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Geostatistical multitemporal InSAR method and elastic deformation model for detailed characterizations of topographic change and magma reservoirs: Application to the Tangkuban Parahu Volcano, Indonesia J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-15 Panggea Ghiyats Sabrian, Asep Saepuloh, Katsuaki Koike, Muhammad Rizqy Septyandy, Heru Berian Pratama, Estu Kriswati, Nia Haerani
This study proposes the entire detection of the surface deformation of a volcanic area using interferometric synthetic aperture radar (InSAR) with geostatistics to specify the locations and shapes of the sources causing the deformation. We selected the Tangkuban Parahu area, West Java, Indonesia, as our study site and used a Sentinel-1 dataset. In this study, we combine persistent scatterer and small
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What controls the formation of vulcanian bombs? A case study from the 1 February 2014 eruption of Tungurahua (Ecuador) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-10 Alessia Falasconi, Raffaello Cioni, Benjamin Bernard, Pablo Samaniego, Marco Pistolesi, Federica Schiavi
Vulcanian eruptions are very common at many volcanoes around the world that erupt intermediate to silicic magmas. This type of eruption generates a wide variability of bombs and blocks preserving information onto the conduit processes that strongly control the dynamics of these events. After 84 years of repose, a new cycle of eruptive activity of Tungurahua volcano (Ecuador) started in October 1999
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Leaching tests reveal fast aluminum fluoride release from ashfall accumulated in La Palma (Canary Islands, Spain) after the 2021 Tajogaite eruption J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-07 J. Sánchez-España, M. Pilar Mata, J. Vegas, G. Lozano, J. Mediato, J. Martínez Martínez, I. Galindo, N. Sánchez, B. del Moral, B. Ordóñez, A. de Vergara, A. Nieto, M. Andrés, I. Vázquez, E. Bellido, M. Castillo-Carrión
Leaching tests conducted on fresh ashfall samples taken soon after the onset of the 2021 Tajogaite eruption occurred at the Northwest flank of the Cumbre Vieja Volcanic Ridge in La Palma (Canary Islands) have revealed relevant geochemical trends which have important environmental significance and practical implications. The ashfall deposited on most of the island during the eruptive episode (9/19/2021–12/13/2021)
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Lithostratigraphy of the ignimbrite-dominated Miocene Bükk Foreland Volcanic Area (Central Europe) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-11 Mátyás Hencz, Tamás Biró, Károly Németh, Alexandru Szakács, Maxim Portnyagin, Zoltán Cseri, Zoltán Pécskay, Csaba Szabó, Samuel Müller, Dávid Karátson
This study documents the volcanic evolution of the Miocene silicic Bükk Foreland Volcanic Area (BFVA), Northern Hungary (Central Europe) at an event-scale. The BFVA is a deeply eroded and dissected volcanic field dominated by multiple, several 10-m thick, valley-filling silicic ignimbrite units, which are chemically and texturally very similar to each other. Hence, establishing lateral correlation
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Tectonic-magmatic-hydrothermal interactions in a hot dry rock geothermal system: The role of the transfer and normal faults in the Acoculco caldera (Mexico) J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-10 Domenico Liotta, Andrea Brogi, Walter H. Wheeler, Eivind Bastensen, Victor Hugo Garduño-Monroy, José Luis Macias, Giovanni Sosa-Ceballos, Antonio Pola, Denis-Ramón Avellán, Caterina Bianco, Emmanuel Olvera-Garcia, Fidel Gómez-Alvarez, Isabel Israde-Alcantara, Adrian Jiménez-Haro, Luigi Piccardi, Martina Zucchi
In the Acoculco caldera (hot dry rock system) two geothermal boreholes were planned to intersect fracture systems in the carbonate basement. Even though the caldera is located in an area of active deformation with high rainfall, a scarce permeability was recognized. To shed light on this apparent mismatch, we investigate the area by integrating a structural and kinematic dataset on faults and fractures
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Monogenetic volcanoes as windows into transcrustal mush: A case study of Slamet and Loyang volcanoes, Central Java J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-10 Nicholas D. Barber, Sophie L. Baldwin, Marie Edmonds, Felix O. Boschetty, Haryo Edi Wibowo, Agung Harijoko
Monogenetic volcanic fields (MVFs) are commonly associated with long-lived polygenetic composite volcanoes in many tectonic settings. The association between polygenetic and monogenetic volcanoes has raised questions as to the source of melts feeding monogenetic volcanoes – specifically, whether they are derived from the transcrustal mush underlying a nearby polygenetic volcano, or from a batch of
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Formation of Billowed Structures Along Margins of Basaltic Intrusions: Insights from Big Bend National Park, Texas and 71 Gulch, Idaho J. Volcanol. Geotherm. Res. (IF 2.9) Pub Date : 2023-11-10 Aaron J. Galletly, Alison H. Graettinger, Richard E. Hanson
Billowed margins of basaltic intrusions provide opportunity to study the conditions of non-explosive magma-pore water interactions and how magma propagates and interacts with unconsolidated sediment in the subsurface. Basaltic intrusions exhibiting billowed structures that formed at different paleodepths in Big Bend National Park, Texas (200–500 m) and 71 Gulch, Idaho (≤24 m) have been examined and