Results 41 to 50 of about 331 (165)

Exploring the utility of GPR to document the explosive history of old (> 100 ka) scoria cones

Journal of Applied Volcanology
Scoria cones are the most common volcanic landform on Earth. While eruptive styles range from effusive to explosive, the low-energy spectrum of activity is best documented.
Leah Courtland, Vanessa Bump
doaj   +1 more source

An Integrated Geophysical Approach to Track Magma Intrusion: The 2018 Christmas Eve Eruption at Mount Etna

Geophysical Research Letters, 2019
On 24 December 2018, a violent eruption started at Mount Etna from a fissure on the southeastern flank. The intrusive phenomenon, accompanied by intense Strombolian and lava fountain activity, an ash‐rich plume, and lava flows, was marked by significant ...
F. Cannavo', M. Sciotto, A. Cannata, G. Di Grazia   +3 more
doaj   +1 more source

Imaging of Magma Intrusion Below La Palma During a Strong Effusive Eruption in 2021 Inferred From Repeated Seismic Tomography

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract The 2021 eruption of Cumbre Vieja on La Palma, Canary Islands, provided a unique opportunity to investigate the dynamics of magma migration and storage during a large effusive eruption. In this study, we employ repeated seismic tomography to image temporal changes in the subsurface structure beneath La Palma, using body‐wave travel times from ...
Ivan Koulakov, Luca D’Auria, Jesús M. Ibáñez   +2 more
wiley   +1 more source

Temporal and morphological eruption characteristics of lava flows from the Holocene La Taza monogenetic cone obtained from petrology and LiDAR imagery (Michoacán, Mexico)

Volcanica
The Holocene La Taza andesitic volcano is one of over 1000 volcanic centers located within the Michoacán-Guanajuato Volcanic Field (MGVF) in central-western Mexico. La Taza (~8500–8200 yr BP) represents one possible eruption style within the field, with
Geoffrey A Lerner, Claus Siebe, Israel Ramírez-Uribe, Christopher T. Fisher   +3 more
doaj   +1 more source

Craters and Lunar Lua (Pits/Skylights) in Mare Tranquillitatis and Marius Hills Reveal Variations in Protolith Properties

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract We investigated the regolith parent rock (“protolith”) properties of Mare Tranquillitatis and Marius Hills on the Moon, utilizing lunar pit craters (“lua”) to contextualize observations of rock abundance and crater degradation. We discovered a significant difference in underlying materials: the region around the Tranquillitatis lua is ...
E. S. Costello, C. L. Acohido, M. A. Chertok, C. M. Ferrari‐Wong, C. L. Slagle, A. Ito   +5 more
wiley   +1 more source

Statistical Models for Infrasonic Propagation: Application to the Detection Capability of the Global IMS Network

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 24, 28 December 2025.
Abstract The detection capability of the global infrasound International Monitoring System (IMS) deployed to monitor compliance with the Comprehensive Nuclear‐Test‐Ban Treaty is highly variable in space and time. Previous studies estimated the source energy of near‐surface explosions from remote observations using empirical yield‐scaling relations ...
A. Le Pichon, P. Hupe, J. Vergoz, S. Kristoffersen, C. Listowski, E. Marchetti, D. Gheri, L. Ceranna   +7 more
wiley   +1 more source

The Taverna San Felice Dike (NE of Roccamonfina Volcano): Unraveling Magmatic Intrusion Processes and Volcano‐Tectonics in the Tyrrhenian Margin of the Southern Apennines

Geochemistry, Geophysics, Geosystems, 2023
The Roccamonfina volcano is located within the Garigliano Graben (southern Apennines, Italy) and has been active throughout the Middle‐Late Pleistocene.
Jacopo Natale, Stefano Vitale, Guido Giordano, Lorenzo Fedele, Federico Lucci, Alessandro Vona, Ernesto Paolo Prinzi, Francesco D’Assisi Tramparulo, Roberto Isaia, Sabatino Ciarcia   +9 more
doaj   +1 more source

The deep feeding system of Vesuvius involved in recent violent strombolian eruptions

Geophysical Research Letters, 2005
Mt. Vesuvius has experienced a period of semipersistent volcanic activity over the last three centuries, producing mainly lava effusions and some mixed effusive‐explosive eruptions of higher magnitude. We present a systematic study on major and volatile elements of melt inclusions trapped in olivine crystals peculiar to lapilli fallout emplaced during ...
MARIANELLI, PAOLA, SBRANA, ALESSANDRO, MÉTRICH N, CECCHETTI A.   +3 more
openaire   +2 more sources

Facies Characterization and Volcanic Source Assignment of Marine Tephra Deposits Around São Miguel Island, Azores Archipelago

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Long‐term tephrostratigraphies of volcanic islands such as the Azores are often limited to young and incomplete subaerial records. Here, we present a Pleistocene‐Holocene marine tephra archive around the eastern islands of the Azores based on 22 marine gravity cores.
J. C. Schindlbeck‐Belo, M. Andrade, J. Kling, S. Kutterolf, A. Pimentel, E. Lebas, A. Freundt, K. Pank, T. H. Hansteen   +8 more
wiley   +1 more source

Dynamic feeder dyke systems in basaltic volcanoes: the exceptional example of the 1809 Etna eruption (Italy)

Frontiers in Earth Science, 2014
In this paper, we describe the 1809 eruption of Mt. Etna, Italy, which represents one historical and rare case in which it is possible to closely observe the internal structure of the feeder system.
Nobuo eGeshi, Marco eNeri
doaj   +1 more source