Results 71 to 80 of about 3,224 (207)

Voluminous Inflated Lobate Flows on the Distal Rift Zones of Axial Seamount, Juan de Fuca Spreading Ridge

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract Three voluminous inflated lobate lava flow complexes on the distal rifts of Axial Seamount are much larger than other known flows in the global spreading system. Each complex is 65–100 km2, is up to 130 m thick, and is ∼3.0–4.6 km3, almost 100 times the volumes of historical Axial flows.
Jennifer B. Paduan, David A. Clague, David W. Caress, Ryan Portner, Morgane Le Saout, Brian Dreyer   +5 more
wiley   +1 more source

Chemistry, Growth, and Fate of the Unique, Short‐Lived (2019–2020) Water Lake at the Summit of Kīlauea Volcano, Hawaii

Geochemistry, Geophysics, Geosystems
Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record—grew to a depth of ∼50 m before lava from the December 2020 eruption boiled it away.
P. A. Nadeau, S. Hurwitz, S. Peek, A. H. Lerner, E. F. Younger, M. R. Patrick, D. E. Damby, R. B. McCleskey, P. J. Kelly   +8 more
doaj   +1 more source

Influence of particle aggregation on the tephra dispersal and sedimentation from the October 8, 2016, eruption of Aso volcano

Earth, Planets and Space, 2020
The phreatomagmatic eruption at Aso volcano on October 8, 2016, released PDC and fallout up to 320 km from the vent, providing an opportunity to study the dispersal and sedimentation of tephra bearing wet and dry aggregates.
Tomohiro Tsuji, Naoki Nishizaka, Kozo Ohnishi   +2 more
doaj   +1 more source

Sequential phreatomagmatic eruptions during the lateral propagation of giant dyke swarms

Geology
Abstract Giant dyke swarms are widely developed on Earth, Venus, and Mars and form by lateral propagation of constituent dykes over hundreds to thousands of kilometers. The failure of these dykes to erupt magma at surface partly accounts for their long-range propagation.
Pryce, E, Cartwright, J, Kirkham, C, Phillips, D   +3 more
openaire   +2 more sources

Field trip to the Ischia resurgent caldera, a journey across an active volcano in the Gulf of Naples [PDF]

, 2018
Ischia is one of the most impressive examples of post-caldera resurgence in the world, with its almost 1,000 m of uplift in less than 30 ka. This three-days field trip will lead the participants through the geological and volcanological history of the ...
Enrica Marotta, Fabio Sansivero, Gian Marco Marmoni, Marta Della Seta, Salvatore Martino, Sandro de Vita   +5 more
core  

The Magmatic‐Hydrothermal System of the Three Sisters Volcanic Cluster, Oregon, Imaged From Field Gravity Measurements

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract From 2019 to 2024, gravity surveys were conducted at the Three Sisters volcanic cluster (TSVC), measuring 246 gravity sites using a spring relative gravimeter. We calculated the residual Bouguer anomaly and identified three main zones with negative anomalies, ranging from −4 to −8 mGal, located southwest and west of South Sister, within an ...
Hélène Le Mével, Nathan L. Andersen, Annika E. Dechert, Josef Dufek   +3 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

Hydroacoustic Observations of the 15 January 2022 Hunga Tonga‐Hunga Ha'apai Eruption: The Role of Bathymetry Along the Path

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract The 15 January 2022 submarine volcanic eruption of Hunga Tonga‐Hunga Ha'apai released immense energy throughout the ocean, solid Earth, and atmosphere. We analyze mid‐oceanic column acoustic pressure recordings from 24 freely drifting Mobile Earthquake Recorder in Marine Areas by Independent Divers sensors, and from 11 moored hydrophones in ...
Joel D. Simon, Frederik J. Simons, Jessica C. E. Irving, Wenbo Wu, Masayuki Obayashi, Yong Yu, Yongshun John Chen, Hiroko Sugioka, Yann Hello   +8 more
wiley   +1 more source

Interactive 3D simulation of Taal Volcano eruption plumes

Applied Computing and Geosciences
The Taal Volcano in the Philippines is one of the most active volcanoes due to its recurrent, sometimes highly destructive eruptions, especially the 12 January 2020 phreatomagmatic eruption classified as VEI=4.
Neil Patrick Del Gallego, Onesimus Dela Torre, Carlos Miguel Arquillo, Vaughn Vincent Cordero, Joaquin Lorenzo Sales, Stephen Lance Yarte   +5 more
doaj   +1 more source

Driving mechanisms of subaerial and subglacial explosive episodes during the 10th century Eldgjá fissure eruption, southern Iceland

Volcanica, 2019
The 10th century Eldgjá fissure eruption is the largest in Iceland in historical time. It erupted 21.0 km3 of magma, with 1.3 km3 as tephra in at least 16 explosive episodes from subaerial and subglacial vents, producing magmatic and phreatomagmatic ...
William Michael Moreland, Thor Thordarson, Bruce F. Houghton, Gudrún Larsen   +3 more
doaj   +1 more source