Results 51 to 60 of about 331 (178)

Counterfactual Analysis of Runaway Volcanic Explosions

Frontiers in Earth Science, 2019
“Few, beside the student of such phenomena, will be able to realize what would have resulted from a more concentrated liberation of the accumulating energy if, for instance, instead of being separated into moderate earth movements and gas emissions ...
Willy Aspinall, Willy Aspinall, Gordon Woo   +2 more
doaj   +1 more source

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

The color systematics of volcanic ashfall samples in estimating eruption sequences: a case study of the 2017–2018 eruption at Shinmoe-dake, Kirishima volcano, Southwest Japan

Earth, Planets and Space
The color of pyroclasts is fundamental, because it reflects various magma properties and eruption processes, including particle morphology, chemistry, and petrological characteristics.
Taketo Shimano, Yuki Suzuki, Atsushi Yasuda, Fukashi Maeno, Takahiro Miwa, Masashi Nagai, Setsuya Nakada, Michihiko Nakamura   +7 more
doaj   +1 more source

Ceboruco hazard map: part I - definition of hazard scenarios based on the eruptive history

Journal of Applied Volcanology, 2019
Of the 48 volcanoes in Mexico listed as potentially active by the National Center for Disaster Prevention (CENAPRED), Ceboruco, located in the western Trans-Mexican Volcanic Belt, is considered among the 5 most hazardous.
Katrin Sieron, Dolors Ferres, Claus Siebe, Lucia Capra, Robert Constantinescu, Javier Agustín-Flores, Karime González Zuccolotto, Harald Böhnel, Laura Connor, Charles B. Connor, Gianluca Groppelli   +10 more
doaj   +1 more source

Common processes at unique volcanoes – a volcanological conundrum

Frontiers in Earth Science, 2014
An emerging challenge in modern volcanology is the apparent contradiction between the perception that every volcano is unique, and classification systems based on commonalities among volcano morphology and eruptive style.
Katharine eCashman, Juliet eBiggs
doaj   +1 more source

Enhanced Continental Weathering Contributed to the Termination of the Middle Miocene Climatic Optimum

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract The Middle Miocene Climatic Optimum (MMCO, ca. 17.0 to 14.7 million years (Myr) ago) is a period of global warming that could be relevant to future projections for 2100 AD. However, the mechanism of atmospheric CO2 removal during this interval, particularly, whether silicate weathering is critically involved, is currently unclear.
Jiabin Wu, Licheng Guo, Shangfa Xiong, Shiling Yang, Xiaoxiao Yang, Yu Zhang, Man Zhang, Qiaowen Zhang, Jingyi Cui, Wenying Jiang, Bin Zhang   +10 more
wiley   +1 more source

Transition from magmatic to phreatomagmatic eruptions in Young Ciremai volcano, Indonesia: insights from stratigraphy, componentry, and textural analysis of tephra deposits

Earth, Planets and Space
Vulcanian eruptions, characterized by intermediate magma compositions, pose significant hazards due to their potential for both magmatic and phreatomagmatic fragmentation.
Wildan N. Hamzah, Tsukasa Ohba, Muhammad Andriansyah Gurusinga, Mradipta L. A. Moktikanana, Jananda N. Indriyanto, Takashi Hoshide, Mirzam Abdurrahman, Idham A. Kurniawan, Fadlin   +8 more
doaj   +1 more source

Investigations of the Sinus Aestuum DMD: An Anomalously Large and Compositionally Distinct Lunar Pyroclastic Deposit

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract The Sinus Aestuum (SA) dark mantle deposit (DMD) is a regional pyroclastic deposit on the central lunar near‐side. Spectra from the SA DMD are anomalous when compared to other DMDs and have been interpreted to represent a high abundance of the mineral spinel. The SA spinels are compositionally distinct compared to other lunar spinels and their
Cosmo T. Sikes, Jessica M. Sunshine, Megan E. Newcombe   +2 more
wiley   +1 more source

Deformation and Gravitational Instability at Anak Krakatau (Sunda Strait, Indonesia): Insights From Direct Shear Experiments and Finite‐Element Models

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 5, May 2025.
Abstract Volcanic edifices are known to be unstable and their collapses have been observed several times in history. A collapse of island or coastal volcanoes is especially hazardous for the population living on regional shorelines due to the generation of destructive tsunami waves.
F. Stoepke, M. J. Ikari, A. Hampel, K. Meredew, S. Watt, M. Cassidy, M. Urlaub   +6 more
wiley   +1 more source

Seismic Wavefield Change Preceding the Eruption of Shinmoe‐Dake, Kirishima Volcano, Japan, Inferred From Polarization Analysis

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.
Abstract A volcanic tremor is a seismic event linked to volcanic processes, identified by ongoing ground shaking. They play a crucial role in understanding internal volcanic activities and forecasting eruptions. Detecting weak volcanic tremor signals before an eruption has remained a difficult task.
Takashi Hirose, Hideki Ueda
wiley   +1 more source