Results 1 to 10 of about 331 (178)

Insights into the sticking probability of volcanic ash particles from laboratory experiments [PDF]

open access: yesScientific Reports, 2023
Although the characterization of the sticking and aggregation probability is essential to the description of volcanic ash dispersal and sedimentation, there is still no general model describing the sticking probability of volcanic ash. Experiments of dry
Carolina Diaz-Vecino   +5 more
doaj   +2 more sources

Dynamics and style transition of a moderate, Vulcanian-driven eruption at Tungurahua (Ecuador) in February 2014: pyroclastic deposits and hazard considerations [PDF]

open access: goldSolid Earth, 2017
The ongoing eruptive cycle of Tungurahua volcano (Ecuador) since 1999 has been characterised by over 15 paroxysmal phases interrupted by periods of relative calm.
J. E. Romero   +6 more
doaj   +3 more sources

Aerodynamic characteristics and genesis of aggregates at Sakurajima Volcano, Japan [PDF]

open access: yesScientific Reports, 2022
Aggregation of volcanic ash is known to significantly impact sedimentation from volcanic plumes. The study of particle aggregates during tephra fallout is crucial to increase our understanding of both ash aggregation and sedimentation.
M. C. Diaz Vecino   +9 more
doaj   +2 more sources

Integrating hazard, exposure, vulnerability and resilience for risk and emergency management in a volcanic context: the ADVISE model [PDF]

open access: yesJournal of Applied Volcanology, 2021
Risk assessments in volcanic contexts are complicated by the multi-hazard nature of both unrest and eruption phases, which frequently occur over a wide range of spatial and temporal scales.
Costanza Bonadonna   +12 more
doaj   +2 more sources

Micro-Textural Controls on Magma Rheology and Vulcanian Explosion Cyclicity

open access: yesFrontiers in Earth Science, 2021
Understanding the relationship between degassing, crystallization processes and eruption style is a central goal in volcanology, in particular how these processes modulate the magnitude and timing of cyclical Vulcanian explosions in intermediate magmas ...
Amelia A. Bain   +9 more
doaj   +1 more source

Dispersal and grain size characteristics of the May 14, 2018 Shinmoedake eruption deposit, Kirishima Volcano, Japan, based on post-eruption field survey and meteorological datasets

open access: yesEarth, Planets and Space, 2023
This study describes the dispersal and grain size characteristics of the May 14, 2018 Shinmoedake eruption deposits of Kirishima Volcano in southern Kyushu, southwestern Japan.
Yasuo Miyabuchi, Eiichi Sato
doaj   +1 more source

Sequence of Volcanic Activity of Sakurajima Volcano, Japan, as Revealed by Non-Eruptive Deflation

open access: yesFrontiers in Earth Science, 2022
Mechanisms that control fluctuation of long-term eruptive activity are not well understood. Since 1955, Sakurajima volcano has experienced repeated Vulcanian eruptions accompanied by deflation.
Masato Iguchi   +2 more
doaj   +1 more source

Long-term change of the eruption activities of Sakurajima volcano, Japan, inferred from the fallout tephra deposits

open access: yesFrontiers in Earth Science, 2022
Stratigraphic analysis of fallout tephra deposits in and around a volcano provides a framework for understanding the long-term temporal change in the volcano’s activities.
Ayumu Nishihara   +3 more
doaj   +1 more source

A re-assessment of historical records pertaining to the activity of Mt. Baekdu (Paektu, Tianchi) volcano

open access: yesGeoscience Letters, 2023
This study re-assesses the historical records pertaining to the activity of Mt. Baekdu according to volcanic phenomena. We categorized volcanic phenomena into five categories: rumbling, atmospheric abnormality, ash rain, ash cloud and phenomenon ...
Sung-Hyo Yun   +3 more
doaj   +1 more source

Eruption style transition during the 2017–2018 eruptive activity at the Shinmoedake volcano, Kirishima, Japan: surface phenomena and eruptive products

open access: yesEarth, Planets and Space, 2023
Recent eruptions of the Shinmoedake volcano, Japan, have provided a valuable opportunity to investigate the transition between explosive and effusive eruptions. In October 2017, phreatic/phreatomagmatic explosions occurred.
Fukashi Maeno   +7 more
doaj   +1 more source

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