Results 111 to 120 of about 26,142 (273)

A review of the supercritical state of eruption‐fed volcanic density currents in subaerial and subaqueous settings

Sedimentology, EarlyView.
ABSTRACT Subaerial Pyroclastic Density Currents (PDCs) and Subaqueous Eruption‐Fed Density Currents (SEFDCs) produced during volcanic eruptions can present major hazards to surrounding communities and ecosystems. The bedforms deposited by these volcanic density currents can provide insights into the nature of transport and depositional processes, which
Shannon E. Frey, Martin Jutzeler, Rebecca J. Carey   +2 more
wiley   +1 more source

The impact of volcanic eruption rate on pyroclastic hazard

Communications Earth & Environment
Pyroclastic density currents – fast flows of hot gases, ash, and debris – are some of the most hazardous phenomena associated with explosive volcanic eruptions.
Domenico M. Doronzo
doaj   +1 more source

Long-Term Volcanic Activity at Shiveluch Volcano: Nine Years of ASTER Spaceborne Thermal Infrared Observations

Remote Sensing, 2010
Shiveluch (Kamchatka, Russia) is the most active andesitic volcano of the Kuril-Kamchatka arc, typically exhibiting near-continual high-temperature fumarolic activity and periods of exogenous lava dome emplacement punctuated by discrete large explosive ...
Adam Carter, Michael Ramsey
doaj   +1 more source

Fugitive Junctures: Life‐Seeking, Route‐Finding and the Mobile Ensemble at Kenya's Borders

Transactions of the Institute of British Geographers, EarlyView.
Short Abstract Fugitivity has become an important conceptual frame to understand the illegalised mobilities of contemporary migrants in conjunction with enslaved people's historical lines of flight as spatial praxes to seize their own freedom. Thinking from Kenya, and drawing on research with migrants, border officials, activists, police and smugglers,
Hanno Brankamp
wiley   +1 more source

Understanding the plume dynamics of explosive super-eruptions

Nature Communications, 2018
Super-eruptions such as Toba generate large co-ignimbrite plumes, but their behaviour is not fully understood. Here, the authors show that super-eruption plumes behave differently to Plinian eruptions and can generate over-plumes into the mesosphere ...
Antonio Costa, Yujiro J. Suzuki, Takehiro Koyaguchi   +2 more
doaj   +1 more source

Stratigraphic reconstruction of the Víti breccia at Krafla volcano (Iceland): insights into pre-eruptive conditions priming explosive eruptions in geothermal areas. [PDF]

Bull Volcanol, 2021
Montanaro C, Mortensen AK, Weisenberger TB, Dingwell DB, Scheu B.   +4 more
europepmc   +1 more source

Climatic impact of the A.D. 1783 Asama (Japan) Eruption was minimal: Evidence from the GISP2 Ice Core [PDF]

, 1994
Assessing the climatic impact of the A.D. 1783 eruption of Mt. Asama, Japan, is complicated by the concurrent eruption of Laki, Iceland. Estimates of the stratospheric loading of H2SO4 for the A.D.
Endo, K., Fiacco, R. J., Germani, M. S., Mayewski, Paul A., Meeker, L. David, Twickler, Mark S., Whitlow, Sallie I., Yasui, M., Zielinski, Gregory A.   +8 more
core   +2 more sources

2017 explosive eruption of Kambalny volcano

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017
Первое историческое извержение вулкана Камбальный началось 24 марта 2017 г. с мощной эмиссии пепла из вершинного кратера до 6 км над уровнем моря. По данным тефрохронологии предполагается, что сильные извержения вулкана происходили 200 (?) и 600 лет назад.
O.A. Girina, D.V. Melnikov, A.G. Manevich, A.A. Nuzhdaev   +3 more
openaire   +1 more source

Geology of the Mohon Mountain volcanic field, Yavapai and Mohave Counties, Arizona: A preliminary report [PDF]

Field mapping has produced a preliminary picture of Mohon Mountain as a composite volcano, in which pyroclastic ash and larger tephra erupted alternately with flows of rhyodacite and dacite.
King, John S., Simmons, Ardyth M.
core   +1 more source

Explosive eruption processes inferred from high-frequency seismic waveforms of eruption tremor and explosion events

Geophysical Journal International
SUMMARY We investigated the relation between high-frequency seismic signals and eruption size and duration using seismic data of eruption tremor and explosion events generated during sub-Plinian and Vulcanian eruptions, respectively, at various volcanoes.
Azusa Mori, Hiroyuki Kumagai
openaire   +1 more source