Results 21 to 30 of about 315,759 (374)

Thermally induced convective circulation and precipitation over an isolated volcano [PDF]

open access: yes, 2016
Intense rainfall over active volcanoes is known to trigger dangerous volcanic hazards, from remobilizing loose volcanic surface material into lahars or mudflows to initiating explosive activity including pyroclastic flows at certain dome-forming ...
Matthews, Adrian   +2 more
core   +1 more source

Magma chamber decompression during explosive caldera-forming eruption of Aira caldera

open access: yesCommunications Earth & Environment, 2021
Substantial magma chamber decompression during the early plinian stage of the eruption of Aira volcano, Japan, 30,000 years ago caused intense ground deformation and caldera collapse, according to analyses of water content in quartz ...
Nobuo Geshi   +3 more
doaj   +1 more source

Models of Hawaiian volcano growth and plume structure: Implications of results from the Hawaii Scientific Drilling Project [PDF]

open access: yes, 1996
The shapes of typical Hawaiian volcanoes are simply parameterized, and a relationship is derived for the dependence of lava accumulation rates on volcano volume and volumetric growth rate.
DePaolo, D. J., Stolper, E. M.
core   +1 more source

Prevalence of Seismic Rate Anomalies Preceding Volcanic Eruptions in Alaska

open access: yesFrontiers in Earth Science, 2018
Seismic rate increases often precede eruptions at volcanoes worldwide. However, many eruptions occur without such precursors. Additionally, identifying seismic rate increases near volcanoes with high levels of background seismicity is non-trivial and ...
Jeremy D. Pesicek   +3 more
doaj   +1 more source

Optimization of Network-Based Earthquake Early Warning Systems on the Korean Peninsula

open access: yesIEEE Access, 2022
Most countries and local governments provide earthquake services in the public domain, and they must have high accuracy. If a missed alarm of the Earthquake Early Warning (EEW) system causes many casualties, or if the industrial system is temporarily ...
Seongheum Cho   +2 more
doaj   +1 more source

Radiocarbon dating of Fugendake Volcano in Unzen, SW Japan [PDF]

open access: yes, 2013
This article presents new radiocarbon ages for the lavas, pyroclastic flow, and lahar deposits that originated from the Fugendake and Mayuyama volcanoes of the Younger Unzen Volcano, SW Japan.
Freeman, Stewart P.H.T.   +3 more
core   +1 more source

JIRAM Observations of Volcanic Flux on Io: Distribution and Comparison to Tidal Heat Flow Models [PDF]

open access: yesGeophysical Research Letters, 51, e2023GL105782, 2023
Juno has allowed clear, high-resolution imaging of Io's polar volcanoes using the Jovian Infrared Auroral Mapper (JIRAM) instrument. We have used data from JIRAM's M-band (4.78 um) imager from eleven Juno orbits to construct a global map of volcanic flux.
arxiv   +1 more source

Volcano transition in a solvable model of oscillator glass [PDF]

open access: yesPhys. Rev. Lett. 120, 264102 (2018), 2017
In 1992 a puzzling transition was discovered in simulations of randomly coupled limit-cycle oscillators. This so-called volcano transition has resisted analysis ever since. It was originally conjectured to mark the emergence of an oscillator glass, but here we show it need not.
arxiv   +1 more source

From the volcano effect to banding: a minimal model for bacterial behavioral transitions near chemoattractant sources [PDF]

open access: yes, 2018
Sharp chemoattractant (CA) gradient variations near food sources may give rise to dramatic behavioral changes of bacteria neighboring these sources. For instance, marine bacteria exhibiting run-reverse motility are known to form distinct bands around ...
Jashnsaz, Hossein   +2 more
core   +1 more source

Alaska Volcano Observatory Alert and Forecasting Timeliness: 1989–2017

open access: yesFrontiers in Earth Science, 2018
The Alaska Volcano Observatory (AVO) monitors volcanoes in Alaska and issues notifications and warnings of volcanic unrest and eruption. We evaluate the timeliness and accuracy of eruption forecasts for 53 eruptions at 20 volcanoes, beginning with Mount ...
Cheryl E. Cameron   +5 more
doaj   +1 more source

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