Results 51 to 60 of about 778 (148)

Monitoring lava lake fluctuations and crater refilling with continuous laser rangefinders

open access: yesJournal of Applied Volcanology
The U.S. Geological Survey’s Hawaiian Volcano Observatory (HVO) has developed a new method to continuously monitor lava lake elevations. Since 2018, HVO has stationed a laser rangefinder on Kīlauea’s caldera rim.
E. F. Younger, W. Tollett, M. R. Patrick
doaj   +1 more source

Machine Learning Reveals the Seismic Signature of Eruptive Behavior at Piton de la Fournaise Volcano [PDF]

open access: yes, 2019
Volcanic tremor is key to our understanding of active magmatic systems but, due to its complexity, there is still a debate concerning its origins and how it can be used to characterize eruptive dynamics. In this study we leverage machine learning (ML) techniques using 6 years of continuous seismic data from the Piton de la Fournaise volcano (La R ...
arxiv   +1 more source

USGS and social media user dialogue and sentiment during the 2018 eruption of Kīlauea Volcano, Hawai‘i

open access: yesFrontiers in Communication
Responsive and empathic communication by scientists is critical for building trust and engagement with communities, which, in turn, promotes receptiveness toward authoritative hazard information during times of crisis.
Robert T. Goldman   +3 more
doaj   +1 more source

Volcanoes muon imaging using Cherenkov telescopes [PDF]

open access: yes, 2015
A detailed understanding of a volcano inner structure is one of the key-points for the volcanic hazards evaluation. To this aim, in the last decade, geophysical radiography techniques using cosmic muon particles have been proposed. By measuring the differential attenuation of the muon flux as a function of the amount of rock crossed along different ...
arxiv   +1 more source

Detecting Volcano Deformation in InSAR using Deep learning [PDF]

open access: yesarXiv, 2018
Globally 800 million people live within 100 km of a volcano and currently 1500 volcanoes are considered active, but half of these have no ground-based monitoring. Alternatively, satellite radar (InSAR) can be employed to observe volcanic ground deformation, which has shown a significant statistical link to eruptions.
arxiv  

On the origin of Mount Etna eruptive cycles and Stromboli volcano paroxysms: implications for an alternative mechanism of volcanic eruption [PDF]

open access: yesarXiv, 2014
New mechanism of imbalance between magma column and fluid volume, accumulated in the magmatic system, is considered as a driving force of the volcanic eruption. Conditions of eruption based on this mechanism are used to explain main features of the volcanic activity (eruptive cycles and paroxysms) of the volcanoes Etna and Stromboli (Italy).
arxiv  

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