Results 21 to 30 of about 257,872 (307)
Earthquakes in Northern Eurasia, 2019 The results of near real-time monitoring of the active Kamchatka volcanoes are described. Continuous monitoring was carried out using three remote methods: 1) seismic monitoring according to automatic telemetric seismic stations; 2) visual and video observation; 3) satellite observation of the thermal anomalies and the ash clouds.
S. Seniukov, I. Nuzhdina
openaire +1 more source
Magma-Carbonate Interaction at Merapi Volcano, Indonesia
, 2023 Merapi volcano, Indonesia, is a highly active arc volcano built upon a crustal succession that includes thick carbonate sequences. Calc-silicate (skarn) xenoliths are frequently found in Merapi’s erupted products and constitute direct evidence for magma ...
Freda, Carmela, +3 more
core +1 more source
Alaska Volcano Observatory Alert and Forecasting Timeliness: 1989–2017
Frontiers 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
Atmosphere, 2021 Vulcanian eruptions (short-lived explosions consisting of a rising thermal) occur daily in volcanoes around the world. Such small-scale eruptions represent a challenge in numerical modeling due to local-scale effects, such as the volcano’s topography ...
Kosei Takishita +2 more
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Volcanic Thunder From Explosive Eruptions at Bogoslof Volcano, Alaska
Geophysical Research Letters, 2018 Lightning often occurs during ash‐producing eruptive activity, and its detection is now being used in volcano monitoring for rapid alerts. We report on infrasonic and sonic recordings of the related, but previously undocumented, phenomenon of volcanic ...
Matthew M. Haney +5 more
doaj +1 more source
Seismo-Acoustic Characterization of Mount Cleveland Volcano Explosions
Frontiers in Earth Science, 2020 Volcanic explosions can produce large, ash-rich plumes that pose great hazard to aviation, yet may often have few precursory geophysical signals. Mount Cleveland is one of the most active volcanoes in the Aleutian Arc, Alaska (United States) with at ...
Alexandra M. Iezzi +3 more
doaj +1 more source
Magma chamber decompression during explosive caldera-forming eruption of Aira caldera
Communications 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
Coupled subdaily and multiweek cycles during the lava dome eruption of Soufriere Hills Volcano, Montserrat [PDF]
, 2013 Observations of volcanoes extruding andesitic lava to produce lava domes often reveal cyclic behaviour. At Soufriere Hills Volcano, Montserrat, cycles with sub-daily and multi-week periods have been recognised on many occasions.
Costa, A. +12 more
core +1 more source
Uncertainty in Detection of Volcanic Activity Using Infrasound Arrays: Examples From Mt. Etna, Italy
Frontiers in Earth Science, 2020 The injection of gas and pyroclastic material from volcanic vents into the atmosphere is a prolific source of acoustic waves. Infrasound arrays offer efficient, cost-effective, and near real-time solutions to track the rate and intensity of surface ...
Silvio De Angelis +7 more
doaj +1 more source