Results 21 to 30 of about 242,577 (288)
Remote Sensing, 2019 Most of the world’s 1500 active volcanoes are not instrumentally monitored, resulting in deadly eruptions which can occur without observation of precursory activity.
S. Valade +8 more
semanticscholar +1 more source
Optimization of Network-Based Earthquake Early Warning Systems on the Korean Peninsula
IEEE 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
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
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
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
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
Geophysical Research Letters, 2019 We investigate the 24–27 December 2018 eruption of Mount Etna occurred from fissures located on the volcano eastern flank and accompanied by a seismic swarm, which was triggered by the magma intrusion and continued for weeks after the end of the eruption.
V. De Novellis +17 more
semanticscholar +1 more source
Earth, Planets and Space, 2022 We conducted waveform inversions of an ultra-long-period (~ 240-s) event associated with the phreatic eruption of Mount Kusatsu–Shirane on January 23, 2018. We used broadband seismic and tilt records from three stations surrounding the eruption site. The
Ryohei Takahashi +2 more
doaj +1 more source
First muography of Stromboli volcano
Scientific Reports, 2019 Muography consists in observing the differential absorption of muons – elementary particles produced through cosmic-ray interactions in the Earth atmosphere – going through the volcano and can attain a spatial resolution of tens of meters.
V. Tioukov +17 more
semanticscholar +1 more source