Results 21 to 30 of about 146,104 (239)
Earth, Planets and Space, 2018 The 2015 unrest of the Hakone volcano in Japan, which began on April 26, generated earthquake swarms accompanied by long-term deformation. The earthquake swarm activity reached its maximum in mid-May and gradually calmed down; however, it increased again
R. Honda +5 more
semanticscholar +3 more sources
Seismic Precursors to the Whakaari 2019 Phreatic Eruption detected in Five Other Volcanoes [PDF]
, 2021 Volcanic eruptions that occur without warning can be deadly in touristic and populated areas. Even with real-time geophysical monitoring, forecasting sudden eruptions is difficult because their precursors are hard to recognize and can vary between ...
A. Ardid +3 more
semanticscholar +2 more sources
First detection of precursory ground inflation of a small phreatic eruption by InSAR
Earth and Planetary Science Letters, 2018 Phreatic eruptions are caused by pressurization of geothermal fluid sources at shallow levels. They are relatively small compared to typical magmatic eruptions, but can be very hazardous.
Tomokazu Kobayashi +2 more
semanticscholar +3 more sources
Earth, Planets and Space, 2019 On June 29, 2015, a small phreatic eruption occurred in the most intensively steaming area of Hakone volcano, Japan. A previous magnetotelluric survey for the whole volcano revealed that the eruption center area (ECA) was located near the apex of a bell ...
K. Mannen +7 more
semanticscholar +2 more sources
Short-period volcanic gas precursors to phreatic eruptions: Insights from Poás Volcano, Costa Rica
Earth and Planetary Science Letters, 2016 AbstractVolcanic eruptions involving interaction with water are amongst the most violent and unpredictable geologic phenomena on Earth. Phreatic eruptions are exceptionally difficult to forecast by traditional geophysical techniques. Here we report on short-term precursory variations in gas emissions related to phreatic blasts at Poás volcano, Costa ...
de Moor, J. +8 more
openaire +6 more sources
Earth, Planets and Space, 2018 Although the 2015 Hakone Volcano eruption was a small-scale phreatic eruption with a discharged mass of only about 100 tons, interferometric synthetic aperture radar successfully detected surface deformations related to the eruption.
R. Doke +4 more
semanticscholar +3 more sources
Earth, Planets and Space, 2018 We successfully monitored the ground deformation of an eruption center during the 2015 phreatic eruption of Hakone volcano, Japan, using ground-based interferometric synthetic aperture radar (GB-InSAR).
S. Kuraoka +3 more
semanticscholar +3 more sources
Hazards of volcanic lakes: analysis of Lakes Quilotoa and Cuicocha, Ecuador [PDF]
Advances in Geosciences, 2008 International audienceVolcanic lakes within calderas should be viewed as high-risk systems, and an intensive lake monitoring must be carried out to evaluate the hazard of potential limnic or phreatic-magmatic eruptions.
Beulker, C. +3 more
core +3 more sources
Earth, Planets and Space, 2023 In 2018, a phreatic eruption occurred at Mt. Motoshirane, a pyroclastic cone group of the Kusatsu-Shirane Volcano in central Japan. The eruption was abrupt, and no signs of volcanic activity have been observed in recent years, in contrast to the other ...
Asami Honda +6 more
doaj +1 more source
Geophysical Research Letters, 2021 From June 29 to July 1, 2015, a phreatic eruption occurred in Owakudani, the largest fumarole area in Hakone volcano, Japan. In this study, an interferometric synthetic aperture radar (InSAR) time series analysis of the Advanced Land Observing Satellite ...
R. Doke, K. Mannen, K. Itadera
semanticscholar +1 more source