Results 11 to 20 of about 2,332 (128)

Total mass estimate of the January 23, 2018, phreatic eruption of Kusatsu-Shirane Volcano, central Japan

Earth, Planets and Space, 2021
On January 23, 2018, a small phreatic eruption (VEI = 1) occurred at the Motoshirane Pyroclastic Cone Group in the southern part of Kusatsu-Shirane Volcano in central Japan.
Nobuko Kametani, Yasuo Ishizaki, Mitsuhiro Yoshimoto, Fukashi Maeno, Akihiko Terada, Ryuta Furukawa, Ryo Honda, Yoshihiro Ishizuka, Jiro Komori, Masashi Nagai, Shinji Takarada   +10 more
doaj   +2 more sources

Water sampling using a drone at Yugama crater lake, Kusatsu-Shirane volcano, Japan

Earth, Planets and Space, 2018
Remote sampling of water from Yugama crater lake at Kusatsu-Shirane volcano, Japan, was performed using a drone. Despite the high altitude of over 2000 m above sea level, our simple method was successful in retrieving a 250 mL sample of lake water.
Akihiko Terada, Yuichi Morita, Takeshi Hashimoto, Toshiya Mori, Takeshi Ohba, Muga Yaguchi, Wataru Kanda   +6 more
doaj   +2 more sources

Waveform inversion of the ultra-long-period seismic event associated with ground tilt motion during an eruption of Mount Kusatsu–Shirane, Japan, on January 23, 2018

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, Yuta Maeda, Toshiki Watanabe   +2 more
doaj   +3 more sources

Crisis hazard assessment for snow-related lahars from an unforeseen new vent eruption: the 2018 eruption of Kusatsu-Shirane volcano, Japan

Earth, Planets and Space, 2021
Two-thirds of the 111 active volcanoes in Japan are covered with snow for several months during winter and demonstrate high hazard and risk potentials associated with snow-related lahars during and after eruptions.
Kyoko S. Kataoka, Kae Tsunematsu, Takane Matsumoto, Atsushi Urabe, Katsuhisa Kawashima   +4 more
doaj   +2 more sources

Anatomy of active volcanic edifice at the Kusatsu–Shirane volcano, Japan, by magnetotellurics: hydrothermal implications for volcanic unrests

Earth, Planets and Space, 2020
We aimed to perform three-dimensional imaging of the underlying geothermal system to a depth of 2 km using magnetotellurics (MT) at around the Yugama crater, the Kusatsu–Shirane Volcano, Japan, which is known to have frequent phreatic eruptions.
Kuo Hsuan Tseng, Yasuo Ogawa, Nurhasan, Sabri Bülent Tank, Naoto Ujihara, Yoshimori Honkura, Akihiko Terada, Yoshiya Usui, Wataru Kanda   +8 more
doaj   +2 more sources

Coeruptive and posteruptive crustal deformation associated with the 2018 Kusatsu-Shirane phreatic eruption based on PALSAR-2 time series analysis

Earth, Planets and Space, 2020
Coeruptive deformation helps to interpret physical processes associated with volcanic eruptions. Because phreatic eruptions cause small, localized coeruptive deformation, we sometimes fail to identify plausible deformation signals.
Yuji Himematsu, Taku Ozawa, Yosuke Aoki
doaj   +1 more source

Additional file 2 of Modeling long-term volcanic deformation at Kusatsu-Shirane and Asama volcanoes, Japan, using the GNSS coordinate time series

, 2021
Additional file 2: Figure S2. Corner plot for the MCMC inversion. Corner plot for the MCMC inversion representing the posterior PDF of the estimated parameters. Note that only parameters related to the source positions/geometries are plotted.
Hiroshi Munekane (11582999)
core   +1 more source

Additional file 3 of Modeling long-term volcanic deformation at Kusatsu-Shirane and Asama volcanoes, Japan, using the GNSS coordinate time series

, 2021
Additional file 3: Figure S3. Observed and calculated GNSS coordinate time series at all sites after linear inversion. a, b Observed and calculated GNSS coordinate time series at selected sites after linear inversion.
Hiroshi Munekane (11582999)
core   +1 more source

Quantitative Assessment of Temporal Changes in Subaqueous Hydrothermal Activity in Active Crater Lakes During Unrest Based on a Time-Series of Lake Water Chemistry

Frontiers in Earth Science, 2022
Regular sampling of lake water has been performed at many volcanoes to assess the state of volcanic activity. However, it is not clear whether the absolute concentrations or, instead, rate of changes in concentrations are more suitable for such ...
Akihiko Terada, Muga Yaguchi, Takeshi Ohba   +2 more
doaj   +1 more source

Kusatsu-Shirane volcano eruption on January 23, 2018, observed using JMA operational weather radars

Earth, Planets and Space, 2021
A phreatic eruption suddenly occurred at Motoshirane (Kusatsu-Shirane volcano, Japan) at 10:02 JST on January 23, 2018. A member of the Japan Self-Defense Force was killed by volcanic blocks during training in Motoshirane, and 11 people were injured by ...
Eiichi Sato
doaj   +1 more source