Results 1 to 10 of about 68,689 (124)

Monitoring of magmatic–hydrothermal system by noble gas and carbon isotopic compositions of fumarolic gases [PDF]

Scientific Reports, 2022
We repeatedly measured isotopic compositions of noble gases and CO2 in volcanic gases sampled at six fumaroles around the Kusatsu-Shirane volcano (Japan) between 2014 and 2021 to detect variations reflecting recent volcanic activity.
Tomoya Obase, Hirochika Sumino, Kotaro Toyama, Kaori Kawana, Kohei Yamane, Muga Yaguchi, Akihiko Terada, Takeshi Ohba   +7 more
doaj   +2 more sources

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

Aeromagnetic survey in Kusatsu-Shirane volcano, central Japan, by using an unmanned helicopter [PDF]

Earth, Planets and Space, 2021
Kusatsu-Shirane volcano is one of the active volcanoes in Japan. Phreatic explosions occurred in Mt. Shirane in 1983 and most recently, in 2018, in Mt. Motoshirane.
Takao Koyama, Wataru Kanda, Mitsuru Utsugi, Takayuki Kaneko, Takao Ohminato, Atsushi Watanabe, Hiroshi Tsuji, Taro Nishimoto, Alexey Kuvshinov, Yoshiaki Honda   +9 more
doaj   +3 more sources

Oxidation during magma mixing recorded by symplectites at Kusatsu–Shirane Volcano, Central Japan

Earth, Planets and Space, 2020
Kusatsu–Shirane Volcano is an active Quaternary andesitic-to-dacitic volcano located in the Central Japan Arc. We conducted a detailed petrological investigation of orthopyroxene (opx)–magnetite (mt) symplectites associated with olivine in the Sessho ...
Kenta UEKI, Naoya Okamoto
exaly   +3 more sources

Groundwater Interacting at Depth With Hot Plastic Magma Triggers Phreatic Eruptions at Yugama Crater Lake of Kusatsu-Shirane Volcano (Japan)

Frontiers in Earth Science, 2021
Interpreting the triggering mechanisms for phreatic eruptions is a key to improving the hazard assessment of crater lakes. Yugama Crater Lake at Kusatsu-Shirane volcano, Japan, is the site of frequent phreatic eruptions with the recent eruptions in 1982 ...
Akihiko Terada, Muga Yaguchi
exaly   +3 more sources

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

Earth, Planets and Space, 2021
Long-term deformation of Kusatsu-Shirane and Asama volcanoes in central Japan were investigated using Global Navigation Satellite System (GNSS) measurements.
Hiroshi Munekane
doaj   +1 more source

The 2018 phreatic eruption at Mt. Motoshirane of Kusatsu–Shirane volcano, Japan: eruption and intrusion of hydrothermal fluid observed by a borehole tiltmeter network

Earth, Planets and Space, 2021
We estimate the mass and energy budgets for the 2018 phreatic eruption of Mt. Motoshirane on Kusatsu–Shirane volcano, Japan, based on data obtained from a network of eight tiltmeters and weather radar echoes.
Akihiko Terada, Wataru Kanda, Yasuo Ogawa, Taishi Yamada, Mare Yamamoto, Takahiro Ohkura, Hiroshi Aoyama, Tomoki Tsutsui, Shin’ya Onizawa   +8 more
doaj   +1 more source

Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude

Earth, Planets and Space, 2021
Kusatsu-Shirane volcano hosts numerous thermal springs, fumaroles, and the crater lake of Yugama. Hence, it has been a particular study field for hydrothermal systems and phreatic eruptions.
Taishi Yamada, Aika K. Kurokawa, Akihiko Terada, Wataru Kanda, Hideki Ueda, Hiroshi Aoyama, Takahiro Ohkura, Yasuo Ogawa, Toshikazu Tanada   +8 more
doaj   +1 more source

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   +1 more source

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