Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Noritoshi Okazaki"'
Autor:
T. Mogi, Ryo Takahashi, Makoto Tamura, Ryo Tanaka, Noritoshi Okazaki, Takeshi Hashimoto, Yusuke Yamaya
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-11 (2021)
Subvolcanic hydrothermal systems can lead to hydrothermal eruptions as well as unrest phenomena without an eruptive event. Historical eruptions and recent unrest events, including ground inflation, demagnetization, and a gradual decrease in the plume
Publikováno v:
Geothermics. 105:102496
Autor:
Tsumoru Sagayama, Yasuhiro Takashimizu, Tatsuya Watanabe, Gentaro Kawakami, Atsushi Urabe, Wataru Hirose, Keiichi Hayashi, Sunao Ohtsu, Yoshihiro Kase, Hiroshi Fukami, Ryo Takahashi, Jun Tajika, Noritoshi Okazaki, Satoshi Ishimaru, Ken'ichi Koshimizu, Kenji Nishina
Publikováno v:
The Journal of the Geological Society of Japan. 122:587-602
Publikováno v:
Journal of Volcanology and Geothermal Research. 388:106678
Continuous geochemical monitoring of thermal waters at Tokachidake volcano has been conducted for more than three decades to detect changes in its volcanic activity. Based on the geochemical data from 1986 to 2013, the origin and temporal changes of
Autor:
Teruhiro Yamaguchi, Ryuji Ikeda, Hiroaki Takahashi, Tomo Shibata, Noritoshi Okazaki, Fujio Akita
Publikováno v:
Journal of Volcanology and Geothermal Research. :1-7
We installed and operated a low-cost groundwater level observation system at intermittent hot spring wells in order to monitor volcanic strain signals from the active Meakan-dake volcano in eastern Hokkaido, Japan. Data are sampled at 1 Hz and are tr
Autor:
Hiroaki Takahashi, Noritoshi Okazaki, Ryuji Ikeda, Tomo Shibata, Norio Matsumoto, Fujio Akita
Publikováno v:
Tectonophysics. 483:305-309
The natural fluctuation of groundwater level depends not only on the stress applied to an aquifer but also on the type of rock that comprises it. Poroelastic parameters, such as strain sensitivity, loading efficiency, and poroelastic bulk moduli, are
Publikováno v:
Bulletin of Volcanology. 77
In order to detect changes in volcanic activity of Tokachidake Volcano, Japan, we have continuously monitored thermal waters discharging at the western to southwestern flank of the volcano since 1986. The steam-heated waters in the Nukkakushi crater
Autor:
Noritoshi Okazaki, Shigeru Nakao, Junji Koyama, Yoshinobu Hoso, Takeo Ito, Minoru Kasahara, Hiroaki Takahashi, Yuhki Kohno, Takeshi Iinuma, Yasuyoshi Fujita, Manabu Hashimoto, Takeshi Sagiya, Jun-ichi Fukuda, Kazutoshi Sato, Takeshi Matsushima, Fumio Ohya, Teruyuki Kato
Publikováno v:
Earth, Planets and Space. 56:377-382
To investigate the postseismic crustal deformation associated with the Tokachi-oki earthquake (M JMA = 8.0) of 26 September 2003 in Japan Standard Time (JST), off southeastern Hokkaido, Japan, we newly established thirty GPS sites just after the main
Autor:
Hiroaki Takahashi, Hiromitsu Oshima, Minoru Kasahara, Noritoshi Okazaki, Kenji Nogami, Hiromu Okada
Publikováno v:
Volcanism and Subduction: The Kamchatka Region
We carried out reconnaissance surveys of the magnetic and geothermal fields on Tyatya volcano, Kunashiri Island, southwestern Kuril Islands. Two characteristic features were in the magnetic anomalies: topography dependent ones and locally scattered o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d728433ad0e2e6e15aff9a0fd561f1e
https://doi.org/10.1029/172gm25
https://doi.org/10.1029/172gm25
Autor:
Noritoshi Okazaki, Jun'ichi Miyamura, Satoshi Iwashita, Masayoshi Ichiyanagi, Hiroaki Takahashi, Mitsuhiro Nakagawa, Ryo Takahashi, Minoru Kasahara
Publikováno v:
Geophysical Research Letters. 32
We installed and have been operating a dense GPS array with low power consumption single frequency GPS receivers around Mount Hokkaido-Komagatake volcano, southwestern Hokkaido, Japan, since 2000. Data were collected continuously and analyzed togethe