Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Minoru Takeo"'
Autor:
Mie Ichihara, Takao Ohminato, Kostas I. Konstantinou, Kazuya Yamakawa, Atsushi Watanabe, Minoru Takeo
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract The accelerating growth of seismic unrest before eruptions has been observed at many volcanoes and utilized for eruption forecasts. However, there are still many eruptions for which no precursory unrest has been identified, even at well-moni
Externí odkaz:
https://doaj.org/article/27610a1bdc054f558dfaaee6115a1840
Autor:
Kiyoshi Baba, Noriko Tada, Hiroshi Ichihara, Yozo Hamano, Hiroko Sugioka, Takao Koyama, Akimichi Takagi, Minoru Takeo
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-11 (2020)
Abstract Nishinoshima is an active oceanic island arc volcano situated approximately 1000 km south of Tokyo, Japan. Since 2016, marine electromagnetic observations using ocean bottom electromagnetometers have been conducted around the island to inves
Externí odkaz:
https://doaj.org/article/77fbd15975934d37a0b7c2f8f4522f9d
Publikováno v:
Earth, Planets and Space, Vol 71, Iss 1, Pp 1-18 (2019)
Abstract Nishinoshima volcano suddenly resumed eruptive activity in April 2017 after about 1.5 years of dormancy since its previous activity in 2013–2015. Nishinoshima is an uninhabited isolated island. We analyzed the eruption sequence and the eru
Externí odkaz:
https://doaj.org/article/9325f0e6568645aca1e984f656f3628a
Autor:
Fukashi Maeno, Atsushi Yasuda, Natsumi Hokanishi, Takayuki Kaneko, Yoshihiko Tamura, Mitsuhiro Yoshimoto, Shun Nakano, Akimichi Takagi, Minoru Takeo, Setsuya Nakada
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
The island-forming Nishinoshima eruptions in the Ogasawara Islands, Japan, provide a rare opportunity to examine how the terrestrial part of Earth’s surface increases via volcanism. Here, the sequence of recent eruptive activity of Nishinoshima is
Externí odkaz:
https://doaj.org/article/88837ce1194a41a799820bfbcbc043eb
Autor:
Masanao Shinohara, Mie Ichihara, Shin’ichi Sakai, Tomoaki Yamada, Minoru Takeo, Hiroko Sugioka, Yutaka Nagaoka, Akimichi Takagi, Taisei Morishita, Tomozo Ono, Azusa Nishizawa
Publikováno v:
Earth, Planets and Space, Vol 69, Iss 1, Pp 1-9 (2017)
Abstract Nishinoshima in Izu-Ogasawara started erupting in November 2013, and the island size increased. Continuous monitoring is important for study of the formation process. Since it is difficult to make continuous observations on a remote uninhabi
Externí odkaz:
https://doaj.org/article/6ecf613042eb41d39092f54917ccc699
Publikováno v:
Geofísica Internacional, Vol 53, Iss 1, Pp 77-85 (2014)
La separación de distintas fuentes existentes en una sola señal sísmica es un problema interesante y al mismo tiempo difícil. En este trabajo presentamos un método semi-ciego para la separación de un solo canal sísmico para mejorar la parte de
Externí odkaz:
https://doaj.org/article/afd438d3d49445f48348eaece9ac32fc
Publikováno v:
Proceedings of the Japan Academy, Series B. 98:416-438
Modern observation systems composed of seismic, geodetic, other geophysical, and geochemical networks developed in and around volcanic areas provide a mass of knowledge about volcanic activities. This paper summarizes the magma pathway and recent vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5a19e94af15885fcc6c94aa45123a3b
https://doi.org/10.2183/pjab.98.022
https://doi.org/10.2183/pjab.98.022
Autor:
Mie Ichihara, Takao Ohminato, Kostas Konstantinou, Kazuya Yamakawa, Atsushi Watanabe, Minoru Takeo
The accelerating growth of seismic unrest before eruptions has been observed at many volcanoes and utilized for eruption forecasts. However, there are still many eruptions for which no precursory unrest has been identified, even at well-monitored vol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::629c8879248a75b3d9d8705458e8fa5f
https://doi.org/10.5194/egusphere-egu23-5226
https://doi.org/10.5194/egusphere-egu23-5226
Autor:
Hiroko Sugioka, Noriko Tada, Takao Koyama, Akimichi Takagi, Yozo Hamano, Kiyoshi Baba, Hiroshi Ichihara, Minoru Takeo
Publikováno v:
Earth, Planets and Space, Vol 72, Iss 1, Pp 1-11 (2020)
Nishinoshima is an active oceanic island arc volcano situated approximately 1000 km south of Tokyo, Japan. Since 2016, marine electromagnetic observations using ocean bottom electromagnetometers have been conducted around the island to investigate th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ea67156f1bbdf2d635291ef57de3734
http://link.springer.com/article/10.1186/s40623-020-01240-z
http://link.springer.com/article/10.1186/s40623-020-01240-z
Publikováno v:
Geophysical Journal International. 217:389-404
Very-long-period (VLP) seismic events at Asama volcano in central Japan are characterized by a transient signal of 10–20 s duration. Associated with the transient motion, a high-frequency (HF) oscillation within the 5–10 Hz band is observed. We i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da7bfd2a74075d06e9ac3e5b49dd02f1
https://doi.org/10.1093/gji/ggz021
https://doi.org/10.1093/gji/ggz021