Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Masatake HARADA"'
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-20 (2021)
Abstract A model for coseismic groundwater level increase is presented for understanding hydrological responses of wells to seismic waves. Three types of coseismic groundwater level changes were observed in six wells 300–500 m in depth, operated by
Externí odkaz:
https://doaj.org/article/90239c6b98e9469bb6d62ad2c246152d
Autor:
Kazutaka Mannen, Yuki Abe, Yasushi Daita, Ryosuke Doke, Masatake Harada, George Kikugawa, Naoki Honma, Yuji Miyashita, Yohei Yukutake
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-15 (2021)
Abstract Since the beginning of the twenty-first century, volcanic unrest has occurred every 2–5 years at Hakone volcano. After the 2015 eruption, unrest activity changed significantly in terms of seismicity and geochemistry. Like the pre- and co-e
Externí odkaz:
https://doaj.org/article/d03dddf9eb3541aa86760402f6833c7d
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-7 (2018)
Abstract Global navigation satellite system data from Hakone volcano, central Japan, together with GEONET data from the Geospatial Information Authority of Japan, were used to investigate the processes associated with the volcanic activity in 2015, w
Externí odkaz:
https://doaj.org/article/ff8a219681bd45cfaed646b26f63af35
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-14 (2018)
Abstract 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. Inversi
Externí odkaz:
https://doaj.org/article/b28df288d7e6475a90267f82de1f1b1e
Autor:
Ryokei Yoshimura, Yasuo Ogawa, Yohei Yukutake, Wataru Kanda, Shogo Komori, Hideaki Hase, Tada-nori Goto, Ryou Honda, Masatake Harada, Tomoya Yamazaki, Masato Kamo, Shingo Kawasaki, Tetsuya Higa, Takeshi Suzuki, Yojiro Yasuda, Masanori Tani, Yoshiya Usui
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-10 (2018)
Abstract On 29 June 2015, a small phreatic eruption occurred at Hakone volcano, Central Japan, forming several vents in the Owakudani geothermal area on the northern slope of the central cones. Intense earthquake swarm activity and geodetic signals c
Externí odkaz:
https://doaj.org/article/932ceb1e7ad940fe9ccf285bb02fb0a9
Autor:
Kazutaka Mannen, Yohei Yukutake, George Kikugawa, Masatake Harada, Kazuhiro Itadera, Jun Takenaka
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-26 (2018)
Abstract The 2015 eruption of Hakone volcano was a very small phreatic eruption, with total erupted ash estimated to be in the order of only 102 m3 and ballistic blocks reaching less than 30 m from the vent. Precursors, however, had been recognized a
Externí odkaz:
https://doaj.org/article/c44206d4025f4a778c348819f613c1b8
Autor:
Yohei Yukutake, Ryou Honda, Masatake Harada, Ryosuke Doke, Tatsuhiko Saito, Tomotake Ueno, Shin’ichi Sakai, Yuichi Morita
Publikováno v:
Earth, Planets and Space, Vol 69, Iss 1, Pp 1-16 (2017)
Abstract In the present study, we analyze the seismic signals from a continuous volcanic tremor that occurred during a small phreatic eruption of the Hakone volcano, in the Owakudani geothermal region of central Japan, on June 29, 2015. The signals w
Externí odkaz:
https://doaj.org/article/2226421d7d1049379e54969142ea55e0
Publikováno v:
Journal of Geography (Chigaku Zasshi). 130:783-796
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-20 (2021)
A model for coseismic groundwater level increase is presented for understanding hydrological responses of wells to seismic waves. Three types of coseismic groundwater level changes were observed in six wells 300–500 m in depth, operated by the Hot
Publikováno v:
Geological Society, London, Special Publications. 501:111-129