Results 1 to 10 of about 621 (120)

Harmonic tremor from the deep part of Hakone volcano

Earth, Planets and Space, 2022
The feeding system of magmatic fluid from the volcanic root to a shallow magma reservoir remains a poorly understood issue. Seismic events, including volcanic tremors and low-frequency earthquakes, in a deep part beneath volcanos are key observations for
Yohei Yukutake, Ryou Honda, Motoo Ukawa, Kei Kurita   +3 more
doaj   +3 more sources

Volcanic unrest at Hakone volcano after the 2015 phreatic eruption: reactivation of a ruptured hydrothermal system? [PDF]

Earth, Planets and Space, 2021
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-eruptive unrest,
Kazutaka Mannen, Yuki Abe, Yasushi Daita, Ryosuke Doke, Masatake Harada, George Kikugawa, Naoki Honma, Yuji Miyashita, Yohei Yukutake   +8 more
doaj   +2 more sources

Resistivity characterisation of Hakone volcano, Central Japan, by three-dimensional magnetotelluric inversion [PDF]

Earth, Planets and Space, 2018
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.
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   +16 more
doaj   +2 more sources

Contribution of aseismic slips to earthquake swarms at the Hakone volcano

Earth, Planets and Space
Recent studies have proposed the contribution of aseismic slip (AS) to earthquake swarms. We investigated the role of AS in earthquake swarms that occurred in 2009, 2015, and 2019 at the Hakone volcano, central Japan, through highly resolved hypocenter ...
Tetsuro Kawai, Yohei Yukutake, Ryosuke Doke, Ryou Honda   +3 more
doaj   +3 more sources

Shallow volcanic earthquakes in the Owakudani geothermal area, Hakone volcano, Japan

Earth, Planets and Space
Hakone volcano, located in central Japan, produced a small phreatic eruption in June 2015. Although seismic activity in the Hakone region is generally low, the area experiences episodic earthquake swarms approximately once every few years. In the volcano,
Ryo Kurihara, Yutaka Nagaoka, Ryou Honda, Kazuhiro Itadera   +3 more
doaj   +2 more sources

Analyzing the continuous volcanic tremors detected during the 2015 phreatic eruption of the Hakone volcano [PDF]

Earth, Planets and Space, 2017
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.
Yohei Yukutake, Ryou Honda, Masatake Harada, Ryosuke Doke, Tatsuhiko Saito, Tomotake Ueno, Shin’ichi Sakai, Yuichi Morita   +7 more
doaj   +2 more sources

Temporal changes in inflation sources during the 2015 unrest and eruption of Hakone volcano, Japan [PDF]

Earth, Planets and Space, 2018
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, which ...
Masatake Harada, Ryosuke Doke, Kazutaka Mannen, Kazuhiro Itadera, Mikio Satomura   +4 more
doaj   +2 more sources

Chronology of the 2015 eruption of Hakone volcano, Japan: geological background, mechanism of volcanic unrest and disaster mitigation measures during the crisis

Earth, Planets and Space, 2018
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.
Kazutaka Mannen, Yohei Yukutake, George Kikugawa, Masatake Harada, Kazuhiro Itadera, Jun Takenaka   +5 more
doaj   +2 more sources

Special issue “Towards forecasting phreatic eruptions: examples from Hakone volcano and some global equivalents” [PDF]

Earth, Planets and Space, 2019
Kazutaka Mannen, Diana Roman, Graham Leonard, Stephanie Prejean, Mitsuhiro Nakagawa   +4 more
doaj   +2 more sources

Development of a high-performance seismic phase picker using deep learning in the Hakone volcanic area

Earth, Planets and Space, 2023
In volcanic regions, active earthquake swarms often occur in association with volcanic activity, and their rapid detection and analysis are crucial for volcano disaster prevention.
Ahyi Kim, Yuji Nakamura, Yohei Yukutake, Hiroki Uematsu, Yuki Abe   +4 more
doaj   +1 more source