Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Mie Ichihara"'
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 21, Pp n/a-n/a (2024)
Abstract The 15 January 2022, eruption at Hunga Tonga‐Hunga Ha'apai (HTHH) volcano started shortly after 4:00UTC. There had been noted unconfirmed precursory events. We analyzed seismometer data recorded in Fiji and Futuna, the closest stations ope
Externí odkaz:
https://doaj.org/article/719628e8e61b466499de9221b1d5bfa4
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 19, Pp n/a-n/a (2024)
Abstract On 15 January 2022, a massive underwater eruption occurred at the Hunga Tonga‐Hunga Ha'apai Volcano. The plume reached the mesosphere, and the eruption excited a significant atmospheric Lamb wave, which forced the tsunami. The complicated
Externí odkaz:
https://doaj.org/article/a32534e415944b6db6b984b16646886f
Autor:
Masaru Nakano, Mie Ichihara, Daisuke Suetsugu, Takao Ohminato, Shigeaki Ono, Rennie Vaiomounga, Taaniela Kula, Masanao Shinohara
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-12 (2024)
Abstract The devastation caused by the January 2022 eruption of Hunga Tonga-Hunga Ha’apai volcano (HTHH) in the Tongan archipelago reminded us of the importance of monitoring shallow-sea volcanic activity. Seismic observations are essential for suc
Externí odkaz:
https://doaj.org/article/b9ecfda4b05c45cda5024fdc1b8e06bd
Autor:
Mie Ichihara, Tsukasa Kobayashi, Fukashi Maeno, Takao Ohminato, Atsushi Watanabe, Setsuya Nakada, Takayuki Kaneko
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-4 (2023)
Externí odkaz:
https://doaj.org/article/f960da96846b4dd2a83e9881c346b6f4
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-12 (2023)
Abstract Hunga Tonga-Hunga Ha’apai (HTHH), a submarine caldera volcano of the Tonga archipelago, erupted explosively on January 15, 2022. The eruption generated the highest concentration of lightning events ever recorded, producing characteristic r
Externí odkaz:
https://doaj.org/article/2cf143518f4140ebad9f4e6c4009d2bc
Publikováno v:
Antarctic Record, Vol 67, Pp 1-11 (2023)
For infrasound monitoring in Antarctica, there is a need for infrasound sensors with low power consumption and high resistance to low-temperature environments. A new-type infrasound sensor (TYPE7744N/5002A) manufactured by ACO Co., Ltd. (Japan) with
Externí odkaz:
https://doaj.org/article/cb8f3d3aff774e2a81b6ede27d340769
Autor:
Mie Ichihara, Tsukasa Kobayashi, Fukashi Maeno, Takao Ohminato, Atsushi Watanabe, Setsuya Nakada, Takayuki Kaneko
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-21 (2023)
Abstract Kirishima volcano consists of more than 20 eruptive centers. Among them, Shinmoe-dake had magmatic eruptions in October 2017 and March 2018. Subsequently, another active cone, Iwo-yama, had phreatic eruptions in April 2018. These events were
Externí odkaz:
https://doaj.org/article/f61caa1ee5fc4a248777389e6c84277a
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-16 (2023)
Abstract Decades ago, Julian (J Volcanol Geotherm Res 101:19–26, 1994. https://doi.org/10.1029/93JB03129 ) proposed the lumped parameter model of non-linear excitation of an elastic channel vibration by fluid flow as a mechanism of volcanic harmoni
Externí odkaz:
https://doaj.org/article/2f58293d35cb452ca69f98605ea0599d
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:
Kazuya Yamakawa, Mie Ichihara, Dan Muramatsu, Takeshi Matsushima, Hidetoshi Takahashi, Ruka Wada, Isao Shimoyama
Publikováno v:
Earth, Planets and Space, Vol 75, Iss 1, Pp 1-12 (2023)
Abstract In the infrasonic observation of a fumarolic field, distinguishing multiple fumarolic sources is challenging. The array technique effectively estimates the source locations and identifies the target signal from other signals and noise. We co
Externí odkaz:
https://doaj.org/article/895c372aa1274b8699b6f6bc5a12a1d7