Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Ryoya Ikuta"'
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-19 (2022)
Abstract We developed a method to detect attenuation changes during seismic wave propagation excited by precisely controlled artificial seismic sources, namely Accurately Controlled Routinely Operated Signal System (ACROSS), and applied it to monitor
Externí odkaz:
https://doaj.org/article/d4f683da671b49cfb30661de3abbfe97
Autor:
Horng-Yue Chen, Ryoya Ikuta, Ya-Ju Hsu, Toshiaki Tsujii, Masataka Ando, Yoko Tu, Takeru Kohmi, Kiyomichi Takemoto, Koto Mizuno, Hsin Tung, Chin-Shang Ku, Cheng-Horng Lin
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Long-term seafloor geodetic measurements are important for constraining submarine crustal deformation near plate boundaries. Here we present an integrated analysis of a decade of GNSS/acoustic data collected at a site 60 km to the east of northeast T
Externí odkaz:
https://doaj.org/article/32f511bcb6764eb7a084091e6cbb1065
Autor:
Shuhei Tsuji, Koshun Yamaoka, Ryoya Ikuta, Takahiro Kunitomo, Toshiki Watanabe, Yasuhiro Yoshida, Akio Katsumata
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-10 (2018)
Abstract We discovered a secular change in the travel time of direct S-waves over a 10-year observation period by means of continuous operation of an artificial and stable seismic source, called Accurately Controlled Routinely Operated Signal System
Externí odkaz:
https://doaj.org/article/c7b7c3ca814d4f3b988876f794fe435c
Publikováno v:
Progress in Earth and Planetary Science, Vol 5, Iss 1, Pp 1-10 (2018)
Abstract Four ancient tsunami deposits were identified in a trench excavated on Ishigaki Island, Okinawa, Japan. Three of the tsunami deposits (T-I, T-II, and T-IV) consist of calcareous sand beds, whereas the other (T-III, located stratigraphically
Externí odkaz:
https://doaj.org/article/e53075518af84a6f8d755ec29ec2fd20
Autor:
Horng‐Yue Chen, Ya‐Ju Hsu, Ryoya Ikuta, Hsin Tung, Chi‐Hsien Tang, Chin‐Shang Ku, Hsuan‐Han Su, Pei‐Ru Jian, Masataka Ando, Toshiaki Tsujii
Publikováno v:
Geophysical Research Letters. 49
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7e2d56e909e98f508b112810f0df75
https://doi.org/10.1029/2022gl098218
https://doi.org/10.1029/2022gl098218
We investigate the veracity of the reports by Iwata & Umeno (2016, https://doi.org/10.1002/2016JA023036) and Iwata & Umeno (2017, https://doi.org/10.1002/2017JA023921), both of which claimed that t...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a0b4400720bd22d48e25f8c8871f393
https://doi.org/10.1002/essoar.10506732.1
https://doi.org/10.1002/essoar.10506732.1
Autor:
Takeru Kohmi, Ryoya Ikuta, Toshiaki Tsujii, Ya-Ju Hsu, Hsin Tung, Masataka Ando, Koto Mizuno, Horng-Yue Chen, Chin-Shang Ku, Kiyomichi Takemoto, Yoko Tu, Cheng-Horng Lin
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
The sustained seafloor geodetic measurement is crucial, even yet sparse in time and space, to constrain the undersea crustal deformation near the plate boundaries. We present an integrated analysis of a decade of GNSS/Acoustic data collected at a sit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6e87fd73b789424277167dfff1fabde
https://www.frontiersin.org/articles/10.3389/feart.2021.601138/full
https://www.frontiersin.org/articles/10.3389/feart.2021.601138/full