Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Yoshiko Yamanaka"'
Autor:
Ayaka Tagami, Miu Matsuno, Tomomi Okada, Shin’ichi Sakai, Mako Ohzono, Kei Katsumata, Masahiro Kosuga, Yoshiko Yamanaka, Hiroshi Katao, Takeshi Matsushima, Hiroshi Yakiwara, Satoshi Hirahara, Toshio Kono, Shu’ichiro Hori, Toru Matsuzawa, Shuutoku Kimura, Takashi Nakayama, Group for the aftershock observations of the 2011 off the Pacific coast of Tohoku Earthquake
Publikováno v:
Earth, Planets and Space, Vol 76, Iss 1, Pp 1-29 (2024)
Abstract Inversion tectonics, in which old normal faults act as reverse faults in current stress fields, are frequently observed in northeastern Japan (Tohoku District); however, the conditions that control these fault activities remain unclear. To i
Externí odkaz:
https://doaj.org/article/f78db71ea92b454399bae40c8a2f4f35
Autor:
Yuki Susukida, Kei Katsumata, Masayoshi Ichiyanagi, Mako Ohzono, Hiroshi Aoyama, Ryo Tanaka, Masamitsu Takada, Teruhiro Yamaguchi, Kazumi Okada, Hiroaki Takahashi, Shin’ichi Sakai, Satoshi Matsumoto, Tomomi Okada, Toru Matsuzawa, Hiroki Miyamachi, Shuichiro Hirano, Yoshiko Yamanaka, Shinichiro Horikawa, Masahiro Kosuga, Hiroshi Katao, Yoshihisa Iio, Airi Nagaoka, Noriko Tsumura, Tomotake Ueno, The Group for the Aftershock Observations of the 2018 Hokkaido Eastern Iburi Earthquake
Publikováno v:
Earth, Planets and Space, Vol 73, Iss 1, Pp 1-13 (2021)
Abstract The tectonic stress field was investigated in and around the aftershock area of the Hokkaido Eastern Iburi earthquake (M JMA = 6.7) occurred on 6 September 2018. We deployed 26 temporary seismic stations in the aftershock area for approximat
Externí odkaz:
https://doaj.org/article/d1454d09f83c415485e9fdd50455b270
Autor:
Toshiko Terakawa, Aitaro Kato, Yoshiko Yamanaka, Yuta Maeda, Shinichiro Horikawa, Kenjiro Matsuhiro, Takashi Okuda
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Volcanic activity is often accompanied by small earthquakes, with focal mechanisms indicating stress state beneath volcanoes. Here, the authors demonstrate that quantitative evaluation of temporal stress changes is an effective tool for eruption moni
Externí odkaz:
https://doaj.org/article/8ac8b2bd3d1348a79354a52c4b413925
Publikováno v:
Geophysical Journal International. 225(1):416-444
We propose a new algorithm, focusing on spatial amplitude patterns, to automatically detect volcano seismic events from continuous waveforms. Candidate seismic events are detected based on signal-to-noise ratios. The algorithm then utilizes supervise
Autor:
Mako Ohzono, Manami Nakamoto, Shin'ichi Sakai, Ayaho Mitsuoka, Youichi Asano, Kazuhiko Goto, Azusa Shito, Satoshi Matsumoto, Yusuke Yamashita, Masahiro Kosuga, Masayuki Yoshimi, Yoshihisa Iio, Yoshiko Yamanaka, Hiroshi Shimizu, Tomomi Okada
Publikováno v:
Journal of Geophysical Research: Solid Earth. 125
Autor:
Noriko Niida, Yoshiko Yamanaka
Publikováno v:
Zisin (Journal of the Seismological Society of Japan. 2nd ser.). 70:233-248
Publikováno v:
Journal of Geophysical Research: Solid Earth. 122:1007-1024
Although phreatic eruptions are common volcanic phenomena that sometimes result in significant disasters, their dynamics are poorly understood. In this study, we address the dynamics of the phreatic eruption of Mount Ontake, Japan, in 2014 based on a
Autor:
Aitaro Kato, Yoshiko Yamanaka, Toshihiro Igarashi, Naoshi Hirata, Kazuhiko Goto, Toshiko Terakawa, Takeshi Matsushima, Noriko Tsumura, Toru Matsuzawa, Hiroaki Takahashi, Takashi Okuda, Atsushi Saiga, Kazushige Obara, Takaya Iwasaki, Akira Hasegawa, Tsutomu Miura, Takuji Yamada, Tomomi Okada, Atsuki Kubo, Tetsuya Takeda, Takashi Iidaka, Hiroshi Katao, Norihito Umino, Haruhisa Nakamichi, Hiroki Miyamachi, Shinichiro Horikawa, Masahiro Kosuga, Keisuke Yoshida, Shin'ichi Sakai
Publikováno v:
Crustal Permeability
After the occurrence of the 2011 magnitude 9 Tohoku earthquake, the seismicity in the overriding plate changed. The seismicity appears to form distinct belts. From the spatiotemporal distribution of hypocenters, we can quantify the evolution of seism
Autor:
Yoshiko Yamanaka, Haruhisa Nakamichi, Shinichiro Horikawa, Fumihito Yamazaki, Toshiko Terakawa, Takashi Okuda
Publikováno v:
Earth, Planets and Space. 65:551-562
We deployed a seismic array at a site 5 km east of Shinmoedake volcano, in the Kirishima volcanic complex of southwest Japan, five days after the sub-Plinian eruption on 26 January, 2011. The array record between February and September 2011 included
Autor:
Takeshi Matsushima, Masahiro Kosuga, Toshiko Terakawa, Noriko Tsumura, Yoshiko Yamanaka, Naoshi Hirata, Aitaro Kato, Atsuki Kubo, Atsushi Saiga, Hiroshi Katao, Shin'ichi Sakai, Haruhisa Nakamichi, Shinichiro Horikawa, Takuji Yamada, Kazuhiko Goto, Hiroki Miyamachi, Tomomi Okada, Takaya Iwasaki, Hiroaki Takahashi, Kazushige Obara, Tetsuya Takeda, Takashi Iidaka, Norihito Umino, Takashi Okuda, Toshihiro Igarashi
Publikováno v:
Geophysical Research Letters. 40:273-278
[1] Intense swarm-like seismicity associated with shallow normal faulting was induced in Ibaraki and Fukushima prefectures, Japan, following the 2011 Tohoku-Oki earthquake. This seismicity shows a systematic spatiotemporal evolution, but little is kn