Results 11 to 20 of about 3,084 (214)

Reconstruction of stress trajectory field in Nankai subduction zone based on drilling data

Journal of Rock Mechanics and Geotechnical Engineering
This paper presents some results of stress field reconstruction in the Nankai Trough subduction zone located within the area bounded by 136.3°–137°E and 33°–33.5°N where 12 scientific wells were drilled during Nankai Trough Seismogenic Zone Experiment ...
Nikita Dubinya, Alexander Galybin
doaj   +4 more sources

Temperature limits to deep subseafloor life in the Nankai Trough subduction zone [PDF]

Science, 2020
Deep, hot, and more alive than we thought Marine sediments represent a massive microbial ecosystem, but we still do not fully understand what factors shape and limit life underneath the seafloor. Analyzing samples from a subduction zone off the coast of Japan, Heuer et al.
Verena B. Heuer, Fumio Inagaki, Yuki Morono, Yusuke Kubo, Arthur J. Spivack, Bernhard Viehweger, Tina Treude, Felix Beulig, Florence Schubotz, Satoshi Tonai, Stephen A. Bowden, Margaret Cramm, Susann Henkel, Takehiro Hirose, Kira Homola, Tatsuhiko Hoshino, Akira Ijiri, Hiroyuki Imachi, Nana Kamiya, Masanori Kaneko, Lorenzo Lagostina, Hayley Manners, Harry-Luke McClelland, Kyle Metcalfe, Natsumi Okutsu, Donald Pan, Maija J. Raudsepp, Justine Sauvage, Man-Yin Tsang, David T. Wang, Emily Whitaker, Yuzuru Yamamoto, Kiho Yang, Lena Maeda, Rishi R. Adhikari, Clemens Glombitza, Yohei Hamada, Jens Kallmeyer, Jenny Wendt, Lars Wörmer, Yasuhiro Yamada, Masataka Kinoshita, Kai-Uwe Hinrichs   +42 more
openaire   +8 more sources

High-velocity frictional properties of clay-rich fault gouge in a megasplay fault zone, Nankai subduction zone [PDF]

Geophysical Research Letters, 2010
We conducted high-velocity friction experiments on clay-rich fault gouge taken from the megasplay fault zone in the Nankai subduction zone under dry and wet conditions.
Tsutsumi Akito, Ujiie Kohtaro, 氏家 恒太郎   +2 more
core   +3 more sources

Structural control on the nucleation of megathrust earthquakes in the Nankai subduction zone [PDF]

Geophysical Research Letters, 2014
AbstractTo clarify the causal mechanisms of megathrust earthquakes, we studied the detailed three‐dimensional P and S wave velocities (V), attenuation (Q), and Poisson's ratio (σ) structures of the Nankai subduction zone in southwest Japan, using a large number of high‐quality arrival time and t* data measured precisely from seismograms of local ...
Xin Liu, Dapeng Zhao
openaire   +3 more sources

Shallow Creep in the Leaky Stress Shadow of Locked Zones of Subduction Megathrust

Geophysical Research Letters
In some subduction zones such as Nankai, creeping of the shallow part of the megathrust in the stress shadow of deeper locked zones is detected by seafloor geodetic measurements and/or reflected by slow earthquakes (SEQs).
Kelin Wang, Yajing Liu, Tianhaozhe Sun
doaj   +2 more sources

Slow slip event within a gap between tremor and locked zones in the Nankai subduction zone [PDF]

Geophysical Research Letters, 2016
AbstractWe report on two small long‐term slow slip events (SSEs) within a gap between tremor and locked zones in the Nankai subduction zone, southwest Japan. The SSEs were detected by subtracting the steady state component and postseismic effects of large earthquakes from long‐term and high‐density Global Navigation Satellite System data.
Ryota Takagi, Kazushige Obara, Takuto Maeda   +2 more
openaire   +3 more sources

Fluid migration before and during slow earthquakes in the shallow Nankai subduction zone [PDF]

Journal of Geophysical Research: Solid Earth, 2021
Abstract Fluid migration in subduction zones is a key controlling factor of slow and megathrust earthquakes at plate boundaries. During the migration, seismic velocity and heterogeneous structures in its pathways may be temporarily perturbed, preferably triggering slow earthquakes.
Takashi Tonegawa, Shunsuke Takemura, Suguru Yabe, Kiyoshi Yomogida   +3 more
openaire   +2 more sources

IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone [PDF]

Scientific Drilling, 2010
Ocean Drilling Program were to sample and log the incoming sedimentary strata and uppermost igneous basement of the Shikoku Basin, seaward of the Nankai Trough (southwestern Japan).
Yu’suke Kubo, Saneatsu Saito, Michael B. Underwood, the IODP Expedition 322 Scientists   +3 more
doaj   +1 more source

Structural control and system-level behavior of the seismic cycle at the Nankai Trough

Earth, Planets and Space, 2020
The Nankai Trough in Southwest Japan exhibits a wide spectrum of fault slip, with long-term and short-term slow-slip events, slow and fast earthquakes, all associated with different segments down the plate interface.
Qibin Shi, Sylvain Barbot, Shengji Wei, Paul Tapponnier, Takanori Matsuzawa, Bunichiro Shibazaki   +5 more
doaj   +1 more source

IODP workshop: Core-Log Seismic Investigation at Sea – Integrating legacy data to address outstanding research questions in the Nankai Trough Seismogenic Zone Experiment [PDF]

Scientific Drilling, 2018
The first International Ocean Discovery Program (IODP) Core-Log-Seismic Integration at Sea (CLSI@Sea) workshop, held in January–February 2018, brought together an international, multidisciplinary team of 14 early-career scientists and a group of ...
A. Cerchiari, R. Fukuchi, B. Gao, K.-H. Hsiung, D. Jaeger, S. Kaneki, J. Keller, G. Kimura, S.-T. Kuo, G. Lymer, T. Maison, G. Motohashi, C. Regalla, D. Singleton, S. Yabe   +14 more
doaj   +1 more source