Member Since 1995
Shuichi Kodaira
Director-general, JAMSTEC Japan Agency for Marine-Earth Science and Technology
AGU Research
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The geometry change of the subducting oceanic plate and its relation to the formation of the mega-splay fault and interplate seismic activities in Nankai Trough
SUBDUCTION TOP TO BOTTOM: CONVERGENT MARGIN PROCESSES TRENCH TO ARC (ALEUTIANS/ALASKA AND BEYOND) III POSTER
tectonophysics | 13 december 2024
Gou Fujie, Kazuya Shiraishi, Takeshi Sato, Yanfang...
The Nankai subduction zone off Kumano is one of the most extensively studied seismogenic subduction zones in the world. Many 2-D MCS, 2-D OBS and 3-D ...
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Precise aftershock activity by rapid response seafloor observation in the eastern source region of the 2024 Noto-Hanto earthquake using ocean bottom seismometers
RECENT EARTHQUAKES ACROSS THE GLOBE: ANALYSIS OF MAIN SHOCKS, AFTERSHOCKS, AND SECONDARY HAZARDS FOR PREPARATION, RAPID RESPONSE, AND RECOVERY II ORAL
natural hazards | 13 december 2024
Masanao Shinohara, Ryota Hino, Tsutomu Takahashi, ...
The 2024 Noto-Hanto earthquake with a Japan Meteorological Agency (JMA) magnitude of 7.6 occurred in the Noto peninsula on January 1st, 2024. The main...
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High-resolution seismic velocity imaging at the tremor-to-trench area in the westernmost Nankai Trough, southwest Japan
SLOW-TO-FAST EARTHQUAKES FROM SHALLOW TO DEEP: MULTISCALE RHEOLOGY OF PLATE BOUNDARY FAULTS III ORAL
seismology | 12 december 2024
Ryuta Arai, Kazuya Shiraishi, Yasuyuki Nakamura, G...
Slow earthquakes that occur in the shallow sections of subduction faults (< ~10 km depth) are increasingly documented worldwide. These events are b...
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Wedge deformation from sequential seamount subduction in the Nankai Trough off Muroto and its implications to shallow slow earthquake activity
SLOW-TO-FAST EARTHQUAKES FROM SHALLOW TO DEEP: MULTISCALE RHEOLOGY OF PLATE BOUNDARY FAULTS III ORAL
seismology | 12 december 2024
Paul Caesar Flores, Shuichi Kodaira, Gaku Kimura, ...
The occurrence of shallow slow earthquakes has been attributed to different factors such as seamount subduction, pore fluid pressure, fluid migration,...
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The Sofu Seamount Submarine Volcano Present in the Source Area of the October 2023 Earthquakes and Tsunamis in Japan
SZ4D: INTERCONNECTED SUBDUCTION ZONE HAZARDS I POSTER
volcanology, geochemistry and petrology | 11 december 2024
Toshiya Fujiwara, Kentaro Imai, Masayuki Obayashi,...
On October 8, 2023 (UTC), unique earthquakes occurred in the Izu-Ogasawara Arc, Japan, in which the P- and S-phases were barely visible and only the T...
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A physical explanation for an unusually long-duration slow slip event in the Nankai Trough
RECENT ADVANCES IN SEAFLOOR GEODESY I ORAL
geodesy | 09 december 2024
Keisuke Ariyoshi, Akira Nagano, Takuya Hasegawa, T...
JAMSTEC has found changes in pore pressure from boreholes, identifying these as Slow Slip Events (SSEs) near the 1944 Tonankai earthquake area, which ...
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From Symmetric Rifting to Asymmetric Spreading—Insights Into Back‐Arc Formation in the Central Mariana Trough
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
07 november 2024
Helene-Sophie Hilbert, Anke Dannowski, Ingo Grevem...
The Mariana Trough is the youngest back‐arc basin in a series of basins and arcs that developed behind the Mariana subduction zone in the wes...
Shear‐Dominant Continental Rifting in Northern Ryukyu Revealed by Ambient Noise Tomography
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
31 october 2024
Kai Xun Chen, Ban-Yuan Kuo, Ting-Jun Lin, PeiYing ...
In this study, we reveal the deformational structure of the crust of the northern part of the Ryukyu Arc and Okinawa Trough using ambient noise tom...