Results 51 to 60 of about 350 (172)

Dynamic Evolution of Forearc Subsidence Controlled by Slab Geometry

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Several subduction zones worldwide present an enigmatic forearc topography and strain characterized by extension at a forearc ridge near the trench and shortening within a forearc valley located between the ridge and the magmatic arc. The development of this topography has been linked to progressive slab steepening, while strain patterns ...
F. Bolrão, W. P. Schellart
wiley   +1 more source

Tectonic Tremor Reveals Slow Deformation Along the Antarctic–South American Subduction Zone

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Antarctic–South American subduction zone is among the least explored convergent margins and lacks documented large interplate earthquakes despite ongoing convergence. Here we report the discovery of tectonic tremor along this plate boundary using continuous seismic data.
K. Azúa, S. Ruiz, S. Ide
wiley   +1 more source

Structural Evolution of the Eastern Nankai Trough accretionary prism, Central Japan—Subduction of Trough-Parallel Seamount Chains

Progress in Earth and Planetary Science
The Nankai Trough, offshore of Southwest Japan, represents a plate subduction zone where a long history of devastating mega-earthquake and tsunami events has been best documented.
Philomene Vanessa Eyang Ondo Ep Ella Ndong, Kohsaku Arai, Ayanori Misawa, Narumi Takahashi, Yuka Yokoyama, Asahiko Taira, Izumi Sakamoto   +6 more
doaj   +1 more source

Long-term slow slip events along the Nankai trough subduction zone after the 2011 Tohoku earthquake in Japan

Earth, Planets and Space, 2017
The global navigation satellite system (GNSS) network in Japan has detected transient crustal deformation in regions along the Nankai trough subduction zone in southwest Japan from approximately 2013, after the 2011 Tohoku earthquake. Using the GNSS data,
Shinzaburo Ozawa
doaj   +1 more source

Field and Experimental Observations Show Elevated Shear Strength of Active Margin Sediments Requires Processes Beyond Normal Consolidation

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Near‐seafloor marine sediments on active margins have been shown to be stronger than those on passive margins. However, the reasons for this are not fully understood. To investigate the role of intrinsic properties, we performed resedimentation and oedometer tests and measured undrained shear strength, grain size, mineralogy, and plasticity on
Bailey Fitzgerald, Derek E. Sawyer, Julia S. Reece, Wyatt Scott   +3 more
wiley   +1 more source

Pore‐Pressure Cycles and Slow Slip Generation on Mildly Velocity‐Weakening Faults

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 7, July 2026.
Abstract Recent observations have revealed pore‐fluid pressure fluctuations correlated with the occurrence of slow slip events (SSEs) in several subduction zones. These fluctuations, caused by fluid accumulation and migration before and during SSEs, may modulate the timing and characteristics of these events.
Andrea Perez‐Silva, Yoshihiro Kaneko, Ting Wang   +2 more
wiley   +1 more source

2D visco-elasto-plastic subduction models in the presence of a high density and viscosity continental block: a case study for the slab geometry beneath the Kii Peninsula, southwest Japan

Progress in Earth and Planetary Science
The Philippine Sea (PHS) plate embracing the Shikoku Basin subducts with a relatively young age varying between ~ 15 and 26 Ma. It exhibits a diversity of subduction styles along the Nankai Trough, from shallow beneath Shikoku and Chugoku regions to ...
Erika Jessenia Moreno, Shoichi Yoshioka, Vlad Constantin Manea, Marina Manea, Nobuaki Suenaga   +4 more
doaj   +1 more source

High‐Rate GNSS Analysis of the Onset, Growth, and Termination of Slow Slip Events and Their Along‐Dip Variability Offshore the Boso Peninsula, Japan (2011–2024)

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract Recurring slow slip events (SSEs) with moment magnitudes in the mid‐6 range have occurred every few years since the 1990s offshore the Boso Peninsula, Japan. These events occur near the source area of ∼M8 megathrust earthquakes beneath the Tokyo metropolitan area and are accompanied by earthquake swarms.
Riko Arai, Shiori Watanabe, Yuta Mitsui
wiley   +1 more source

Thermal Conductivity Profile in the Nankai Accretionary Prism at IODP NanTroSEIZE Site C0002: Estimations From High‐Pressure Experiments Using Input Site Sediments

Geochemistry, Geophysics, Geosystems, 2020
Depth profiles of sediment thermal conductivity are required for understanding the thermal structure in active seismogenic zones. During the Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE), a scientific drilling project of the International Ocean
Weiren Lin, Takehiro Hirose, Osamu Tadai, Wataru Tanikawa, Kazuya Ishitsuka, Xiaoqiu Yang   +5 more
doaj   +1 more source

Origin, Tectonic Processes, and Metasomatism of Serpentinite in the Shimanto Accretionary Complex, SW Japan: Possible Diapiric Intrusion of Serpentinized Oceanic Lithosphere

Tectonics, Volume 45, Issue 7, July 2026.
Abstract Serpentinite plays a major role in the geodynamics of subduction zones. However, the processes by which serpentinite is incorporated into accretionary complexes, and the extent to which it interacts chemically and physically with accretionary lithologies, remain unclear.
Yusuke Shimura, Shunsuke Endo, Yoshihiro Asahara, Toshiki Haji, Kentaro Ushimaru, Koshi Yamamoto   +5 more
wiley   +1 more source