Results 81 to 90 of about 3,084 (214)

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

Prolonged Hypocenter Migration in a Lower‐Crustal Earthquake Swarm in Japan: Positive Feedback Between Heat Influx and Fluid Production

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract The Yamaguchi earthquake swarm in western Japan occurred at unusually deep depths (25–40 km), well below the seismogenic zone, and exhibited prolonged zigzag hypocenter migrations over at least ∼180 days. Seismicity initiated in the southwestern part of the swarm area, followed by systematic migration eastward, northeastward, and northwestward.
Junichi Nakajima, Kazuki Miyazaki, Nobuaki Suenaga, Shintaro Azuma, Shoichi Yoshioka   +4 more
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

Tsunami simulations of mega-thrust earthquakes in the Nankai–Tonankai Trough (Japan) based on stochastic rupture scenarios [PDF]

, 2017
In this study, earthquake rupture models for future mega-thrust earthquakes in the Nankai-Tonankai subduction zone are developed by incorporating the main characteristics of inverted source models of the 2011 Tohoku earthquake.
Goda, Katsu, Mai, P Martin, Maruyama, Takuma, Mori, Nobuhito, Yasuda, Tomohiro   +4 more
core   +2 more sources

Stochastic Emulation for Efficient Onshore Probabilistic Tsunami Hazard Assessment

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Machine learning is emerging as a promising strategy for modeling tsunami inundation at reduced computational cost. To enable probabilistic outputs that capture emulator uncertainty, we employ an ensemble of stochastic encoder‐decoder emulators with dropout‐based stochastic forward pass.
Naveen Ragu Ramalingam, Alice Abbate, Erlend Briseid Storrøsten, Gareth Davies, Stefano Lorito, Manuela Volpe, Steven J. Gibbons, Fabrizio Romano, Finn Løvholt   +8 more
wiley   +1 more source

Missing western half of the Pacific Plate: Geochemical nature of the Izanagi-Pacific Ridge interaction with a stationary boundary between the Indian and Pacific mantles [PDF]

, 2015
The source mantle of the basaltic ocean crust on the western half of the Pacific Plate was examined using Pb–Nd–Hf isotopes. The results showed that the subducted Izanagi–Pacific Ridge (IPR) formed from both Pacific (180–∼80 Ma) and Indian (∼80–70 Ma ...
Allegre, Amakawa, Asaki, Baker, Behn, Blichert-Toft, Bogdan S. Vaglarov, Carlson, Chang, Chauvel, Chauvel, Chen, Choi, Chu, Class, Condie, Davies, Dupré, Farnetani, Flower, Folkmar Hauff, Fukao, Gen Shimoda, Hall, Hanan, Hanan, Hanyu, Hart, Hart, Hauff, Hawkesworth, Heezen, Heydolph, Hickey-Vargas, Hickey-Vargas, Hirahara, Hirahara, Hirano, Hiroshi Kawabata, Hoernle, Hofmann, Hofmann, Huang, Ishizuka, Ito, Iwamori, Janney, Jochum, Jun-Ichi Kimura, Kanazawa, Kelley, Kempton, Kenichiro Tani, Kiminami, Kiminami, Kimura, Kimura, Kimura, Kimura, Kimura, Kimura, Kimura, Kimura, Klein, Konter, Koppers, Kuritani, Kuritani, Kuritani, Li, Machida, Macpherson, Mahoney, Mahoney, Martynov, McDonough, Miyazaki, Müller, Münker, Nakanishi, Naoto Hirano, Nebel, Nohda, Okamura, Osamu Ishizuka, Park, Pearce, Pearce, Pearce, Pearce, Plank, Plank, Plank, Pouclet, Pyle, Qing Chang, Reagan, Rehkamper, Roger, Roger, Ryoko Senda, Saito, Sakae Sano, Sakuyama, Sakuyama, Sano, Sano, Savov, Sdolias, Seton, Seton, Shiki Machida, Shimoda, Staudigel, Stixrude, Stracke, Stracke, Straub, Straub, Straub, Sun, Taira, Takahashi, Takashi Miyazaki, Takeyoshi Yoshida, Teruaki Ishii, Tollstrup, Toshiro Takahashi, Wessel, Whittaker, Willbold, Woodhead, Yasutaka Hayasaka, Yuka Hirahara, Zhang, Zhao, Zindler   +136 more
core   +1 more source

Detection of Shallow Tectonic Tremors in Hyuga‐nada, Nankai Trough, Using the Newly Established N‐Net OBS Network

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Monitoring tectonic tremors is crucial for understanding stress release in subduction zones and assessing megathrust earthquake risk. The Hyuga‐nada region, at the western edge of the Nankai Trough, Japan, provides a natural laboratory for investigating links among slow earthquakes, megathrust events, and complex subduction structures.
Kodai Sagae, Masayuki Kano, Suguru Yabe, Takahiko Uchide   +3 more
wiley   +1 more source

Precise tilt measurement by seafloor borehole tiltmeters at the Nankai Trough subduction zone

Earth, Planets and Space, 2023
In this study, geodetic and seismic phenomena occurring in the subduction zone were observed with two tiltmeters that were installed in seafloor boreholes drilled in the Kumano Basin in the Nankai Trough, southwest Japan.
Shuhei Tsuji, Eiichiro Araki, Takashi Yokobiki, Shuhei Nishida, Yuya Machida, Mark Zumberge, Keisuke Takahashi   +6 more
doaj   +1 more source

Upper Mantle Heterogeneity and Weak Subduction Boundaries Control Crustal Stress in the Korean Peninsula

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Most earthquakes occur at plate boundaries, but some also strike within stable continental interiors. Although dominant causes of such intraplate earthquakes remain elusive, a prevailing hypothesis attributes intraplate stress and seismicity to variations in lithospheric thickness.
Sungho Lee, Chang Soo Cho, YoungHee Kim, Youngsang Kwon, Eunseo Choi   +4 more
wiley   +1 more source

Horizontal principal stress orientation in the Costa Rica Seismogenesis Project (CRISP) transect from borehole breakouts [PDF]

, 2016
The Costa Rica Seismogenesis Project (CRISP) drilled the Pacific margin of the Middle America Trench just north of where the Cocos Ridge enters the subduction zone, resulting in basal erosion of the upper plate.
A. Malinverno, Arroyo, Arroyo, Bangs, Bell, Bell, Chang, Chib, Clift, Ekstrom, Gardner, Heidbach, Kluesner, Kobayashi, LaFemina, Lin, Malinverno, Metropolis, P. Vannucchi, Plumb, S. Saito, Sambridge, Sen, Tobin, Vannucchi, Vannucchi, von Huene, Walther, Wang, Wang, Wang, Wessel, Yassir, Zemanek, Zoback, Zoback   +35 more
core   +1 more source