Results 51 to 60 of about 1,199,820 (162)

Seismic Velocity of Chlorite Under High Pressure and Temperature and Implications for the Lesser Antilles Subduction Zone

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Chlorite is thought to be one of the major water‐carrying phases in subduction zones, both within the slab and in the mantle wedge. Its presence has previously been linked to common seismological observations at subduction zones, including P and S wave anisotropy as well as high VP/VS ratios (>1.8) in the mantle wedge.
Nicholas Backhouse, Andrew Thomson, John Brodholt, Rostislav Hrubiak, Wilson Crichton, Ming Hao, Emmanuel A. Codillo, Anne Pommier, Michael J. Walter   +8 more
wiley   +1 more source

Late Quaternary Surface Displacements on Accretionary Wedge Splay Faults in the Cascadia Subduction Zone: Implications for Megathrust Rupture

Seismica
Because splay faults branch at a steep dip angle from the plate-boundary décollement in an accretionary wedge, their coseismic displacement can potentially result in larger tsunamis with distinct characteristics compared to megathrust-only fault ruptures,
Anna Ledeczi, Madeleine Lucas, Harold Tobin, Janet Watt, Nathan Miller   +4 more
doaj   +1 more source

GIA‐Induced Mantle Circulation and Surface Horizontal Motions in North America: Effects of 3D Laterally Varying Elastic Thickness and Viscosity

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract The horizontal surface motions of the Earth's crust induced by glacial isostatic adjustment (GIA) are highly sensitive to lateral variations in Earth properties. We construct 3D GIA models by incorporating both varying elastic lithospheric thickness and lateral viscosity variations in the asthenosphere in a global, compressible, self ...
Kaixuan Kang, Thorsten W. Becker
wiley   +1 more source

A numerical study of the dynamics of subduction [PDF]

, 1988
The mechanics and dynamics of subduction have been studied using 2-D finite element analysis. Two finite element formulations have been employed; one formulation for Newtonian viscous flow and one formulation for linear elasticity and viscoelasticity ...
Whittaker, A.
core  

Body Wave Tomography of the Cascadia Subduction Zone and Juan de Fuca Plate System: Identifying Challenges and Solutions for Shore‐Crossing Data

Geochemistry, Geophysics, Geosystems, 2020
Recent seismic results from the Cascadia Initiative indicate that heterogeneity in the oceanic asthenosphere affects subduction dynamics. Accurate characterization of the oceanic upper mantle is thus necessary to fully understand subduction processes ...
M. Bodmer, D. R. Toomey, B. VanderBeek, E. E. Hooft, J. S. Byrnes   +4 more
doaj   +1 more source

A Hybrid Framework Combining Physical and Data‐Driven Models for Predicting the Timing of Fault Instability

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Reliable prediction of earthquakes and rock mass failure has long been hampered by a fundamental trade‐off: achieving both a long warning window and high prediction accuracy. Physical models, such as the failure forecast method (FFM) based on the time‐reversed Omori law, can provide longer warning windows but are sensitive to data noise and ...
Jian‐Zhi Zhang, Tao‐Tao Zhang, Tao Zhou, Zhi Lin, Ting Zhang   +4 more
wiley   +1 more source

Performance of Slab Geometry Constraints on Rapid Geodetic Slip Models, Tsunami Amplitude, and Inundation Estimates in Cascadia

Seismica
Tsunamigenic megathrust earthquakes along the Cascadia subduction zone present a major hazard concern. We can better prepare to model the earthquake source in a rapid manner by imbuing fault geometry constraints based on prior knowledge and by ...
Kevin Kwong, Brendan Crowell, Amy Williamson, Diego Melgar, Yong Wei   +4 more
doaj   +1 more source

Characterizing Incoming Cocos Plate Structure Outboard of the Guerrero Gap and Adjacent Segments Offshore Mexico: Implications for Along‐Strike Variations in Megathrust Slip Behavior

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Megathrust slip behavior in subduction zones can vary along‐strike, yet the mechanisms driving this variability remain uncertain. The Middle America trench offshore Mexico provides an ideal setting to investigate the structural controls on megathrust slip behavior.
Davis Hagemeier, Anne Bécel, Tanner Acquisto, Víctor M. Cruz‐Atienza, Brandon Shuck, Donna J. Shillington, Shuoshuo Han, Brian Boston, Jorge A. Real, Yoshihiro Ito, Grace Ward   +10 more
wiley   +1 more source

An assessment of the megathrust earthquake potential of the Cascadia subduction zone

, 1988
The active tectonic setting of the southwest coast of Canada and the Pacific northwest coast of the United states is dominated by the Cascadia subduction zone.
Rogers, Garry C.
core   +1 more source

Thermal and Structural Signatures Associated With Subducted Seamounts in Hyuga‐nada and Off Cape Muroto, Southwest Japan

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract We present heat flow estimates beneath the forearc slopes off Hyuga‐nada and Cape Muroto in the Nankai Trough, where the Philippine Sea plate subducts beneath the southwestern Japan. Using seismic reflection data, we identified Bottom Simulating Reflectors and derived heat flow ranging from 20 to >140 mW/m2.
Masataka Kinoshita, Kazuya Shiraishi, Yoshitaka Hashimoto, Yohei Hamada, Rie Nakata   +4 more
wiley   +1 more source