Results 41 to 50 of about 1,199,820 (162)

State of Stress in Subduction Zone Forearcs: Influence of the Mantle Wedge Corner and Serpentinization

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract We investigate the role of the elasticity and density of the forearc mantle wedge corner on the stress distribution in the forearc region of subduction zones, using numerical quasi‐2D lithospheric deformation models for the Cascadia, Nankai, NE Japan, and Costa Rica subduction zones. We incorporate the forearc mantle wedge corner as an elastic
Viven Sharma, Ikuko Wada
wiley   +1 more source

No evidence for an active margin-spanning megasplay fault at the Cascadia Subduction Zone

Seismica
It has been previously proposed that a megasplay fault within the Cascadia accretionary wedge, spanning from offshore Vancouver Island to Oregon, has the potential to slip during a future Cascadia subduction zone earthquake.
Madeleine C Lucas, Anna M Ledeczi, Harold J Tobin, Suzanne M Carbotte, Janet T Watt, Shuoshuo Han, Brian Boston, Danqi Jiang   +7 more
doaj   +1 more source

A Multi‐Region Deep Learning Framework for Low‐Frequency Earthquake Detection: Application to the Guerrero Seismic Gap

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Low‐frequency earthquakes (LFEs) provide key constraints on slow earthquake processes but remain difficult to detect because of their low signal‐to‐noise ratios (SNR) and emergent onsets, particularly in offshore environments where seismic networks are sparse.
Yanhan Chen, Yoshihiro Ito
wiley   +1 more source

Near-field tsunami forecasting along the Cascadia subduction zone using rapid GNSS source models

, 2020
Data pertaining to the submitted work Near-field tsunami forecasting along the Cascadia subduction zone using rapid GNSS source model (2020) by Williamson et al.
Kwong, Kevin, Arcas, Diego (8475522), Wei, Yong (8475528), Melgar, Diego, Crowell, Brendan, Melbourne, Timothy (8475525), Williamson, Amy (8475516), Melbourne, Timothy, Kwong, Kevin (8475531), Wei, Yong, Williamson, Amy, Arcas, Diego, Crowell, Brendan (8475519), Melgar, Diego (5304415)   +13 more
core   +1 more source

Quantifying the Role of 3D Fault Geometry Complexities on Slow and Fast Earthquakes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Traditional models of slow slip events (SSEs) oversimplify fault geometry, although imaging shows subduction faults are segmented and complex. We examine how fault interactions control slip behavior using 3D quasi‐dynamic simulations of two parallel faults with uniform rate‐weakening friction accelerated by hierarchical matrices.
J. Cheng, H. S. Bhat, M. Almakari, B. Lecampion, P. Dubernet   +4 more
wiley   +1 more source

3D Subduction Interface Model for the Hikurangi Margin, New Zealand: Implications for Slow Slip Events

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract We present a new 3D Hikurangi subduction interface model by using an implicit modeling approach that integrates seismic‐reflection profiles, relocated hypocenters, focal mechanism orientations, and tomographic interpretations. The model reveals along‐strike transitions in slow slip events (SSEs) that correlate with subduction interface ...
Haoran Ma, Maomao Wang, Andreas Plesch, Fuyuan Wang, Renqi Lu   +4 more
wiley   +1 more source

Numerical analysis of deformation in the upper part of subduction zones [PDF]

, 1981
The stresses and deformation in an accretionary prism, and the crystalline basement behind and beneath it, have been modelled using finite element analysis, assuming a visco-elastic Maxwell rheology for the rocks involved.
Park, M.J.M.
core  

Eocene Initiation of the Cascadia Subduction Zone: A Second Example of Plume-Induced Subduction Initiation?

, 2019
Includes supplementary material.The existing paradigm for the major ca. 56-48 Ma subduction zone reorganization in the Pacific Northwest of North America is that: (1) the Siletzia large igneous province erupted offshore to the west of North America ...
Stern, Robert J., Dumitru, T. A.
core   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2618-2633, September 2026.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source

Great earthquakes along the Western United States continental margin: implications for hazards, stratigraphy and turbidite lithology [PDF]

Natural Hazards and Earth System Sciences, 2012
We summarize the importance of great earthquakes (<i>M</i>_w &gtrsim; 8) for hazards, stratigraphy of basin floors, and turbidite lithology along the active tectonic continental margins of the Cascadia subduction ...
C. H. Nelson, J. Gutiérrez Pastor, C. Goldfinger, C. Escutia   +3 more
doaj   +1 more source