Results 51 to 60 of about 1,261 (134)

Constraining Fault Kinematics and India‐Tarim Convergence Partitioning in Southwestern Tibet With Geodetic Block Modeling

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract How the convergent strain between the India Plate and the Tarim basin is partitioned by active faults and off‐fault deformation in southwestern Tibet is poorly understood due to limited knowledge of strain localisation and fault kinematics. In this study, we derive high‐resolution velocity fields for the southwestern Tibetan Plateau using both
Dehua Wang   +4 more
wiley   +1 more source

Modulation of Slow Slip Event Characteristics Throughout the Costa Rica Subduction Zone Earthquake Cycle

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Slow slip events (SSEs) represent an aseismic transient slip mode that repeats quasi‐periodically, near or partially overlapping with the megathrust earthquake zone. However, the process of stress interaction between SSEs and earthquake zones is not clearly understood.
Luhong Lu, Yajing Liu
wiley   +1 more source

Melt Production and Volatile Release From Thermochemical Mantle Plumes

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Mantle plumes are thought to generate Large Igneous Provinces (LIPs), the largest outpourings of lava in the geologic record, which are associated with long‐lasting climatic warming events and mass extinctions. However, the controls on mantle degassing by plumes remain poorly constrained.
Qianyi Lu   +2 more
wiley   +1 more source

Enhanced Melt Supply Promotes Near‐Symmetric Oceanic Crustal Accretion at the Ultraslow Eastern Gakkel Ridge

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Variations in melt supply can shift slow and ultraslow ridges between magmatic and tectonic accretion modes, but whether this effect persists at Earth's slowest‐spreading ridge remains unclear. The eastern Gakkel Ridge provides a critical test because it spreads at only ∼6–10 mm/yr yet shows anomalously strong magmatism.
Chaojin Huang   +4 more
wiley   +1 more source

Position of the Lhasa Terrane and Two‐Stage Crustal Shortening During the India–Asia Collision

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The paleolatitudinal change of the Lhasa Terrane is critical for estimating the timing of the India–Asia collision and associated syn‐to post‐collisional crustal shortening, but its paleoposition is highly debated. Here we present integrated geochronologic and paleomagnetic results from the Lower Eocene Nianbo Formation in the Linzhou Basin ...
Zhenhua Jia   +6 more
wiley   +1 more source

Peak Ground Velocity Constrains the Scaling and Variability of Seismic Radiated Energy

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Seismic radiated energy is fundamental to earthquake physics, yet its scaling remains debated. Two conflicting views—magnitude‐invariant apparent stress and systematically increasing apparent stress—have persisted partly because source spectral estimates are poorly constrained.
S. Shimmoto, F. Cotton
wiley   +1 more source

Micromechanical Insights Into the Cyclic Behavior of Fault‐Valve Systems

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Cyclic fluid pressurization can promote repeated fault reactivation and transient permeability changes, a behavior often discussed within the fault‐valve concept in which faults alternate between acting as hydraulic barriers and conduits. To investigate the micromechanical processes involved during fluid induced reactivations, we simulate ...
Oussama Larkem   +2 more
wiley   +1 more source

A Unified Quadratic Scaling Relation Between Potency and Local Earthquake Magnitudes for −1.8 ≤ ML ≤ 7.5

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Quantifying earthquake size across scales requires linking physical source parameters to empirical magnitude measures, especially for microearthquakes where attenuation, scattering, and instrumental limitations complicate source characterization.
Zaiwang Liu   +4 more
wiley   +1 more source

Analysis of the Correlation Between Post‐Injection Wellhead Pressure Decay and Trailing Seismicity

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Fluid injection during reservoir stimulation aims to enhance reservoir permeability but induces seismic activity that persists for hours to months after injection has stopped. In this study, we investigate the correlation between the post‐injection wellhead pressure decay and the decrease in seismicity rate using data from multiple Enhanced ...
R. Minetto   +3 more
wiley   +1 more source

Decadal Creep Acceleration on the Northern Japan Trench Driven by Erosion of Heterogeneously Locked Asperities

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Geodetic and seismic observations before the 2011 Mw 9.0 Tohoku‐oki earthquake indicate decadal‐scale acceleration of aseismic slip along the northern Japan Trench, but the mechanism remains debated. We show that this transient can be explained by creep‐front propagation that progressively erodes heterogeneously locked asperities.
Kaj M. Johnson, Eric D. Burton
wiley   +1 more source

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