Results 61 to 70 of about 910 (180)

Along‐Strike Coupling Heterogeneity in Cascadia's Slow‐Slip Zone Constrained by GNSS and Reduced‐Order Rate‐And‐State Friction Modeling

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Slow slip events (SSEs) in the Cascadia subduction zone exhibit along‐strike segmentation, where the central segment has longer recurrence intervals but smaller moments. We quantify the controls on this variability by combining geodetic inter‐SSE coupling inversion with Bayesian inference of a quasi‐dynamic rate‐and‐state friction SSE‐cycle ...
Yohai Magen, Alice‐Agnes Gabriel, Dave A. May   +2 more
wiley   +1 more source

Laboratory earthquakes decipher control and stability of rupture speeds

Nature Communications, 2023
Earthquakes are destructive natural hazards with damage capacity dictated by rupture speeds. Traditional dynamic rupture models predict that earthquake ruptures gradually accelerate to the Rayleigh wave speed with some of them further jumping to stable ...
Peng Dong, Kaiwen Xia, Ying Xu, Derek Elsworth, Jean-Paul Ampuero   +4 more
doaj   +1 more source

Hydrogen‐Dominated Iron Phase Stability and the Structure of the Earth's Inner Core

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The crystal structure of Earth's inner core (IC) remains debated, with the free energy difference between hexagonal close‐packed (hcp) and body‐centered cubic (bcc) iron under IC conditions being very small. We use ab initio and machine learning force field molecular dynamics simulations to show that hydrogen can strongly influence the phase ...
Qianxi Chen, Feiwu Zhang, Joshua M. R. Muir   +2 more
wiley   +1 more source

Aseismic Slip Along the Evaporite‐Rich Strike‐Slip Katouna‐Stamna Fault in Greece

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Aseismic slip has been observed on many active faults globally, but its controlling mechanisms remain unclear. This study focuses on the NW‐striking, left‐lateral Katouna‐Stamna Fault in Western Greece. We use InSAR surface deformation measurements to confirm the presence of aseismic slip and compare this behavior with structural evidence from
Joel Szrek, Silvia Crosetto, Sabrina Metzger, Giorgio Gomba, Claudio Faccenna, Romain Jolivet   +5 more
wiley   +1 more source

Characterization of nucleation during laboratory earthquakes

Geophysical Research Letters, 2013
We observe the nucleation phase of in‐plane ruptures in the laboratory. We show that the nucleation is composed of two distinct phases, a quasi‐static and an acceleration stage, followed by dynamic propagation. We propose an empirical model which describes the rupture length evolution: The quasi‐static phase is described by an exponential growth while ...
Latour S., Schubnel A., Nielsen S., Madariaga R., VINCIGUERRA, Sergio Carmelo   +4 more
openaire   +3 more sources

Foreshocks, aftershocks, and static stress triggering of the 2020 Mw 4.8 Mentone Earthquake in west Texas

Seismica
Foreshocks are the most obvious signature of the earthquake nucleation stage and could, in principle, forewarn of an impending earthquake. However, foreshocks are only sometimes observed, and we have a limited understanding of the physics that controls ...
David C. Bolton, Nadine Igonin, Yangkang Chen, Daniel T. Trugman, Alexandros Savvaidis, Peter Hennings   +5 more
doaj   +1 more source

Plume‐Fed Magmatic Fluids Weakened Crust and Promoted a Large Intraplate Earthquake in Northern Hainan (South China)

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract Large intraplate earthquakes are paradoxical because they occur far from active plate boundaries. Northern Hainan Island (South China) hosts the 1605 Qiongbei M7.5 earthquake within a volcanic province linked to the Hainan mantle plume. New shear‐wave velocity images reveal two shallow low‐velocity zones extending to ∼10 km depth: a stronger ...
Lue Yang, Lun Li, Chen Cai, Jialong He, Hongyi Li, Yulong Xue, Jinming Zhang, Yuan Gao, Ziwei Li, Rui Gao   +9 more
wiley   +1 more source

19 Clustered Foreshock Sequences Along the San Jacinto Fault Zone: Possible Role of Frictional Heterogeneity in Extended Earthquake Nucleation

Geophysical Research Letters
Laboratory experiments and theoretical models suggest that earthquakes are preceded by extended nucleation phases, perhaps by slow but accelerating slip. However, such nucleation phases are hard to observe before natural earthquakes.
Hui Huang, Jessica C. Hawthorne
doaj   +1 more source

Graphene‐Based Conductive Polymer Composites for Piezoresistive Sensors: Materials, Sensing Mechanisms, and Performance

Macromolecular Materials and Engineering, Volume 311, Issue 9, September 2026.
Graphene‐based conductive polymer composites are revolutionizing next‐generation piezoresistive sensors through synergistic conductive networks, ultrahigh sensitivity, and mechanical flexibility. This review critically analyzes recent advances in fabrication strategies, electromechanical sensing mechanisms, and quantitative performance metrics, while ...
Tran Van Khai, Nguyen Xuan Sang, KK Sadasivuni, Kumud M. Tripathi, Dusan Losic, Tran Thanh Tung   +5 more
wiley   +1 more source

Deformation Patterns and Rupture Mechanisms of the Longitudinal Valley Fault in Eastern Taiwan: Insights From Three‐Dimensional Discrete Element Modeling

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Active faults exhibit complex geometric features, with rupture processes controlled by the coupled effects of tectonic loading, fault geometry, and internal displacement heterogeneity. To elucidate the interrelationship between long‐term deformation, stress redistribution, and rupture evolution, we constructed a three‐dimensional numerical ...
X. F. Guo, Y. Aoki, J. H. Li
wiley   +1 more source