Results 71 to 80 of about 2,047 (206)

Earthquake Nucleation on Geometrically Complex Faults [PDF]

, 2009
We have employed numerical approaches to study earthquake nucleation on geometrically complex faults governed by either slip-dependent friction or rate- and state- dependent friction.
Fang, Zijun
core  

Complex Shallow Unilateral Rupture of the 2025 Mw 7.0 Hubbard Glacier Earthquake Terminated by a Restraining Bend on the Connector Fault

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Despite decades of study, the detailed geometry of the Connector fault at the Alaska–Canada border remains poorly constrained. We investigate the rupture complexity and directivity of the 6 December 2025, Mw 7.0 Hubbard Glacier earthquake using hypocenter relocations, moment tensor inversions of the mainshock and aftershocks, and finite‐fault ...
Mohammadreza Jamalreyhani, Fenglin Niu, Simone Cesca, Eric Bergman   +3 more
wiley   +1 more source

A Systematic Comparison of Alpha‐Synuclein Seed Amplification Assays for Increasing Reproducibility

Annals of Clinical and Translational Neurology, Volume 13, Issue 6, Page 1088-1105, June 2026.
ABSTRACT Seed amplification assays (SAAs) enable ultrasensitive detection of misfolded α‐synuclein across biofluids and tissues. Yet, heterogeneity in protocols limits cross‐study comparability and clinical translation. Here, we review α‐synuclein SAA methods and their performance across various biological matrices.
Manuela Amaral‐do‐Nascimento, Daniela F. Santos, Tuane C. R. G. Vieira, Tiago F. Outeiro   +3 more
wiley   +1 more source

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 465-481, June 2026.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

Editorial: Pre-earthquake observations and methods for earthquake forecasting and seismic hazard reduction

, 2023
Understanding the governing principles, which include long-term tectonic loading, sluggish nucleation, and rapid fracture propagation, enables estimation of the stress level and change during geophysical observations in seismically active locations ...
Ying Li, Vallianatos, Filippos, Fu, Yuanyuan, Li, Ying, Martinelli, Giovanni, Yuanyuan Fu, Giovanni Martinelli, Filippos Vallianatos   +7 more
core   +1 more source

Molecular Insights Into the Water Freezing on Kaolinite Surfaces: The Key Role of Surface Properties

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 8, Page 3530-3545, 10 June 2026.
ABSTRACT Unfrozen water content is a key factor governing the physical properties of frozen soils, and variations in mineral surface properties play a critical role in determining this content. However, the fundamental physical mechanisms of how different mineral surfaces affect soil water freezing remain poorly understood.
Yijie Wang, Zhen‐Yu Yin, Pierre‐Yves Hicher   +2 more
wiley   +1 more source

Earthquake nucleation on faults with nonconstant normal stress [PDF]

Journal of Geophysical Research, 2011
[1] Previous studies have found that earthquake nucleation on faults with rate-and-state dependent constitutive properties is a time dependent process involving evolution of slip rate v and frictional state variable θ. The evolution of θ is governed by an extended aging law, which accounts for the effects of normal stress variations.
Z. Fang, J. H. Dieterich, K. B. Richards-Dinger, G. Xu   +3 more
openaire   +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

Fluid‐Driven Cohesive Strengthening: Critical Role of Reaction Kinetics as the Determinant for Frictional Stability

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Following an earthquake, faults lock and regain strength via a combination of healing mechanisms that include pressure solution, contact growth, and cementation. Fault healing dictates strength recovery during the seismic cycle and is therefore a key factor controlling earthquake recurrence intervals, stress drop, and other source properties ...
R. Affinito, G. Volpe, L. Calzolari, T. Mittal, G. Pozzi, C. Marone   +5 more
wiley   +1 more source

The Role of Fluids in Fault Mechanics: A 16‐Year Analysis of the Irpinia Seismicity (Southern Italy)

Geophysical Research Letters
Fluids in the crust influence earthquake nucleation by affecting fault strength and rupture dynamics, but direct observations at seismogenic depths are rare.
G. M. Adinolfi, F. Guiñez‐Rivas, J. Campos, R. De Matteis   +3 more
doaj   +1 more source