Results 51 to 60 of about 910 (180)

Implications of a percolation model for earthquake ‘nucleation’ [PDF]

Geophysical Journal International, 1998
A percolation model is applied to the explanation of some of the qualitative and quantitative aspects associated with the recent observations of earthquake ‘nucleation’. An additional assumption is introduced that nucleation starts at the critical point of percolation.
openaire   +1 more source

FEM simulations of seismic cycle along a complex normal fault

Frontiers in Earth Science
In the assessment and prediction of seismic hazards, developing numerical methods capable of accurately simulating long-term earthquake cycles in complex fault systems is of critical importance.
Zefei Cui, Shoubiao Zhu, Chong Xu
doaj   +1 more source

Effects of frictional properties of quartz and feldspar in the crust on the depth extent of the seismogenic zone

Progress in Earth and Planetary Science, 2019
The depth extent of the crustal seismogenic zone is closely related to the size of earthquakes. The mechanisms that control the depth of the lower transition of the seismogenic zone are important issues in seismology and disaster mitigation.
Koji Masuda, Takashi Arai, Miki Takahashi   +2 more
doaj   +1 more source

How Much Physics Should a Neural Network Know? Thermodynamics‐Informed Neural Networks for Rock Constitutive Modeling With Epistemic Uncertainty

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Machine learning offers a flexible route to constitutive modeling, with two emergent questions for geoscience applications: what level of thermodynamic constraint should be embedded in the network architecture, and how should predictive uncertainty be quantified when extrapolating from laboratory to field conditions? We address both challenges
Kangan Li, Tushar Mittal, Benjamin K. Holtzman, Seth Saltiel   +3 more
wiley   +1 more source

How frictional ruptures and earthquakes nucleate and evolve

Nature
Frictional motion is mediated by rapidly propagating ruptures that detach the ensemble of contacts forming the frictional interface between contacting bodies1-7. These ruptures are similar to shear cracks. When this process takes place in natural faults, these rapid ruptures are essentially earthquakes8,9. Although fracture mechanics describe the rapid
Gvirtzman, Shahar, Kammer, David, Adda-Bedia, Mokhtar, Fineberg, Jay   +3 more
openaire   +3 more sources

Adapting a Pretrained LLM to Rapidly Recover Earthquake Magnitude and Location

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Determining earthquake magnitude and location through fast, automated methods is fundamental for seismic monitoring. Recent studies have shown that Large Language Models (LLMs) can operate as pattern‐recognition systems capable of handling novel domains and purely numerical tasks.
Aurora Bassani, Daniele Trappolini, Giulio Poggiali, Elisa Tinti, Fabio Galasso, Alberto Michelini, Chris Marone   +6 more
wiley   +1 more source

Off-fault deformation feedback and strain localization precursor during laboratory earthquakes

Communications Earth & Environment
Recent large-scale seismological observations have shown that off-fault strain localization and foreshock migration could serve as an early warning of an impending earthquake. However, this process is still largely unknown.
Gabriel G. Meyer, Carolina Giorgetti, Simon Guérin-Marthe, Marie Violay   +3 more
doaj   +1 more source

Stress transmission along mid-crustal faults highlighted by the 2021 Mw 6.5 San Juan (Argentina) earthquake

Scientific Reports, 2022
Understanding the mechanisms of crustal deformation along convergent margins is critical to identifying seismogenic structures and assessing earthquake hazards for nearby urban centers. In the southern central Andes (28–33 $$^{\circ }$$ ∘ S), differences
Jean-Baptiste Ammirati, Chelsea Mackaman-Lofland, Martin Zeckra, Kevin Gobron   +3 more
doaj   +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

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