Results 81 to 90 of about 825 (168)

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

Probabilistic Identification of Parameters in Dynamic Fracture Propagation

International Journal for Numerical Methods in Engineering, Volume 127, Issue 4, 28 February 2026.
ABSTRACT In this paper, we propose a novel multiphase approach for identifying input parameters in dynamic fracture propagation. Often, such parameters are partially known and uncertain with incomplete input data, resulting in challenges in predicting a reliable dynamic failure response.
Andjelka Stanić, Mijo Nikolić, Hermann G. Matthies, Noémi Friedman   +3 more
wiley   +1 more source

Foreshocks of the 2016 MS5.1 Yunlong earthquake in Western Yunnan, China, and implications for earthquake nucleationKey points

Earthquake Science
Monitoring the evolution of foreshocks can be a valuable way to analyze the nucleation process. Foreshocks accompanying moderate mainshocks have been recorded in the west of Yunnan Province, China.
Gaohua Zhu, Hongfeng Yang, Yingying Zhang   +2 more
doaj   +1 more source

How Fault Zone Fabric Controls the Hydro‐Mechanical Behavior and Evolution of Critical State Shearing in Clay Shale

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Understanding the hydro‐mechanical behavior of faults in clay‐rich formations is essential for earthquake mechanics and underground storage applications. We conducted fully hydro‐mechanically coupled triaxial tests on preserved fault material from scaly clay sections of the Opalinus Clay formation.
L. Winhausen, M. Ziegler, F. Amann
wiley   +1 more source

Detecting sub-instability before three Mw > 6.0 earthquakes on Chinese mainland in 2020–2022 with load/unload response ratio

Geomatics, Natural Hazards & Risk
The sub-instability refers to a stress state that exists between the maximum stress the rock can withstand and its final failure. This stress state should be an indicator of impending large earthquakes, as it occurs in the final stage of earthquake ...
Huaizhong Yu, Donghui Jia, Chieh-Hung Chen, Yue Liu, Haitao Wang, Jie Liu, Rui Yan, Binbin Zhao, Jianming Liu, Yuchuan Ma, Guihong Han, Wen Yang, Zhengyi Yuan, Zeping Li   +13 more
doaj   +1 more source

Latitude-Time Total Electron Content Anomalies as Precursors to Japan's Large Earthquakes Associated with Principal Component Analysis

International Journal of Geophysics, 2011
The goal of this study is to determine whether principal component analysis (PCA) can be used to process latitude-time ionospheric TEC data on a monthly basis to identify earthquake associated TEC anomalies.
Jyh-Woei Lin
doaj   +1 more source

Seismomagnetic models for earthquakes in the eastern part of Izu Peninsula, Central Japan

Annals of Geophysics, 1997
Seismomagnetic changes accompanied by four damaging earthquakes are explained by the piezomagnetic effect observed in the eastern part of Izu Peninsula, Central Japan. Most of the data were obtained by repeat surveys.
Y. Ishikawa, Y. Sasai
doaj   +1 more source

Progress and perspectives in research on crustal stress and earthquakes

Dizhi lixue xuebao
Objective  The crustal stress state is a key physical parameter for understanding lithospheric dynamics, elucidating earthquake preparation mechanisms, and assessing regional seismic hazards.
YANG Shuxin, YAO Rui, LI Yujiang, HUANG Luyuan, HU Xingping   +4 more
doaj   +1 more source

Insights on Earthquake Nucleation Revealed by Numerical Simulation and Unsupervised Machine Learning of Laboratory-Scale Earthquake Nucleation

Abstract Understanding earthquake nucleation is vital for predicting and mitigating seismic events, saving lives, and enhancing construction practices in earthquake-prone areas. Cascade triggering and preslip triggering are prevalent theories, posing challenges in differentiation based on field observations.
William (Sheng Hua) Ye, Semechah Lui, R. Paul Young   +2 more
openaire   +1 more source

The mixed mechanisms of large‐earthquake nucleation

Eos, Transactions American Geophysical Union, 2013
Where do big earthquakes come from? That's an important open question in seismology. High‐energy earthquakes often come from faults under high strain, but the mechanism that underlies their onset is still debated.
openaire   +1 more source