Results 81 to 90 of about 1,753,793 (305)

Correction to: Which is heterogeneous, stress or strength? An estimation from high-density seismic observations

Earth, Planets and Space, 2018
After publication of this work [1], an error was noticed. Figures 10 and 12 were accidentally swapped. This was caused due to a typesetting error. This is now corrected below: The publisher apologises for these errors.
Yoshihisa Iio, Itaru Yoneda, Masayo Sawada, Tsutomu Miura, Hiroshi Katao, Yoichiro Takada, Kentaro Omura, Shigeki Horiuchi   +7 more
doaj   +1 more source

Observations of stress relaxation before earthquakes [PDF]

, 2004
Theory and observations suggest that seismic shear wave splitting, caused by fluid-saturated stress-aligned microcracks, directly monitors low-level deformation before fracturing, faulting and earthquakes occur.
Gao, Yuan, Crampin, Stuart
core   +1 more source

The damage and failure mechanism of prestatically loaded rock during medium‐strain rate cyclic impact loading

Deep Underground Science and Engineering, EarlyView.
Based on experimental results and theoretical analysis, an established rock damage accumulation model that comprehensively considers the preapplied static load, impact peak value, impact frequency, and impact times. Abstract To study the rock damage mechanism under high static loading and superimposed medium strain rate cyclic impact loading, a series ...
Wei Wang, Hanpeng Wang, Zicheng Wang, Xinyuan Xie, Yunhao Wu, Jinhou Zhang, Dekang Sun   +6 more
wiley   +1 more source

Regional stress field in Yunnan revealed by the focal mechanisms of moderate and small earthquakes

Earth and Planetary Physics, 2019
We determined focal mechanism solutions of 627 earthquakes of magnitude M ≥ 3.0 in Yunnan from January 2008 to May 2018 by using broadband waveforms recorded by 287 permanent and temporary regional stations.
JianHui Tian, Yan Luo, Li Zhao
doaj   +1 more source

A comparison of the governance landscape of earthquake risk reduction in Nepal and the Indian State of Bihar [PDF]

, 2016
On 25 April 2015, a Mw 7.8 earthquake struck central Nepal, killing more than 8,700 people. An earthquake of this magnitude has long been anticipated in Nepal and the neighbouring northern Indian state of Bihar, which straddle the active Himalayan ...
Jones, Samantha, Oven, Katie J., Wisner, B., Oven, Katie, Jones, S., Wisner, Ben, Oven, K.J.   +6 more
core   +1 more source

Critical expansion points: Mechanical signs of surrounding rock instability

Deep Underground Science and Engineering, EarlyView.
This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen, Chang Deng, Haijun Wang, Lei Tang, Jihong Yu   +4 more
wiley   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

Modelling psychological responses to the great East Japan earthquake and nuclear incident [PDF]

, 2012
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited - Copyright @ 2012
Sun, Shaojing, Stanley O. Gaines Jr. (161044), Gaines Jr, Stanley O., 高橋, 征仁, Gaines, SO, Shaojing Sun (161036), Robin Goodwin, Takahashi, M, Masahito Takahashi, Robin Goodwin (161022), Masahito Takahashi (161029), Sun, S, Goodwin, R, Shaojing Sun, Goodwin, Robin, Stanley O Gaines   +15 more
core   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

2022 Mw 6.6 Luding, China, Earthquake: A Strong Continental Event Illuminating the Moxi Seismic Gap

, 2023
On 5 September 2022, an Mw 6.6 strike-slip earthquake occurred in Luding, Sichuan, China. It illuminates the seismic gap on the southern end of Xianshuihe fault zone, that is Moxi segment, and is the most damaging earthquake in Chinese Mainland since ...
Fang, Lihua, Jiang, Ce, Zhu, Aiyu, Yijian Zhou, Yan, Lijun, Zhou, Yijian, Wang, Shiguang, Wu, Jianping, Long Zhang, Zhang, Long, Shanshan Liang, Shiguang Wang, Ce Jiang, Yuexin Li, Lihua Fang, Bo Li, Jinrong Su, Zhang, Xu, Xu Zhang, Lijun Yan, Jianping Wu, Liang, Shanshan, Li, Bo, Su, Jinrong, Aiyu Zhu, Li, Yuexin   +25 more
core   +1 more source