Results 61 to 70 of about 8,882 (165)

The 2007 Ning'er Mw 6.1 Earthquake: A Shallow Rupture in Southwest China Revealed by InSAR Measurements

open access: yesEarth and Space Science, 2019
The Ning'er Mw 6.1 earthquake on 3 June 2007 occurred in the southwest to the Sichuan‐Yunnan rhombic block with complicated seismic structures. The focal depth determined by the U.S.
Wei Chen   +4 more
doaj   +1 more source

Coseismic and Postseismic Deformations of the 2023 Turkey Earthquake Doublet

open access: yesRemote Sensing
On 6 February 2023, an earthquake doublet of Mw 7.8 and Mw 7.5 occurred in southeastern Turkey and caused surface ruptures over 350 km for the eastern Anatolian fault (EAF) and 150 km for the Surgu fault (SF), respectively. Over 3700 Mw > 3.0 aftershocks
Chaoya Liu   +4 more
doaj   +1 more source

2022年青海门源MW6.6地震震源动力学破裂过程

open access: yesDizhen xuebao
2022年1月8日青海门源MW6.6地震在地表产生了较强的破坏,为研究门源地震产生强地表破裂及阻碍托莱山东段应力释放的构造背景,本文采用谱元法模拟了门源地震曲面分支断层在实际地形下的动力学破裂过程。结果显示,破裂自初始破裂点沿断层上倾方向同时发生双侧破裂;受震源区上方高速P波异常体的影响,断层产生非连续破裂。在破裂传播到托莱山东段时,断层的滑动速度和滑动量发生明显的阶跃式下降;此外,近地表处滑动速率约3.6 m/s的区域可能为强地面运动生成区 ...
Zhangdi Xie, Xiangwei Yu, Wenbo Zhang
doaj   +1 more source

Mechanical Properties, Slip and Nucleation of the 1999 Chia-Yi Earthquake: the Question of Static Stress Influence from the 1999 Chi-Chi Earthquake

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2006
We investigate the effects of static stress transfer from the 1999 Chi-Chi Taiwan earthquake to the subsequent Chia-Yi earthquake by using Coulomb failure assumptions.
Shu-Hao Chang Wei-Hau Wang
doaj   +1 more source

The Deformation Response of Hydrological Loading Due To Water Level Changes in Qinghai Lake

open access: yesWater Resources Research
Over the past 18 years, the water level of Qinghai Lake has risen by more than 4 m, resulting in a total mass increase of approximately 22 Gt. This increase may have impacted the surface deformation and fault activity within a 100 km radius of the lake ...
Chao Chen   +6 more
doaj   +1 more source

Developing a geomechanical model to predict breakdown pressure in a vertical borehole using failure analysis: a case study

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources
Breakdown is an important process in geomechanics; a very complex process in hydraulic fracturing which has been the subject of extensive research in the literature. There exist several models in the literature for predicting the breakdown pressure.
Majid Jamshidian   +3 more
doaj   +1 more source

D-InSAR-Based Analysis of Slip Distribution and Coulomb Stress Implications from the 2024 Mw 7.01 Wushi Earthquake

open access: yesRemote Sensing
On 23 January 2024, an Mw 7.01 earthquake struck the Wushi County, Xinjiang Uygur Autonomous Region, China. The occurrence of this earthquake provides an opportunity to gain a deeper understanding of the rupture behavior and tectonic activity of the ...
Yurong Ding   +5 more
doaj   +1 more source

水力压裂延迟活化断层的多场耦合数值模拟研究—以加拿大福克斯溪地区诱发地震为例

open access: yesDizhen xuebao
加拿大西部盆地的福克斯溪(Fox Creek)页岩气开采区自压裂开采以来,地震频度急剧增加,引发工业界和科学界的广泛关注。目前一些典型诱发地震案例的断层活化动力学机制尚未完全厘清。本文以2014年初福克斯溪地区Duvernay地层附近发生的地震群及构造为研究对象,开展地下断层受流体扰动而活化的多场耦合数值模拟研究。文中重点讨论的1号平台附近发生的诱发地震主要沿着两个较为清晰的发震断层发生,最大震级MW3.9事件发生于压裂井下方约1 km处的结晶基底内,并具有典型的延迟触发特点 ...
Hong Leng, Jun Hu
doaj   +1 more source

Three-dimensional limit equilibrium method for rock slopes by constructing normal stress distribution over sliding surface and its application

open access: yesYantu gongcheng xuebao
The researches on the three-dimensional stability of rock slopes are of important theoretical significance and engineering application prospect. The conventional equivalent Mohr-Coulomb strength parameters used to analyze the stability of rock slopes ...
LU Kunlin 1, MEI Yifan 1, WANG Linfei 2, JIA Senlin 1, QIN Tao 1, ZHU Dayong 3
doaj   +1 more source

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