Results 21 to 30 of about 230,131 (78)
Abstracts: This work analyzed the electromagnetic field (EM) anomalies recorded by the electric field detector (EFD) and the search coil magnetometer (SCM) onboard the China Seismo-Electromagnetic Satellite (CSES) during the two earthquakes (EQ), which are the Yangbi Ms6.4 EQ on May 21 (China Standard Time, CST) and the Madoi Ms7.4 EQ on May 22 (CST ...
Qiao Wang +19 more
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2021年玛多MW7.4地震强震加载及其对周围地区应力扰动的影响
2021年5月22日在青海玛多发生MW7.4地震,为了探究玛多地震的不同滑动模型对周围地区及断层应力的加卸载作用,本文首先以GNSS数据为约束,结合中国地震局地质研究所公布的玛多地震同震滑动模型(模型A)断层面几何结构反演获得同震滑动模型(模型C),再分别利用模型A、模型B(USGS)、模型C计算玛多地震对周围地区及断层的应力加卸载作用。结果显示:① 模型C矩震级为MW7.46,最大滑动量为3.39 m,主体破裂位于0—10 km深度范围,整体破裂东侧大于西侧,滑动分布相对于模型A也更加均匀平滑 ...
Shuaipeng Wang, Keke Xu, Xiaoyi Wang
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2021年5月22日玛多MS7.4地震震前岩石圈磁场变化特征分析
本文利用2019年和2020年两期的全国流动地磁矢量数据,针对玛多MS7.4地震震中附近的岩石圈磁场空间分布,分析研究了岩石圈磁场各个分量的震前变化特征。结果表明,玛多MS7.4地震发生前,震中附近的岩石圈磁场分量均发生了不同程度的变化:震中位于各分量的弱变化区域和零变线附近;震中位于各分量的高梯度带和低梯度带之间。本文证实了地震发生前会引起岩石圈磁场变化这一现象,并总结了震前地磁分量的变化特征,为今后强地震(尤其是M≥7.0地震)的震磁关系研究提供了一个震例参考。
Chao Dong +4 more
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Structural Damage Evaluation: Theory and Applications to Earthquake Engineering [PDF]
The further development of performance-based earthquake engineering (PBEE) is on the current agenda of the earthquake engineering community. A part of assessing the seismic performance of civil engineering structures involves estimation of seismic damage.
Shaikhutdinov, R. V. +1 more
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The Dataset contain clipped waveforms, relocation earthquake catalog and contrained grid points.
Cheng Chuang +7 more
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The dataset contains clipped waveforms (the original and restored waveforms) of mainshocks in Section 2, the seismic data downloaded from CENC in Section 2, relocation earthquake sequence by hypoDD in Section 2, and fault line used in backprojection in Section 3.
Chuang, Cheng +8 more
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Earthquake Source Characterization Using 3D Numerical Modeling [PDF]
To understand the physics of earthquakes, it is important to know what happens during individual events. Dissembling the information about the source process from the recorded seismograms is a difficult and non-unique process, as there are severe trade ...
Hjörleifsdóttir, Vala
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EXTENDED FRAMEWORK FOR EARTHQUAKE AND TSUNAMI RISK ASSESSMENT: PADANG CITY A CASE STUDY [PDF]
The Great Sumatra earthquake and resulting devastating tsunami in 2004 have highlighted the significance of earthquake risk assessment that can effectively include all main associated hazards, such as tsunami.
Mulyani, Rini
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Contribution of Turkish Scholars to Earthquake Literature: The Impact of the Marmara Earthquake [PDF]
This paper addresses the question of whether the Marmara Earthquake of August 17, 1999, has had an impact on the contribution of Turkish scholars to the earthquake literature.
TAŞKIN, ZEHRA +2 more
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Post-earthquake assessment of moderately damaged reinforced concrete plastic hinges
Modern reinforced concrete buildings are often designed to dissipate energy during strong earthquakes by permitting the controlled formation of plastic hinges. Plastic hinges require assessment of residual capacity in post-earthquake situations. However,
Marder, K +3 more
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