focal mechanism

By using the results of tectonic analysis, focal mechanism solution and site geo stress survey we get the predominant distribution of principal stress of tectonic stress field in the Jianghan Dongting basin and its vicinal areas in four periods since Cenozoic.

利用构造分析结果、震源机制解和现场应力测量资料，获得江汉洞庭盆地及邻区新生代4个时段构造应力场主应力的优势分布。

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Determination of focal mechanism using SH to p amplitude ratio

用SH波和P波振幅比确定震源机制解

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Focal mechanism and geodynamical feature;

震源机制解与震源动力学特征；

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To study regional average stress field, we need to choose a population of focal mechanism solutions of earthquakes in the massifs where there are significant tectonic structures.

选择具有地震构造意义的地块或地震带内大量地震的震源机制解研究区域平均应力场。

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The analysis on focal mechanism solutions of recent minor earthquakes in POHAI Straits and its vicinity

渤海海峡及邻区现代小震震源机制解分析

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The pre-seismic and post-seismic stress direction can be statistically determined by a large collection of foreshock and aftershock focal mechanism data while the stress drop can be determined through the source fracture inversion from seismic wave data or crust deformation data.

地震前后的应力方向可根据大量前震和余震震源机制统计给出；地震应力降可通过地震波或地壳形变资料的震源破裂反演研究得到。

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Fractal structure of the hypocenter distributions and focal mechanism solutions of acoustic emission in two granites of different grain sizes

两种不同粒度花岗岩中的声发射的震源分布分形结构和震源机制解

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Earthquake focal mechanism and its tectonic significance along the two sides of the Red River Fault Zone

红河断裂带两侧地震震源机制及构造意义

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Determination of Focal Mechanism by Using SH and P Wave Amplitude Ratio

利用SH波和P波振幅比测定中小地震的震源机制

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With the consideration of strike, dip and slip directions of focal mechanism, we have confirmed that Ibaraki earthquake is a thrust fault earthquake occurred under the Japan Trench.

结合震源机制的走向、倾向以及滑动方向等资料，确认属于日本海沟下方的俯冲带逆冲地震。

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Distribution of Hypocenter and Centroid Depths and Its Focal Mechanism Dependence

震源深度与矩心深度的分布特征及其与震源机制类型之间的关系

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In this paper, the main tectonic process of the Tangshan earthquake sequence was studied by comprehensive analysis of geological structures, seismicity pattern and focal mechanism data.

本文采用地质构造、地震活动图象、震源机制资料综合分析方法，对唐山地震序列主要的构造过程进行研究。

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The boundary constraint and force loading boundary condition for the model are determined according to the characteristics of crustal stress field deduced from earthquake focal mechanism and in situ stress measurement data.

结合震源机制解与原地应力测量资料，分析区域现代地应力场特征，确定了研究区的边界约束和动力边界条件。

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29 events among the studied earthquakes have available focal mechanism solutions.

其中有震源机制的地震29个。

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The source parameters and focal mechanism solution parameters of Lancang-Gengma earthquake, published in various internal journals and external EDR reports, have been gathered in this paper, and reasons that made difference between them have been discussed.

本文收集了国内各个单位和国外EDR报告给出的澜沧&耿马地震的震源参数和震源机制解参数，讨论了它们之间差别的原因。

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We used the results of focal mechanism solution to explain abnormal characteristics of tilt very well.

并用震源机制解的结果对地倾斜的异常特征作了较好的解释.

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The principal compressional stress axis obtaind through focal mechanism solutions show NNE and NW orientations.

由震源机制解求出的主压应力轴为北北东向和北西向.

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The focal mechanism is mainly left-lateral strike-slip, with a small thrust component.

震源机制主要是左旋走滑，带有很小的逆冲倾滑分量。

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Stress measurement anomaly distribute in four quadrants, the regions of tensile and compressive forces are related to the focal mechanism solution;

临震前应力测量异常显示四象限空间分布，张、压区域与震源机制解有明显相关性；

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