It indicated that the geomagnetic anomaly is a promising phenomenon in the studies of earthquake precursors.
说明地磁异常变化是一种有希望的地震前兆现象。
Before the Datong earthquake, water radon in many Wells showed trend positive anomalies, which is obviously different with the hydrochemical precursors of Zhangbei earthquake.
大同地震前多井出现水氡的趋势性正异常，是与张北地震水化前兆最显著的不同之处。
Based on the results of rock fracture experiments and the theory of seismic precursors, the preparation process of the earthquake is divided into several stages.
根据岩石破裂实验结果和地震前兆理论，对这次地震的孕育过程作了阶段性的划分。
An automatic radon measuring instrument type JSZ-2 for observing the continuous change of radon concentration of underground water in the search of earthquake precursors is described in this paper.
本文描述了一种可用于试验研究地震前兆，观测地下水中氡气浓度连续变化的设备——JSZ - 2型自动测氡仪。
The existence of hard inclusion may cause a great influence to variations of earthquake precursors.
硬包体的存在对地震前兆变化会产生显著影响。
So the gas Rn in groundwater, which is a new observation item of earthquake precursors in groundwater, has an expansively developing prospects.
因此，逸出气氡作为新的地震前兆观测项目，具有广阔的发展前景。
In this paper, the physical base of the mean square deflection method extracting information of multi-parameter earthquake precursors has been studied.
本文研究了提取多参数无量纲地震前兆信息的均方差方法的物理基础。
The mechanism of many earthquake precursors is related to fluids deep inside the Earth.
许多地震前兆的机理与地球深部流体相关。
The chief purpose of this study is aimed to find some seismological criterion for earthquake precursors.
这些研究的一个共同宗旨是，试图寻求某种地震学方面的前兆特征，以便能够准确地预报地震。
The approach of the above evaluation method can also be applied to other non-earthquake precursors.
该方法及思路也可为其他非地震前兆的可信度评估所借鉴。
Fifth, there appeared trend anomalies of seismometry results and other microscopic precursors, implying that middle-term risk of strong earthquake exists in the determined monitoring region.
五是测震和其它微观前兆趋势性异常出现，说明所圈定监视区的中期强震危险性存在。
The synthetical risk degree of earthquake precursors is a new method of synthetical earthquake prediction based on systematic theory.
地震前兆综合危险度是以系统论为基础的一种综合地震预报的新方法。
This is another major scientific research activity undertaken by the State Seismological Bureau following the project of systematic studies of earthquake precursors from 1983—1985.
这是国家地震局继1983—1985年的地震前兆系统清理研究之后的又一重大科研活动。
The work of the paper is helpful to study the evolution processes of the rock with cracks and high velocity bodies and mechanism of earthquake precursors.
论文工作对于进一步研究含有随机裂纹与硬包体同时存在的岩石破裂演化过程以及研究地震空区和条带的生成条件具有较重要的参考意义。
This character can be used to predict the location of next earthquake, and it provides a chance for carrying out the measures of disaster mitigation and seizing the impending precursors.
利用这一特点，可以预报下次地震的位置，为实施减灾措施和捕捉短临前兆提供机会。
Far-field precursory anomalies always are the bi-or multi-precursors, and they have been examined by earthquake, so they are reliable anomalies for the prediction of sequential earthquakes;
远场前兆异常一般具有双重或多重前兆的性质，它们是比较可靠的前兆异常，可为预报地震提供依据；
Far-field precursory anomalies always are the bi-or multi-precursors, and they have been examined by earthquake, so they are reliable anomalies for the prediction of sequential earthquakes;
远场前兆异常一般具有双重或多重前兆的性质，它们是比较可靠的前兆异常，可为预报地震提供依据；
应用推荐