并根据当前的地震活动图象，讨论了四川地震趋势。
The seismic trend in Sichuan is discussed in this paper based on cur-rent seismicity pattern.
地震活动图象无论在时间上还是在空间上都具有层层嵌套的自相似结构。
Seismicity patterns have multi-level-nested self-similarity structure both temporally and spatially.
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。
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.
研究地震活动图象而引入的地壳屈曲，从地壳为一层状结构物的基本事实出发，对很多地震前兆现象可做出自己的解释。
Being introduced to investigate seismic pattern, crustal buckling can explain many earthquake precursor phenomena according to the layered structure of crust.
根据1500年以来的地震活动，用确定性方法对华北地区地震地面危害分布图进行了定量计算。
From the strong earthquake activities since 1500, the seismic ground hazard map in North China is assessed using a deterministic approach method.
信号震、前兆震群和前震(包括早期前震)的确定应考虑到异常的地震活动时空图象。
Signal shock and precursory earthquake swarm and foreshock activities always accompany the anomalous space-time patterns of seismic 'ty.
震前地震活动性异常图象与强震孕育过程有关，反映了区域应力场应力变化过程。
The abnormal patterns of the moderate earthquakes were related to the developments of the large events, reflecting the processes of the stress variations in the regional stress fields.
本文对思茅、普洱地震区1972年——1981年期间，强震前的小震活动图象进行了分析讨论。发现，中强震前有震面积百分比逐渐增高，在达到峰值时往往有强震发生。
In this paper, activity patterns of small earthquakes before strong ones in the Simao-Puer seismic area during 1972-1981 have been analysed and discussed.
本文对思茅、普洱地震区1972年——1981年期间，强震前的小震活动图象进行了分析讨论。发现，中强震前有震面积百分比逐渐增高，在达到峰值时往往有强震发生。
In this paper, activity patterns of small earthquakes before strong ones in the Simao-Puer seismic area during 1972-1981 have been analysed and discussed.
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