strong earthquake risk region 强震危险区
Medium-strong earthquake transition region 中强震过渡区
main region of strong earthquake 强震活动主体地区
Therefore, the application of grey system gm model to predicting strong earthquake sequences in the region of middle and southern segments of south-north seismic belt is feasible.
因此灰色系统GM模型在南北地震带中南段地区强地震序列预测中的应用是可行的。
We use statistical methods to study the recurrence behavior of strong earthquake on entireties of 7 active fault zones of Sichuan-Yunnan region based on historical earthquake data.
我们根据历史地震资料，采用统计学方法研究了川滇地区7条活动断裂带整体的强地震复发特征。
Before the moderately strong earthquakes in the region there are frequent seismic activity with magnitude of 4 or so and small earthquake swarms.
华南地区在中强震发生前有4级左右地震频繁活动和小震群频发的特点。
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