The United States Geological Survey said Tuesday's initial 6.3-magnitude quake was followed by various aftershocks, and itself was part of an aftershock sequence from last September's quake.
2
广东省一地震专家25日表示，24日中日俄三地接连发生的地震分属不同构造背景，不具关联性。
The quakes hitting China, Japan, and Russia Thursday were under different geotectonic circumstances, and so they had nothing to do with each other, a Guangdong seismological expert said Friday.
3
并用花岗岩块体受压实验结果初步探讨了中强地震连发及其调制比时空展布特征的构造活动。
The pressure test on granite has researched into the tectonic activities between the continuous occurrence of strong earthquakes and its spatial-temporal characteristics of modulation ratio.
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