名词
中文翻译：地震活动起始
同义词：
['seismic event', 'seismic activity', 'seismic initiation']
例句：
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1. The earthquake was caused by the sudden release of energy from a deep fault in the earth's crust.
这次地震是由地球地壳深处突然释放的能量引起的。
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2. The seismic activity in this region has been increasing recently, indicating that an earthquake may occur soon.
该地区的地震活动最近一直在增加，这表明不久将会发生一次地震。
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3. The seismic onset is typically associated with the formation of new faults and the movement of tectonicplates.
地震活动的开始通常与新断层的形成和构造板块的运动有关。