foreshock
n. 前震
英英释义
Noun
- a tremor preceding an earthquake
例句
用作名词(n.)
- An increase in foreshock activity triggered the evacuation warning.前震活动的增加引发了疏散警报。
- In the Pacific Northwest, there is no evidence of foreshock activity for most historic earthquakes.在太平洋西北地区，历史上的大多数地震都没有前震活动的证据。