foreshock / ˈfɔrˌʃɒk, ˈfoʊr- /

📖毕业后词汇前震前震荡前所未有的震荡前兆

foreshock 的定义

n. 名词 noun

Geology.

  1. a relatively small earthquake that precedes a greater one by a few days or weeks and originates at or near the focus of the larger earthquake.