Smaller Earthquake That Precedes the Main Quake

This page is the CodyCross answer for the clue below from Culinary School, Group 2207, Puzzle 5 (Cheesecloth).

Question is: Smaller Earthquake That Precedes the Main Quake

and the answer is: FORESHOCK

Word Meaning:

FORESHOCK — (seismology) A small earth tremor which precedes the mainshock in an earthquake sequence.

Definitions from Wiktionary.