foreshock

F4O1R1E1S1H4O1C3K5

noun

A small earth tremor which precedes the mainshock in an earthquake sequence.

Scrabble 21

Meanings

nounforeshock (plural foreshocks)

plural foreshocks

  1. geographyA small earth tremor which precedes the mainshock in an earthquake sequence.
  2. figurativelyAny shock or disturbance that precedes an event

    The FY 1981 increases in defense — something of a "foreshock" to the rapid rise in defense spending over the next several years — were prompted by the fall of the Shah in Iran and the Soviet invasion of Afghanistan.

    1991, D. Roderick Kiewiet, Mathew D. McCubbins, The Logic of Delegation - Page 88

Origin

Translations

Chinese Mandarin 前震
  • 前震 (qiánzhèn)tremor preceding the mainshock in earthquake
Finnish esijäristys
  • esijäristystremor preceding the mainshock in earthquake
Greek προσεισμός
  • προσεισμός (proseismós)tremor preceding the mainshock in earthquake
Hungarian előrengés
  • előrengéstremor preceding the mainshock in earthquake
Irish réamhchrith
  • réamhchrithtremor preceding the mainshock in earthquake
Japanese 前震
  • 前震 (zenshin)tremor preceding the mainshock in earthquake
Polish wstępne trzęsienie ziemi o słabej magnitudzie
  • wstępne trzęsienie ziemi o słabej magnitudzietremor preceding the mainshock in earthquake
Spanish sismo inicial, sismo premonitor
  • sismo inicialtremor preceding the mainshock in earthquake
  • sismo premonitortremor preceding the mainshock in earthquake
Cite this entry
APA

foreshock. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/foreshock

MLA

“foreshock.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/foreshock. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “foreshock,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/foreshock.

Source: foreshock on Wiktionary, CC BY-SA 4.0.