Home > Terms > English, UK (UE) > Foreshock

Foreshock

An earthquake that is smaller than, and precedes, a "mainshock". Foreshocks tend to occur in the same area as the mainshock. Foreshocks have not been observed before damaging earthquakes in British Columbia.

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  • Part of Speech: noun
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  • Industry/Domain: Earth science
  • Category: Seismology
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