[ af-ter-shok, ahf- ]
/ ˈæf tərˌʃɒk, ˈɑf- /


a small earthquake or tremor that follows a major earthquake.
the effect, result, or repercussion of an event; aftermath; consequence: The aftershock of the bankruptcy was felt throughout the financial community.

Origin of aftershock

First recorded in 1890–95; after + shock1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for aftershock

British Dictionary definitions for aftershock

/ (ˈɑːftəˌʃɒk) /


one of a series of minor tremors occurring after the main shock of an earthquakeCompare foreshock
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for aftershock

[ ăftər-shŏk′ ]

A less powerful earthquake that follows a more forceful one. Aftershocks usually originate at or near the focus of the main earthquakes they follow and can continue for days or months. They usually decrease in magnitude and frequency with time.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.