[ sahyz-mol-uh-jee, sahys- ]
/ saɪzˈmɒl ə dʒi, saɪs- /


the science or study of earthquakes and their phenomena.

Origin of seismology

First recorded in 1855–60; seismo- + -logy
Also called seismography.
Related formsseis·mo·log·ic [sahyz-muh-loj-ik, sahys-] /ˌsaɪz məˈlɒdʒ ɪk, ˌsaɪs-/, seis·mo·log·i·cal, adjectiveseis·mo·log·i·cal·ly, adverbseis·mol·o·gist, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for seismology

British Dictionary definitions for seismology


/ (saɪzˈmɒlədʒɪ) /


the branch of geology concerned with the study of earthquakes and seismic waves
Derived Formsseismologic (ˌsaɪzməˈlɒdʒɪk) or seismological, adjectiveseismologically, adverbseismologist, noun
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

Word Origin and History for seismology



1852, from seismo- + -logy. Related: Seismological (1850).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for seismology


[ sīz-mŏlə-jē ]

The scientific study of earthquakes and of the internal structure of the Earth. It includes the study of the origin, geographic distribution, effects, and possible prediction of earthquakes.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for seismology


[ (seyez-mol-uh-jee) ]

The branch of science devoted to the study of seismic waves and the information they provide about the structure of the interior of the Earth.


Our knowledge of the properties of the crust, the mantle, and the core comes from this field.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.