coseismal

or co·seis·mic

[koh-sahyz-muh l, -sahys-]

adjective

of, relating to, or being in a line, curve, etc., connecting or comprising points on the earth's surface at which an earthquake wave arrives simultaneously.

Origin of coseismal

First recorded in 1850–55; co- + seismal

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for coseismal

Historical Examples of coseismal

The coseismal lines obtained in this manner are represented by the continuous curves in Fig. 62.
A Study of Recent Earthquakes
Charles Davison

British Dictionary definitions for coseismal

coseismal

coseismic

adjective

of or designating points at which earthquake waves are felt at the same time
(of a line on a map) connecting such points

noun

such a line on a map

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