coseismals
/koʊˈsaɪzməlz/
noun
- Lines on a map connecting points where an earthquake shock is felt at the same time.
- The seismologist drew coseismals to show how the earthquake spread across the region.
- On the map, the coseismals formed concentric rings around the epicenter.
- By studying coseismals, scientists can understand the speed of seismic waves.