Fault trace

Guatemala Earthquake 1976. Along Motagua fault trace where it crosses the Gualán soccer field. Note that "mole track" which is best developed in hard packed, brittle surface materials.

A fault trace is the intersection of a geological fault with the ground surface, leaving a visible mark. The term also applies to a line plotted on a geological map to represent a fault.

Source

• USGS Earthquake Hazards Program: Visual Glossary