A fault line is a crack where blocks of rock have slipped past each other. Live on a fault line.
The rock catches and then jumps, and the jump is what an earthquake is. A fault line is also used of any division running through a group of people.
1nounfault lineA crack where blocks of rock have slipped past each other.
“The fault line runs the whole length of the valley.”
fault line is a crack.
Practised in Rocks & Minerals