Answer:
Geologist who found a imbalance on the land which a break had noticed is a fault. A fault is a fracture on the piece of land or it can be together a number of breaks on the piece of land.
This happens between the blocks of rock and this breakage or the moving of the blocks can be either occurring slowly or in a fast way and can take form of a earthquake. This might cause the rock to slip from it's original place.