Faulting of rock in earth 's crust causes earthquakes.
Thrust faults are a result of compressional forces in the earth's crust.
Compressional forces cause earthquakes.
What causes earth quakes?
(A) electromagnetic energy
(B) movement
(C) harmful substances
(D) the force
(E) shaking
(F) compressional forces
(G) Water expanding
(H) energy of moving objects