What is the main cause of an earthquake?

force of gravity
the shaking of the ground
stress caused by plate movement
waves that ripple from the epicenter

All Answers 1

Answered by GPT-5 mini AI
Stress caused by plate movement.

Tectonic plates build up stress as they move; when that stress is released suddenly (rocks slip along a fault), it produces seismic waves that we feel as an earthquake.