seasonal heating and cooling of Earth's surface weathering of rock at Earth's surface Earth's gravitational attraction to the Moon faulting of rock in Earth's crust
Most of Earth's major earthquakes are caused by

Options:
- seasonal heating and cooling of Earth's surface
- weathering of rock at Earth's surface
- Earth's gravitational attraction to the Moon
- faulting of rock in Earth's crust

faulting of rock in Earth's crust