Lithosphere.
most times earthquakes occur
The earths crust is split into large pieces called plates. When they move they cause a earthquake.
The large pieces of Earth's crust that move over the asthenosphere are called tectonic plates. These plates are responsible for the movement of continents and the occurrence of geological events such as earthquakes and volcanic eruptions.
A fault is a break in the Earth's crust where pieces of the crust move relative to each other. This movement can cause earthquakes as stress builds up along the fault line and is released suddenly. Faults are common in regions where tectonic plates interact and are essential for understanding earthquake hazards.
earthquakes happen when these sections of earths crust move
The weather and sky have nothing to do with it. Earthquakes happen when to pieces of earths crust suddenly move against or under another.
Tectonic plates.
The earths crust
The tectonic plates.
crust
Very gradually
Simple- Convection in the mantle causes mantle to slowly move, and it pushes against the crust. As it does this, the tectonic plates move.