When you buy through links on our articles, Future and its syndication partners may earn a commission. Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of ...

(CNN) — Here’s a look at earthquakes worldwide. The US Geological Survey describes an earthquake as “the ground shaking caused by a sudden slip on a fault. Stresses in the earth’s outer layer push the ...

Earth's crust is the planet's outermost layer. It is made of solid rock and sits on top of another layer, called the mantle.