Here's why:

* Long narrow fractures: These are known as faults. Faults are breaks in the Earth's crust where rocks have moved past each other.

* Crust: The Earth's outer layer is made up of the crust.

* Earthquakes: Earthquakes occur when these faults suddenly slip, releasing energy in the form of seismic waves. This causes shaking and vibrations on the surface.

So, the answer to your question is yes, earthquakes occur at long narrow fractures in the crust, which are called faults.