Forces within the Earth can cause earthquakes when rocks break and move, releasing energy that produces vibrations. To prepare, one should create an earthquake plan that identifies a safe place in the home and includes a first aid kit, supplies, and radio. During a quake, drop and cover under sturdy furniture or crouch down and cover your face with your hands if nothing is available. Stay away from windows, doors, and walls, and watch for falling objects. Outdoor safety involves staying away from buildings, lights, and wires, while at school one should follow teacher instructions and not fool around.