👉 In Earth science, an earthquake is a natural seismic event that occurs when the ground shakes violently due to the movement of plates on the Earth's surface. These plate boundaries are often caused by tectonic plates moving through each other or the mantle of the Earth moving upward and outward. An earthquake can have different effects on people depending on its magnitude, location, and type. It is an important natural disaster that affects both humans and nature, causing destruction, loss of life, and damage to buildings,