why do we get earthquakes

Earthquakes happen when stress builds up in Earth’s crust and rocks suddenly slip along a fault, releasing energy as seismic waves that shake the ground. Most earthquakes are tied to moving tectonic plates, and some can also be triggered by volcanic activity or human actions like wastewater injection.

Quick Scoop

Think of Earth’s crust like a cracked eggshell made of big moving pieces. Those pieces usually move slowly, but friction can make them stick; when they finally break free, the sudden movement is the earthquake.

What causes them

• Tectonic plates push, pull, or slide past each other.
• Stress builds up where rocks are locked together.
• The rocks eventually fracture or slip.
• That sudden release sends out seismic waves.

Why some places shake more

Earthquakes are more common near plate boundaries, where most plate motion happens. That is why regions along faults and plate edges usually see more quakes than areas deep inside a plate.

Other kinds

Not every earthquake is purely tectonic. Some are linked to volcanoes, underground collapses, explosions, or certain industrial activities, though tectonic quakes are the main type.

Earthquakes are basically Earth’s way of releasing built-up strain all at once.