Final answer:
Earthquakes happen where two large pieces of earth's crust meet, known as tectonic plates, which are constantly moving and can cause earthquakes.
Step-by-step explanation:
Earthquakes usually happen where two large pieces of earth's crust meet. These large pieces of earth's crust are called tectonic plates. Tectonic plates are huge slabs of rock that make up the Earth's surface. They fit together like a jigsaw puzzle and are constantly moving, which can cause earthquakes.
Learn more about Tectonic plates