A crack in Earth's crust is called a fault. To find the answer to this question, you can start by conducting a quick internet search using a search engine such as Google. Simply type in the question "What is a crack in Earth's crust called?" and review the search results. The most common and widely accepted term you will come across is "fault." Faults are fractures in the Earth's crust where rocks on either side have moved past each other. These faults can vary in size and movement, ranging from small cracks that are barely noticeable to large fault lines that can cause earthquakes.
