How do earthquakes transmit energy?

Question

im doing a project and i need the answer to this question thanks. The clearer you explain the better.

Answer 1

Let's imagine that there is a long coiled spring from one side of a big room to another. The spring is slightly open so that any part of it can either be compressed or expanded, but right now it is at rest. You hit one end of the coiled spring, which instantaneously compresses the end part of the spring. You've just imparted energy into the spring, but so far all that energy is at that one end of it. What happens next is that you'll see a travelling wave, consisting of a small compressed region, moving from your end of the spring to the other. If there was a small object at the other end of the spring, that travelling wave will knock it over, just as if you had knocked it over yourself. This type of wave motion in fact is called a longitudinal wave. There are other types of waves possible, such as transverse waves (up and down waves, like ocean waves), and earthquakes can transmit energy through a variety of different kinds of waves, these two being the most common.

Answer 2

An earthquake is when the surface of the earth is shaking because of rapid movement of the rocky outer layer of the earth. If energy that is stored inside the earth (strain in rocks is the usual form) is released suddenly, an earthquake occurs. When this happens, earthquake waves transfer the released energy to the surface of the earth. Seismology is the study of earthquakes, and the waves that they create.