Question

movements.
2. Explain the occurrence of earthquakes. How are they measured?
) Earthquakes originate deep inside the Earth's crust.​

Answer 1

Earthquakes are recorded by a seismographic network. Each seismic station in the network measures the movement of the ground at that site. The slip of one block of rock over another in an earthquake releases energy that makes the ground vibrate. ... Magnitude is the most common measure of an earthquake's size.