How are seismic waves measured?

A seismic wave is measured at specific stations using sensors that are placed in specific areas; for example, the Pacific Ocean has many of these sensors due to the seismic activity in the ocean. The sensors measure the ripples in the Earth's crust and the data is sent to a station where it is recorded and classified by intensity. When an earthquake occurs, it's like dropping a stone in a pond; waves will ripple out from the epicenter and will decrease in force the farther away they get.

Seismic waves are measured using seismometers, which detect the ground motion caused by seismic events such as earthquakes. These instruments record the amplitude, frequency, and arrival times of seismic waves, providing data used to analyze the characteristics of the earthquake and the structure of the Earth's interior.