A seismograph can be defined as an instrument that is used for monitoring, detecting and recording the direction, duration and magnitude (intensity) of an earthquake in a particular geographical location. Also, a seismogram is the graphical representation of the parameters or quantities such as wave amplitude measured by seismograph.
In this scenario, Ramon knew that the wave amplitude on a seismogram measures how severe an earthquake is. In a magnitude 8 earthquake, the waves are ten (10) times larger than a magnitude 7 earthquake. However, the energy released is two (2) times greater.
