A seismogram is simply a record of the vibration of the ground, as shown in the image below. It shows the recording of a magnitude 3 earthquake in the Fond Parisien area by a Raspberry Shake seismological station located in Pétionville, about 60 km away. The earthquake was too small and far away to be felt – but the station was very sensitive and recorded it perfectly!
The seismogram contains information — seismological data — that can be used by seismologists to locate earthquakes and determine their magnitude.
