seismogram

/ˈsaɪzməɡræm/
noun
  1. A record made by a seismograph, showing the movement of the ground during an earthquake.
    • The scientist printed the seismogram to study the tremor's details.
    • Students analyzed a seismogram to determine the earthquake's magnitude.
    • The seismogram clearly showed the arrival of the P-waves and S-waves.