This record made by the seismograph is called a seismogram. When you look at a seismogram, there will be wiggly lines all across it. These are all the seismic waves that the seismograph has recorded.

When an earthquake occurs, the seismogram will show ground motion fluctuations that typically last from tens of seconds to many minutes depending on the size of the earthquake. The height of the ...

A new study of decades worth of seismogram data shows that the surface of Earth’s iron and nickel core is more malleable than ...