A seismogram is a written seismographic record obtained from ground motions as a result of earthquakes or explosions in the form of seismic waves. Seismic waves on a seismogram look like wiggly lines that are spread acro... More »

A seismogram is a visual record that is created by a seismograph. A seismograph is a piece of equipment that records earthquake movements. These two items go hand in hand and are essential for the study of earthquakes. More »

Geologists locate the epicenter of an earthquake by taking measurements from three seismograms. These are measured at seismic stations and give the distance that the earthquake's waves traveled in order to reach the stat... More »

Seismic waves occur from actions within the Earth's core, including breaking and splitting rocks, explosions and volcanic eruptions. Seismic waves occur on land and in the ocean; they exist in two primary forms — surface... More »

Roughly three quarters of the world's seismic energy is released in the form of earthquakes along the Pacific Ocean where it meets the western coasts of North, Central and South America. This seismic activity also reache... More »

A seismogram is interpreted when geologists look at squiggly lines made by a seismograph on a piece of paper, according to Michigan Technological University. Initial waves, called P waves, are small and close together be... More »

A seismogram is a visual record that is created by a seismograph. A seismograph is a piece of equipment that records earthquake movements. These two items go hand in hand and are essential for the study of earthquakes. More »