| At ice camp we would fire air guns and record the seismic waves being reflected off of the ocean floor. |
| Like bats using echolocation to navigate through the night, geophysicists rely on seismic waves for information on the Earth's deep interior. |
| Using a bathroom scale, we could only measure the seismic waves of an earthquake at the epicenter at best. |
| Many countries around the world have seismographic networks that monitor and record seismic waves. |
| At the time, seismographs in western Europe recorded seismic waves from the blast. |
| For three years, the seismometers recorded how seismic waves from hundreds of earthquakes worldwide bounced through the mantle. |
