| 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. |
| Many countries around the world have seismographic networks that monitor and record seismic waves. |
| At ice camp we would fire air guns and record the seismic waves being reflected off of the ocean floor. |
| The Santa Cruz mountains suffered little damage from the seismic waves, even though they were close to the epicenter. |
| These seismic waves in the crust are what people feel when they experience an earthquake. |
