| Question | Answer |
|---|---|
| EARTHQUAKE | causes vibrations in the ground that result from movement along breaks in earths lithosphere. |
| PLATE BOUNDARY | where earths lithospheric plates move and interact with each other. |
| FAULT | break in earths litosphere where one block of rock moves toward,away from,or past another. |
| EPICENTER | location directly above the focus of an earthquake. |
| FOCUS | location directly above the focus of an earthquake. |
| PRIMARY WAVE | p-wave, Fastest-moving type of seismic wave ;causes particles in the ground to move in a push pull motion. |
| SECONDARY WAVE | S-wave;causes particles in the ground to move side to side and up and down at right angles relative to the directions the wave travles. |
| SELSMIC WAVE | travles as vibrations on and in earth. |
| SEISMOGRAM | graphical illustration of seismic waves |
| SEISMOLOGIST | scientist who studies earthquakes |
| SEISMOMETER | measures and records ground motion and the distance and direction seismic waves travel |
| SURFACE WAVE | causes particles in the ground to move up and down, similar to ocean waves. |
