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AED
| Term | Definition |
|---|---|
| body wave | An earthquake wave that travels through the body of earth rather than on its surface see also p-wave,s-wave and surface wave |
| surface wave | An earthquake wave that travels at or near the surface of earth |
| p-wave | A primary (compression) earthquake wave that travels through the body of earth earth |
| s-wave | seismic body waves that travel through the Earth's interior after earthquakes, moving at speeds of approximately |
| aftershock | a smaller earthquake following the main shock of a large earthquake. |
| epicenter | the point on the earth's surface vertically above the focus of an earthquake. |
| focus | the center of interest or activity. |