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| Title: |
View of Earth's interior showing P and S wave paths. |
| Caption: |
The abrupt change in physical properties at the mantle-core boundary causes the wave paths to bend sharply. This change in wave direction results in a shadow zone for P waves between about 105 and 140 degrees. Further, any location more than 105 degrees from an earthquake epicenter will not receive direct S waves since the outer core will not transmit them. |
| Keywords: |
earthquakes, seismic waves, inner core, outer core, mantle |
