earthquake

2. a layer within the Earth between the crust and the core
3. places where plates slide sideways past each other
5. instruments used to record the motion of the ground during an earthquake
7. the study of earthquakes and seismic waves that move through and around the Earth
9. result of a underwater earthquake
11. a fracture or zone of fractures between two blocks of rock
13. the solid, outer part of Earth
14. the point on the earth's surface vertically above the focus of an earthquake
15. the energy or the movements that cause a change in the Earth's crust
16. the rating used to determine severity of a earthquake
18. smaller earthquakes that occur in the same general area during the days to years following a larger event
19. gigantic pieces of the Earth's crust and uppermost mantle
20. the top layer of the earth crust

1. the internal part of the seismograph
4. relating to earthquakes or other vibrations of the earth and its crust
6. the movement of continents resulting from the motion of tectonic plates
8. title of this crossword
10. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
12. The location where two plates meet
17. The innermost part of the earth