Earthquake

3. The region where two tectonic plates are in contact
4. Large pieces that float on the partly melted rock in the earth’s mantle
7. The upper layer of the earth’s mantle, below the lithosphere
11. Idea that the earth’s crust is made up of moving plates
12. Measures the earthquakes magnitude
15. The point on the surface of the earth directly above the focus
16. A rigid layer made up of the crust and upper area of the mantle, it is 100 km (about 62 miles) thick
17. Name of the fault when plate boundaries move apart forming a gap
18. A machine used to measure the strength of the earthquake
19. Strength of an earthquake’s seismic wave
20. This wave moves in an up and down pattern

1. Breaks in the Earth’s surface along which rock can move.
2. Beginning point of an earthquake
5. A giant wave usually caused by an earthquake beneath the ocean floor
6. Scientists who study the movement of the earth
8. plate boundaries move horizontally past each other
9. Shaking of the ground caused by the sudden release of energy that is stored in the bedrocks along the plate boundaries
10. This wave moves in a straight path with a push and pull motion
13. Name of the fault when plate boundaries push together forcing rock upward
14. The energy waves released by an earthquake flowing out from the focus in all directions