earthquake puzzle

1. waves A transverse earthquake wave that travels through the interior of the earth and is usually the second visual wave to reach a seismograph.
2. The crust is the outermost major layer of the earth.
3. the portion of the earth between the crust and the core.
5. fault A geologic fault in which the hanging wall has moved downward relative to the footwall
8. A process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads.
13. plates The dozen or so plates that make up the surface of the Earth.
14. waves A earthquake wave that travels through the interior of the earth and is usually the first visible wave to be recorded by a seismograph.
16. fault A fault that is likely to become the source of another earthquake.
17. trench A long narrow steep-sided depression in the earth's oceanic crust, usually lying above a subduction zone.
19. wave an earthquake wave that travels around the earth's surface and is usually the third visual wave to reach a seismograph.

1. slip fault Strike-slip faults are vertical fractures where the blocks have mostly moved horizontally.
4. Fault a reverse fault in which the angle between the horizontal and the plane is small —called also overthrust fault
6. scale The Mercalli intensity scale is a seismic scale used for measuring the intensity of an earthquake.
7. The magnitude is a number that characterizes the relative size of an earthquake.
9. core The Outer Core is the second to last layer of the Earth.
10. The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
11. Interplate pertains to processes between the earth's crustal plates.
12. motion Ground motion is the movement of the earth's surface from earthquakes or explosions.
15. zone an area in which there are several closely spaced faults
18. core The inner core is shaped like a ball.the outer core is made mostly of iron and nickel.