EARTHQUAKES
Across
- 3. the outer solid part of the earth
- 5. an instrument used to detect and record earthquakes
- 6. strike-slip fault that accommodates relative horizontal slip between other tectonic elements
- 7. an instrument used to detect and record earthquakes
- 9. a record written by a seismograph in response to ground motions produced by an earthquake
- 10. the part of the earth's interior between the metallic outer core and the crust.
- 11. a seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving.
- 12. epicenter is the point directly above it at the surface of the Earth. Also commonly termed the
- 14. the size of the wiggles on an earthquake recording
- 15. the outermost major layer of the earth
- 16. a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving.
- 17. an elastic wave generated by an impulse such as an earthquake or an explosion
Down
- 1. the point on the earth's surface vertically above the hypocenter
- 2. vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally
- 4. a number describing the severity of an earthquake
- 8. a mathematical device to compare the size of earthquakes
- 10. a number that characterizes the relative size of an earthquake
- 12. a fracture along which the blocks of crust on either side have moved relative to one another parallel to the fracture
- 13. a movement of surface material down a slope
- 15. the innermost part of earth