Across
- 4. a geological fault in which the hanging wall appears to have been pushed up along the footwall.
- 6. is 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.
- 9. is a surface wave having a horizontal motion that is transverse (or perpendicular) to the direction the wave is traveling.
- 10. is a seismic wave that is trapped near the surface of the earth.
- 11. is seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving.
- 12. record produced by a seismograph in response to ground.
- 13. A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other.
Down
- 1. A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
- 2. mainly in a horizontal direction, parallel to the line of the fault.
- 3. a fault on which the movement is along both the strike and the dip of the fault.
- 4. an undulating wave that travels over the surface of a solid, especially of the ground in an earthquake, with a speed independent of wavelength, the motion of the particles being in ellipses.
- 5. travel through the interior of the earth.
- 7. a dip-slip fault in which the block above the fault has moved downward relative to the block below.
- 8. fault are inclined fractures where the blocks have mostly shifted vertically. If the rock mass above an inclined fault moves down, the fault is termed normal, whereas if the rock above the fault moves up, the fault is termed reverse.
- 11. relating to earthquakes or other vibrations of the earth and its crust.